JpegImage Class
Summary: Efficiently manipulate JPEG raster images with our API, offering support
for various color profiles such as RGB and CMYK, customizable bits per pixel
resolution, and processing of EXIF, JFIF, and XMP metadata containers.
Enjoy automated rotation based on orientation data and choose from different
compression levels, including lossless JPEG, to achieve optimal image quality
and file size balance for your projects.
Module: aspose.imaging.fileformats.jpeg
Full Name: aspose.imaging.fileformats.jpeg.JpegImage
Inheritance: IObjectWithBounds, IRasterImageArgb32PixelLoader, IRasterImageRawDataLoader, IHasXmpData, IHasMetadata, IHasExifData, IHasJpegExifData, RasterCachedImage
Constructors
Name | Description |
---|---|
JpegImage(jpeg_options, width, height) | Initialize a new JpegImage object with the provided JPEG options. This constructor empowers you to tailor various settings for the JPEG image, such as compression level, quality, and additional parameters, granting precise control over the resulting image format. |
JpegImage(path) | The JpegImage class initiates effortlessly by invoking its constructor with the specified path parameter. This constructor enables seamless creation of JPEG images, ensuring swift integration into your projects with ease. |
JpegImage(raster_image) | Initialize a new instance of the JpegImage class with a raster image parameter. This constructor provides a convenient way to create JPEG images directly from raster images, streamlining the workflow for working with JPEG images in your applications. |
JpegImage(stream) | Initialize a JPEG image object with the JpegImage class using a stream parameter. This constructor simplifies the process of working with JPEG images, offering a straightforward approach for integrating them into your projects effortlessly. |
JpegImage(width, height) | Create a new instance of the JpegImage class with the specified width and height parameters. This constructor allows you to create JPEG images with custom dimensions, giving you flexibility in managing image sizes in your application. |
Properties
Name | Type | Access | Description |
---|---|---|---|
auto_adjust_palette | bool | r/w | Gets or sets a value indicating whether automatic adjust palette. |
background_color | Color | r/w | Gets or sets a value for the background color. |
bits_per_pixel | int | r | Retrieve the pixel depth of the image effortlessly with this property, offering insights into the richness of color or grayscale representation. Whether it’s a vibrant photograph or a monochrome illustration, this property provides crucial information about the image’s visual complexity. |
bounds | Rectangle | r | Gets the object bounds. |
buffer_size_hint | int | r/w | Gets or sets the buffer size hint which is defined max allowed size for all internal buffers. |
cmyk_color_profile | StreamSource | r/w | The CMYK color profile associated with CMYK and YCCK JPEG images ensures precise color conversion and fidelity. It works in conjunction with the RGBColorProfile to guarantee accurate color representation across various devices and applications. This pairing is crucial for maintaining consistency in color rendering and achieving optimal image quality. |
comment | string | r/w | Manage JPEG file comments with this property, allowing you to add or retrieve descriptive annotations associated with the image. Whether it’s tagging images with metadata or appending additional context, this property offers flexibility in organizing and categorizing your JPEG files. |
container | Image | r | Gets the Image container. |
data_stream_container | StreamContainer | r | Gets the object’s data stream. |
destination_cmyk_color_profile | StreamSource | r/w | The CMYK color profile is vital for the accurate color conversion of CMYK and YCCK JPEG images during the saving process. It works in tandem with the RGBColorProfile to ensure correct color representation, maintaining consistency and quality across different devices and software. This synchronization is crucial for achieving accurate and reliable color rendering in the final saved images. |
destination_rgb_color_profile | StreamSource | r/w | The RGBColorProfile is essential for the accurate color conversion of CMYK and YCCK JPEG images during the saving process. When paired with the CMYKColorProfile, it ensures that the colors are rendered correctly and maintains consistency across different devices and applications. This combination is crucial for preserving the intended color representation and achieving high-quality image output. |
disposed | bool | r | Gets a value indicating whether this instance is disposed. |
exif_data | JpegExifData | r/w | Manage EXIF data with this property, allowing you to add or retrieve metadata associated with the image. Whether it’s extracting information about the camera settings or modifying existing metadata, this property offers flexibility in managing the EXIF data container. |
file_format | FileFormat | r | Retrieve the format of the image effortlessly with this property. It provides valuable insight into the file format, aiding in seamless integration and compatibility checks across various platforms and applications. |
has_alpha | bool | r | Gets a value indicating whether this instance has alpha. |
has_background_color | bool | r/w | Gets or sets a value indicating whether image has background color. |
has_transparent_color | bool | r/w | Gets a value indicating whether image has transparent color. |
height | int | r | Retrieve the height of the image effortlessly with this property. It provides quick access to the vertical dimension of the image, allowing you to efficiently determine its size and aspect ratio without the need for complex calculations or additional methods. |
horizontal_resolution | double | r/w | This property grants you access to the horizontal resolution of the RasterImage, measured in pixels per inch. By setting or retrieving this value, you can precisely control the resolution of the image, ensuring it meets your specific requirements for quality and clarity. |
ignore_embedded_color_profile | bool | r/w | Retrieves or modifies the flag denoting whether the embedded color profile is disregarded. By setting this flag, users can specify whether the default color profile should be used instead of the embedded one. This option ensures greater control over color management, facilitating adjustments for consistency and compatibility across various platforms and applications. |
image_opacity | float | r | Gets opacity of this image. |
interrupt_monitor | InterruptMonitor | r/w | Gets or sets the interrupt monitor. |
is_cached | bool | r | Gets a value indicating whether image data is cached currently. |
is_raw_data_available | bool | r | Gets a value indicating whether raw data loading is supported. |
jfif | JFIFData | r/w | This property allows you to access or modify the JFIF (JPEG File Interchange Format) data associated with the JPEG image. JFIF is a standard format for exchanging JPEG-compressed images between computers and other devices. By getting or setting this property, you can interact with the JFIF data, which may include information such as the image’s resolution, aspect ratio, and thumbnail. |
jpeg_options | JpegOptions | r | Gain access to the JPEG options employed during the creation or loading of this JpegImage instance with ease. This property offers valuable details about the specific settings utilized, empowering users to understand and replicate image processing workflows effectively. Whether it’s compression levels, quality settings, or other parameters, this property provides essential insights for seamless image manipulation. |
palette | IColorPalette | r/w | Gets or sets the color palette. The color palette is not used when pixels are represented directly. |
premultiply_components | bool | r/w | Gets or sets a value indicating whether the image components must be premultiplied. |
raw_custom_color_converter | IColorConverter | r/w | Gets or sets the custom color converter |
raw_data_format | PixelDataFormat | r | This property retrieves the raw data format of the image, which indicates how the image data is structured and encoded. Understanding the raw data format is essential for processing or manipulating the image data effectively. It provides insights into the underlying representation of the image, such as whether it’s compressed, encoded in a specific color space, or stored in a particular file format. Accessing this property allows you to gain valuable information about the image’s data structure, enabling you to perform various operations or optimizations tailored to its specific format. |
raw_data_settings | RawDataSettings | r | Gets the current raw data settings. Note when using these settings the data loads without conversion. |
raw_fallback_index | int | r/w | Gets or sets the fallback index to use when palette index is out of bounds |
raw_indexed_color_converter | IIndexedColorConverter | r/w | Gets or sets the indexed color converter |
raw_line_size | int | r | Gets the raw line size in bytes. |
rgb_color_profile | StreamSource | r/w | The RGB color profile for CMYK and YCCK JPEG images ensures accurate color conversion and representation. It must be paired with the CMYKColorProfile to maintain consistency and fidelity in color rendering. This pairing is essential for applications that require precise color management and reproduction of images, ensuring that the RGB data is properly interpreted and displayed. |
size | Size | r | Gets the object size. |
transparent_color | Color | r/w | Gets the image transparent color. |
update_xmp_data | bool | r/w | Gets or sets a value indicating whether to update the XMP metadata. |
use_palette | bool | r | Gets a value indicating whether the image palette is used. |
use_raw_data | bool | r/w | Gets or sets a value indicating whether to use raw data loading when the raw data loading is available. |
vertical_resolution | double | r/w | This property manages the vertical resolution, expressed in pixels per inch, for the associated RasterImage. Adjusting this resolution impacts the size and quality of the image when printed or displayed at a fixed physical size. By setting this property, you control how densely the image’s pixels are packed vertically, affecting its overall sharpness and clarity. |
width | int | r | This property retrieves the width of the image, expressed in pixels. It provides essential information about the image’s dimensions, enabling accurate rendering, manipulation, or display of the image data. |
xmp_data | XmpPacketWrapper | r/w | Gets or sets XMP metadata, enabling seamless integration of descriptive information into the image file. Whether you’re extracting existing XMP metadata or updating it with new information, this property simplifies the management of extended metadata, ensuring compatibility with various applications and workflows. |
Methods
Name | Description |
---|---|
adjust_brightness(brightness) | Adjust of a brightness for image. |
adjust_contrast(contrast) | Image contrasting |
adjust_gamma(gamma) | Gamma-correction of an image. |
adjust_gamma(gamma_red, gamma_green, gamma_blue) | Gamma-correction of an image. |
auto_rotate() | Automatically rotates the image based on orientation data extracted from Exif metadata. This method ensures that images are displayed in the correct orientation, enhancing user experience and eliminating the need for manual adjustments. By analyzing Exif information, the image is rotated accordingly, providing a seamless viewing experience across different platforms and devices. This automated rotation process simplifies image handling and improves overall usability, especially when dealing with large batches of images with varying orientations. |
binarize_bradley(brightness_difference) | Binarization of an image using Bradley’s adaptive thresholding algorithm using the integral image thresholding |
binarize_bradley(brightness_difference, window_size) | Binarization of an image using Bradley’s adaptive thresholding algorithm using the integral image thresholding |
binarize_fixed(threshold) | Binarization of an image with predefined threshold |
binarize_otsu() | Binarization of an image with Otsu thresholding |
blend(origin, overlay, overlay_alpha) | Blends this image instance with the overlay image. |
blend(origin, overlay, overlay_area, overlay_alpha) | Blends this image instance with the overlay image. |
cache_data() | Caches the data and ensures no additional data loading will be performed from the underlying DataStreamSupporter.data_stream_container. |
can_load(file_path) | Determines whether image can be loaded from the specified file path. |
can_load(file_path, load_options) | Determines whether image can be loaded from the specified file path and optionally using the specified open options. |
can_load(stream) | Determines whether image can be loaded from the specified stream. |
can_load(stream, load_options) | Determines whether image can be loaded from the specified stream and optionally using the specified loadOptions. |
can_load_stream(stream) | Determines whether image can be loaded from the specified stream. |
can_load_stream_with_options(stream, load_options) | Determines whether image can be loaded from the specified stream and optionally using the specified loadOptions. |
can_load_with_options(file_path, load_options) | Determines whether image can be loaded from the specified file path and optionally using the specified open options. |
can_save(options) | Determines whether image can be saved to the specified file format represented by the passed save options. |
create(files) | Creates the multipage image containing the specified files. |
create(files, throw_exception_on_load_error) | Creates the multipage image containing the specified files. |
create(image_options, width, height) | Creates a new image using the specified create options. |
create(images) | Creates a new image using the specified images as pages |
create(images, dispose_images) | Creates a new image the specified images as pages. |
create(multipage_create_options) | Creates the specified multipage create options. |
create_from_files(files) | Creates the multipage image containing the specified files as lazy loading pages. |
create_from_files(files, throw_exception_on_load_error) | Creates the multipage image containing the specified files as lazy loading pages. |
create_from_image(raster_image) | Initializes a new instance of the JpegImage class. |
create_from_images(images) | Creates a new image using the specified images as pages |
create_from_images(images, dispose_images) | Creates a new image the specified images as pages. |
create_from_stream(stream) | Initializes a new instance of the JpegImage class. |
crop(left_shift, right_shift, top_shift, bottom_shift) | Crop image with shifts. |
crop(rectangle) | Cropping the image. |
dither(dithering_method, bits_count) | Performs dithering on the current image. |
dither(dithering_method, bits_count, custom_palette) | Performs dithering on the current image. |
filter(rectangle, options) | Filters the specified rectangle. |
get_argb_32_pixel(x, y) | Gets an image 32-bit ARGB pixel. |
get_default_argb_32_pixels(rectangle) | Gets the default 32-bit ARGB pixels array. |
get_default_options(args) | Gets the default options. |
get_default_pixels(rectangle, partial_pixel_loader) | Gets the default pixels array using partial pixel loader. |
get_default_raw_data(rectangle, partial_raw_data_loader, raw_data_settings) | Gets the default raw data array using partial pixel loader. |
get_default_raw_data(rectangle, raw_data_settings) | Gets the default raw data array. |
get_file_format(file_path) | Gets the file format. |
get_file_format(stream) | Gets the file format. |
get_file_format_of_stream(stream) | Gets the file format. |
get_fitting_rectangle(rectangle, pixels, width, height) | Gets rectangle which fits the current image. |
get_fitting_rectangle(rectangle, width, height) | Gets rectangle which fits the current image. |
get_modify_date(use_default) | Retrieves the date and time when the resource image underwent its latest modification. This method provides valuable metadata, enabling users to track and manage updates to the image file effectively. By accessing this information, users can ensure the integrity and currency of their image assets, facilitating informed decision-making regarding image usage and maintenance. |
get_original_options() | Gets the options based on the original file settings. This can be helpful to keep bit-depth and other parameters of the original image unchanged. For example, if we load a black-white PNG image with 1 bit per pixel and then save it using the DataStreamSupporter.save(file_path) method, the output PNG image with 8-bit per pixel will be produced. To avoid it and save PNG image with 1-bit per pixel, use this method to get corresponding saving options and pass them to the Image.save(file_path, options) method as the second parameter. |
get_pixel(x, y) | Gets an image pixel. |
get_proportional_height(width, height, new_width) | Gets a proportional height. |
get_proportional_width(width, height, new_height) | Gets a proportional width. |
get_serialized_stream(image_options, clipping_rectangle, page_number) | Converts to aps. |
get_skew_angle() | Gets the skew angle. This method is applicable to scanned text documents, to determine the skew angle when scanning. |
grayscale() | Transformation of an image to its grayscale representation |
load(file_path) | Loads a new image from the specified file path or URL. If filePath is a file path the method just opens the file. If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it. |
load(file_path, load_options) | Loads a new image from the specified file path or URL. If filePath is a file path the method just opens the file. If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it. |
load(stream) | Loads a new image from the specified stream. |
load(stream, load_options) | Loads a new image from the specified stream. |
load_argb_32_pixels(rectangle) | Loads 32-bit ARGB pixels. |
load_argb_64_pixels(rectangle) | Loads 64-bit ARGB pixels. |
load_cmyk_32_pixels(rectangle) | Loads pixels in CMYK format. |
load_cmyk_pixels(rectangle) | Loads pixels in CMYK format. This method is deprecated. Please use more effective the RasterImage.load_cmyk_32_pixels(rectangle) method. |
load_partial_argb_32_pixels(rectangle, partial_pixel_loader) | Loads 32-bit ARGB pixels partially (by blocks). |
load_partial_argb_64_pixels(rectangle, partial_pixel_loader) | Loads 64-bit ARGB pixels partially by packs. |
load_partial_pixels(desired_rectangle, pixel_loader) | Loads pixels partially by packs. |
load_pixels(rectangle) | Loads pixels. |
load_raw_data(rectangle, dest_image_bounds, raw_data_settings, raw_data_loader) | Loads raw data. |
load_raw_data(rectangle, raw_data_settings, raw_data_loader) | Loads raw data. |
load_stream(stream) | Loads a new image from the specified stream. |
load_stream_with_options(stream, load_options) | Loads a new image from the specified stream. |
load_with_options(file_path, load_options) | Loads a new image from the specified file path or URL. If filePath is a file path the method just opens the file. If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it. |
normalize_angle() | Normalizes the angle. This method is applicable to scanned text documents to get rid of the skewed scan. This method uses RasterImage.get_skew_angle() and RasterImage.rotate(angle) methods. |
normalize_angle(resize_proportionally, background_color) | Normalizes the angle. This method is applicable to scanned text documents to get rid of the skewed scan. This method uses RasterImage.get_skew_angle() and RasterImage.rotate(angle, resize_proportionally, background_color) methods. |
read_argb_32_scan_line(scan_line_index) | Reads the whole scan line by the specified scan line index. |
read_scan_line(scan_line_index) | Reads the whole scan line by the specified scan line index. |
remove_metadata() | Removes this image instance metadata by setting this IHasXmpData.xmp_data and IHasExifData.exif_data values to None. |
replace_argb(old_color_argb, old_color_diff, new_color_argb) | Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges. |
replace_color(old_color, old_color_diff, new_color) | Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges. |
replace_color(old_color_argb, old_color_diff, new_color_argb) | Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges. |
replace_non_transparent_colors(new_color) | Replaces all non-transparent colors with new color and preserves original alpha value to save smooth edges. Note: if you use it on images without transparency, all colors will be replaced with a single one. |
replace_non_transparent_colors(new_color_argb) | Replaces all non-transparent colors with new color and preserves original alpha value to save smooth edges. Note: if you use it on images without transparency, all colors will be replaced with a single one. |
resize(new_width, new_height) | Resizes the image. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used. |
resize(new_width, new_height, resize_type) | Resizes the image. |
resize(new_width, new_height, settings) | Resizes the image. |
resize_by_settings(new_width, new_height, settings) | Resizes the image. |
resize_by_type(new_width, new_height, resize_type) | Resizes the image. |
resize_height_proportionally(new_height) | Resizes the height proportionally. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used. |
resize_height_proportionally(new_height, resize_type) | Resizes the height proportionally. |
resize_height_proportionally(new_height, settings) | Resizes the height proportionally. |
resize_height_proportionally_settings(new_height, settings) | Resizes the height proportionally. |
resize_width_proportionally(new_width) | Resizes the width proportionally. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used. |
resize_width_proportionally(new_width, resize_type) | Resizes the width proportionally. |
resize_width_proportionally(new_width, settings) | Resizes the width proportionally. |
resize_width_proportionally_settings(new_width, settings) | Resizes the width proportionally. |
rotate(angle) | Rotate image around the center. |
rotate(angle, resize_proportionally, background_color) | Rotate image around the center. |
rotate_flip(rotate_flip_type) | Rotates, flips, or rotates and flips the image. |
save() | Saves the image data to the underlying stream. |
save(file_path) | Saves the image to the specified file location. |
save(file_path, options) | Saves the object’s data to the specified file location in the specified file format according to save options. |
save(file_path, options, bounds_rectangle) | Saves the object’s data to the specified file location in the specified file format according to save options. |
save(file_path, over_write) | Saves the object’s data to the specified file location. |
save(stream) | Saves the object’s data to the specified stream. |
save(stream, options_base) | Saves the image’s data to the specified stream in the specified file format according to save options. |
save(stream, options_base, bounds_rectangle) | Saves the image’s data to the specified stream in the specified file format according to save options. |
save_argb_32_pixels(rectangle, pixels) | Saves the 32-bit ARGB pixels. |
save_cmyk_32_pixels(rectangle, pixels) | Saves the pixels. |
save_cmyk_pixels(rectangle, pixels) | Saves the pixels. This method is deprecated. Please use more effective the RasterImage.save_cmyk_32_pixels(rectangle, pixels) method. |
save_pixels(rectangle, pixels) | Saves pixels (format specific method). |
save_raw_data(data, data_offset, rectangle, raw_data_settings) | Saves the raw data. |
save_to_stream(stream) | Saves the object’s data to the specified stream. |
save_to_stream_with_options(stream, options_base) | Saves the image’s data to the specified stream in the specified file format according to save options. |
save_to_stream_with_options_rect(stream, options_base, bounds_rectangle) | Saves the image’s data to the specified stream in the specified file format according to save options. |
save_with_options(file_path, options) | Saves the object’s data to the specified file location in the specified file format according to save options. |
save_with_options_rect(file_path, options, bounds_rectangle) | Saves the object’s data to the specified file location in the specified file format according to save options. |
set_argb_32_pixel(x, y, argb_32_color) | Sets an image 32-bit ARGB pixel for the specified position. |
set_palette(palette, update_colors) | Sets the image palette. |
set_pixel(x, y, color) | Sets an image pixel for the specified position. |
set_resolution(dpi_x, dpi_y) | Establishes the resolution for the specified RasterImage, ensuring accurate scaling and printing capabilities. This method empowers users to tailor the image resolution to suit their specific requirements, whether for digital display or physical reproduction. By setting the resolution, users can optimize image quality and ensure compatibility with various output devices and mediums, enhancing the overall visual experience and usability of the image. |
write_argb_32_scan_line(scan_line_index, argb_32_pixels) | Writes the whole scan line to the specified scan line index. |
write_scan_line(scan_line_index, pixels) | Writes the whole scan line to the specified scan line index. |
Constructor: JpegImage(jpeg_options, width, height)
JpegImage(jpeg_options, width, height)
Initialize a new JpegImage object with the provided JPEG options.
This constructor empowers you to tailor various settings for the JPEG image, such
as compression level, quality, and additional parameters, granting precise control
over the resulting image format.
Parameters:
Parameter | Type | Description |
---|---|---|
jpeg_options | JpegOptions | The jpeg options. |
width | int | Image width. |
height | int | Image height. |
Constructor: JpegImage(path)
JpegImage(path)
The JpegImage class initiates effortlessly by invoking its
constructor with the specified path parameter. This constructor enables seamless
creation of JPEG images, ensuring swift integration into your projects with ease.
Parameters:
Parameter | Type | Description |
---|---|---|
path | string | The path to load image from and initialize pixel and palette data with. |
See also:
Example # 1: The example shows how to load a JpegImage from a file.
Constructor: JpegImage(raster_image)
JpegImage(raster_image)
Initialize a new instance of the JpegImage class with a raster image
parameter. This constructor provides a convenient way to create JPEG images
directly from raster images, streamlining the workflow for working with JPEG images
in your applications.
Parameters:
Parameter | Type | Description |
---|---|---|
raster_image | RasterImage | The image to initialize pixel and palette data with. |
Constructor: JpegImage(stream)
JpegImage(stream)
Initialize a JPEG image object with the JpegImage class using a
stream parameter. This constructor simplifies the process of working with JPEG
images, offering a straightforward approach for integrating them into your projects
effortlessly.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load image from and initialize pixel and palette data with. |
Constructor: JpegImage(width, height)
JpegImage(width, height)
Create a new instance of the JpegImage class with the specified width
and height parameters. This constructor allows you to create JPEG images with
custom dimensions, giving you flexibility in managing image sizes in your application.
Parameters:
Parameter | Type | Description |
---|---|---|
width | int | The image width. |
height | int | The image height. |
See also:
Example # 1: The following example shows how to create JPEG image of the specified size.
Method: adjust_brightness(brightness)
adjust_brightness(brightness)
Adjust of a brightness for image.
Parameters:
Parameter | Type | Description |
---|---|---|
brightness | int | Brightness value. |
Method: adjust_contrast(contrast)
adjust_contrast(contrast)
Image contrasting
Parameters:
Parameter | Type | Description |
---|---|---|
contrast | float | Contrast value (in range [-100; 100]) |
Method: adjust_gamma(gamma)
adjust_gamma(gamma)
Gamma-correction of an image.
Parameters:
Parameter | Type | Description |
---|---|---|
gamma | float | Gamma for red, green and blue channels coefficient |
Method: adjust_gamma(gamma_red, gamma_green, gamma_blue)
adjust_gamma(gamma_red, gamma_green, gamma_blue)
Gamma-correction of an image.
Parameters:
Parameter | Type | Description |
---|---|---|
gamma_red | float | Gamma for red channel coefficient |
gamma_green | float | Gamma for green channel coefficient |
gamma_blue | float | Gamma for blue channel coefficient |
Method: binarize_bradley(brightness_difference)
binarize_bradley(brightness_difference)
Binarization of an image using Bradley’s adaptive thresholding algorithm using the integral image thresholding
Parameters:
Parameter | Type | Description |
---|---|---|
brightness_difference | double | The brightness difference between pixel and the average of an s x s window of pixels centered around this pixel. |
Method: binarize_bradley(brightness_difference, window_size)
binarize_bradley(brightness_difference, window_size)
Binarization of an image using Bradley’s adaptive thresholding algorithm using the integral image thresholding
Parameters:
Parameter | Type | Description |
---|---|---|
brightness_difference | double | The brightness difference between pixel and the average of an s x s window of pixels centered around this pixel. |
window_size | int | The size of s x s window of pixels centered around this pixel |
Method: binarize_fixed(threshold)
binarize_fixed(threshold)
Binarization of an image with predefined threshold
Parameters:
Parameter | Type | Description |
---|---|---|
threshold | byte | Threshold value. If corresponding gray value of a pixel is greater than threshold, a value of 255 will be assigned to it, 0 otherwise. |
Method: blend(origin, overlay, overlay_alpha)
blend(origin, overlay, overlay_alpha)
Blends this image instance with the overlay image.
Parameters:
Parameter | Type | Description |
---|---|---|
origin | Point | The background image blending origin. |
overlay | RasterImage | The overlay image. |
overlay_alpha | byte | The overlay alpha. |
Method: blend(origin, overlay, overlay_area, overlay_alpha)
blend(origin, overlay, overlay_area, overlay_alpha)
Blends this image instance with the overlay image.
Parameters:
Parameter | Type | Description |
---|---|---|
origin | Point | The background image blending origin. |
overlay | RasterImage | The overlay image. |
overlay_area | Rectangle | The overlay area. |
overlay_alpha | byte | The overlay alpha. |
Method: can_load(file_path) [static]
can_load(file_path)
Determines whether image can be loaded from the specified file path.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path. |
Returns
Type | Description |
---|---|
bool |
Method: can_load(file_path, load_options) [static]
can_load(file_path, load_options)
Determines whether image can be loaded from the specified file path and optionally using the specified open options.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path. |
load_options | LoadOptions | The load options. |
Returns
Type | Description |
---|---|
bool |
Method: can_load(stream) [static]
can_load(stream)
Determines whether image can be loaded from the specified stream.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load from. |
Returns
Type | Description |
---|---|
bool |
Method: can_load(stream, load_options) [static]
can_load(stream, load_options)
Determines whether image can be loaded from the specified stream and optionally using the specified loadOptions.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load from. |
load_options | LoadOptions | The load options. |
Returns
Type | Description |
---|---|
bool |
Method: can_load_stream(stream) [static]
can_load_stream(stream)
Determines whether image can be loaded from the specified stream.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load from. |
Returns
Type | Description |
---|---|
bool |
Method: can_load_stream_with_options(stream, load_options) [static]
can_load_stream_with_options(stream, load_options)
Determines whether image can be loaded from the specified stream and optionally using the specified loadOptions.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load from. |
load_options | LoadOptions | The load options. |
Returns
Type | Description |
---|---|
bool |
Method: can_load_with_options(file_path, load_options) [static]
can_load_with_options(file_path, load_options)
Determines whether image can be loaded from the specified file path and optionally using the specified open options.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path. |
load_options | LoadOptions | The load options. |
Returns
Type | Description |
---|---|
bool |
Method: can_save(options)
can_save(options)
Determines whether image can be saved to the specified file format represented by the passed save options.
Parameters:
Parameter | Type | Description |
---|---|---|
options | ImageOptionsBase | The save options to use. |
Returns
Type | Description |
---|---|
bool |
Method: create(files) [static]
create(files)
Creates the multipage image containing the specified files.
Parameters:
Parameter | Type | Description |
---|---|---|
files | string | The files. |
Returns
Type | Description |
---|---|
Image | The multipage image |
Method: create(files, throw_exception_on_load_error) [static]
create(files, throw_exception_on_load_error)
Creates the multipage image containing the specified files.
Parameters:
Parameter | Type | Description |
---|---|---|
files | string | The files. |
throw_exception_on_load_error | bool | if set to |
Returns
Type | Description |
---|---|
Image | The multipage image |
Method: create(image_options, width, height) [static]
create(image_options, width, height)
Creates a new image using the specified create options.
Parameters:
Parameter | Type | Description |
---|---|---|
image_options | ImageOptionsBase | The image options. |
width | int | The width. |
height | int | The height. |
Returns
Type | Description |
---|---|
Image | The newly created image. |
Method: create(images) [static]
create(images)
Creates a new image using the specified images as pages
Parameters:
Parameter | Type | Description |
---|---|---|
images | Image[] | The images. |
Returns
Type | Description |
---|---|
Image | The Image as IMultipageImage |
Method: create(images, dispose_images) [static]
create(images, dispose_images)
Creates a new image the specified images as pages.
Parameters:
Parameter | Type | Description |
---|---|---|
images | Image[] | The images. |
dispose_images | bool | if set to |
Returns
Type | Description |
---|---|
Image | The Image as IMultipageImage |
Method: create(multipage_create_options) [static]
create(multipage_create_options)
Creates the specified multipage create options.
Parameters:
Parameter | Type | Description |
---|---|---|
multipage_create_options | MultipageCreateOptions | The multipage create options. |
Returns
Type | Description |
---|---|
Image | The multipage image |
Method: create_from_files(files) [static]
create_from_files(files)
Creates the multipage image containing the specified files as lazy loading pages.
Parameters:
Parameter | Type | Description |
---|---|---|
files | string | The files. |
Returns
Type | Description |
---|---|
Image | The multipage image |
Method: create_from_files(files, throw_exception_on_load_error) [static]
create_from_files(files, throw_exception_on_load_error)
Creates the multipage image containing the specified files as lazy loading pages.
Parameters:
Parameter | Type | Description |
---|---|---|
files | string | The files. |
throw_exception_on_load_error | bool | if set to |
Returns
Type | Description |
---|---|
Image | The multipage image |
Method: create_from_image(raster_image) [static]
create_from_image(raster_image)
Initializes a new instance of the JpegImage class.
Parameters:
Parameter | Type | Description |
---|---|---|
raster_image | RasterImage | The image to initialize pixel and palette data with. |
Returns
Type | Description |
---|---|
JpegImage |
Method: create_from_images(images) [static]
create_from_images(images)
Creates a new image using the specified images as pages
Parameters:
Parameter | Type | Description |
---|---|---|
images | Image[] | The images. |
Returns
Type | Description |
---|---|
Image | The Image as IMultipageImage |
Method: create_from_images(images, dispose_images) [static]
create_from_images(images, dispose_images)
Creates a new image the specified images as pages.
Parameters:
Parameter | Type | Description |
---|---|---|
images | Image[] | The images. |
dispose_images | bool | if set to |
Returns
Type | Description |
---|---|
Image | The Image as IMultipageImage |
Method: create_from_stream(stream) [static]
create_from_stream(stream)
Initializes a new instance of the JpegImage class.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load image from and initialize pixel and palette data with. |
Returns
Type | Description |
---|---|
JpegImage |
Method: crop(left_shift, right_shift, top_shift, bottom_shift)
crop(left_shift, right_shift, top_shift, bottom_shift)
Crop image with shifts.
Parameters:
Parameter | Type | Description |
---|---|---|
left_shift | int | The left shift. |
right_shift | int | The right shift. |
top_shift | int | The top shift. |
bottom_shift | int | The bottom shift. |
Method: crop(rectangle)
crop(rectangle)
Cropping the image.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle. |
Method: dither(dithering_method, bits_count)
dither(dithering_method, bits_count)
Performs dithering on the current image.
Parameters:
Parameter | Type | Description |
---|---|---|
dithering_method | DitheringMethod | The dithering method. |
bits_count | int | The final bits count for dithering. |
Method: dither(dithering_method, bits_count, custom_palette)
dither(dithering_method, bits_count, custom_palette)
Performs dithering on the current image.
Parameters:
Parameter | Type | Description |
---|---|---|
dithering_method | DitheringMethod | The dithering method. |
bits_count | int | The final bits count for dithering. |
custom_palette | IColorPalette | The custom palette for dithering. |
Method: filter(rectangle, options)
filter(rectangle, options)
Filters the specified rectangle.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle. |
options | FilterOptionsBase | The options. |
Method: get_argb_32_pixel(x, y)
get_argb_32_pixel(x, y)
Gets an image 32-bit ARGB pixel.
Parameters:
Parameter | Type | Description |
---|---|---|
x | int | The pixel x location. |
y | int | The pixel y location. |
Returns
Type | Description |
---|---|
int | The 32-bit ARGB pixel for the specified location. |
Method: get_default_argb_32_pixels(rectangle)
get_default_argb_32_pixels(rectangle)
Gets the default 32-bit ARGB pixels array.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to get pixels for. |
Returns
Type | Description |
---|---|
int | The default pixels array. |
Method: get_default_options(args)
get_default_options(args)
Gets the default options.
Parameters:
Parameter | Type | Description |
---|---|---|
args | object | The arguments. |
Returns
Type | Description |
---|---|
ImageOptionsBase | Default options |
Method: get_default_pixels(rectangle, partial_pixel_loader)
get_default_pixels(rectangle, partial_pixel_loader)
Gets the default pixels array using partial pixel loader.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to get pixels for. |
partial_pixel_loader | IPartialArgb32PixelLoader | The partial pixel loader. |
Method: get_default_raw_data(rectangle, partial_raw_data_loader, raw_data_settings)
get_default_raw_data(rectangle, partial_raw_data_loader, raw_data_settings)
Gets the default raw data array using partial pixel loader.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to get pixels for. |
partial_raw_data_loader | IPartialRawDataLoader | The partial raw data loader. |
raw_data_settings | RawDataSettings | The raw data settings. |
Method: get_default_raw_data(rectangle, raw_data_settings)
get_default_raw_data(rectangle, raw_data_settings)
Gets the default raw data array.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to get raw data for. |
raw_data_settings | RawDataSettings | The raw data settings. |
Returns
Type | Description |
---|---|
byte | The default raw data array. |
Method: get_file_format(file_path) [static]
get_file_format(file_path)
Gets the file format.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path. |
Returns
Type | Description |
---|---|
FileFormat | The determined file format. |
Method: get_file_format(stream) [static]
get_file_format(stream)
Gets the file format.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream. |
Returns
Type | Description |
---|---|
FileFormat | The determined file format. |
Method: get_file_format_of_stream(stream) [static]
get_file_format_of_stream(stream)
Gets the file format.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream. |
Returns
Type | Description |
---|---|
FileFormat | The determined file format. |
Method: get_fitting_rectangle(rectangle, pixels, width, height) [static]
get_fitting_rectangle(rectangle, pixels, width, height)
Gets rectangle which fits the current image.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to get fitting rectangle for. |
pixels | int | The 32-bit ARGB pixels. |
width | int | The object width. |
height | int | The object height. |
Returns
Type | Description |
---|---|
Rectangle | The fitting rectangle or exception if no fitting rectangle can be found. |
Method: get_fitting_rectangle(rectangle, width, height) [static]
get_fitting_rectangle(rectangle, width, height)
Gets rectangle which fits the current image.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to get fitting rectangle for. |
width | int | The object width. |
height | int | The object height. |
Returns
Type | Description |
---|---|
Rectangle | The fitting rectangle or exception if no fitting rectangle can be found. |
Method: get_modify_date(use_default)
get_modify_date(use_default)
Retrieves the date and time when the resource image underwent its latest
modification. This method provides valuable metadata, enabling users to track and
manage updates to the image file effectively. By accessing this information, users
can ensure the integrity and currency of their image assets, facilitating informed
decision-making regarding image usage and maintenance.
Parameters:
Parameter | Type | Description |
---|---|---|
use_default | bool | if set to |
Returns
Type | Description |
---|---|
datetime | The date and time the resource image was last modified. |
Method: get_original_options()
get_original_options()
Gets the options based on the original file settings.
This can be helpful to keep bit-depth and other parameters of the original image unchanged.
For example, if we load a black-white PNG image with 1 bit per pixel and then save it using the
DataStreamSupporter.save(file_path) method, the output PNG image with 8-bit per pixel will be produced.
To avoid it and save PNG image with 1-bit per pixel, use this method to get corresponding saving options and pass them
to the Image.save(file_path, options) method as the second parameter.
Returns
Type | Description |
---|---|
ImageOptionsBase | The options based on the original file settings. |
Method: get_pixel(x, y)
get_pixel(x, y)
Gets an image pixel.
Parameters:
Parameter | Type | Description |
---|---|---|
x | int | The pixel x location. |
y | int | The pixel y location. |
Returns
Type | Description |
---|---|
Color | The pixel color for the specified location. |
Method: get_proportional_height(width, height, new_width) [static]
get_proportional_height(width, height, new_width)
Gets a proportional height.
Parameters:
Parameter | Type | Description |
---|---|---|
width | int | The width. |
height | int | The height. |
new_width | int | The new width. |
Returns
Type | Description |
---|---|
int | The proportional height. |
Method: get_proportional_width(width, height, new_height) [static]
get_proportional_width(width, height, new_height)
Gets a proportional width.
Parameters:
Parameter | Type | Description |
---|---|---|
width | int | The width. |
height | int | The height. |
new_height | int | The new height. |
Returns
Type | Description |
---|---|
int | The proportional width. |
Method: get_serialized_stream(image_options, clipping_rectangle, page_number)
get_serialized_stream(image_options, clipping_rectangle, page_number)
Converts to aps.
Parameters:
Parameter | Type | Description |
---|---|---|
image_options | ImageOptionsBase | The image options. |
clipping_rectangle | Rectangle | The clipping rectangle. |
page_number | int[] | The page number. |
Returns
Type | Description |
---|---|
_io.BufferedRandom | The serialized stream |
Method: get_skew_angle()
get_skew_angle()
Gets the skew angle.
This method is applicable to scanned text documents, to determine the skew angle when scanning.
Returns
Type | Description |
---|---|
float | The skew angle, in degrees. |
Method: load(file_path) [static]
load(file_path)
Loads a new image from the specified file path or URL.
If filePath is a file path the method just opens the file.
If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path or URL to load image from. |
Returns
Type | Description |
---|---|
Image | The loaded image. |
Method: load(file_path, load_options) [static]
load(file_path, load_options)
Loads a new image from the specified file path or URL.
If filePath is a file path the method just opens the file.
If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path or URL to load image from. |
load_options | LoadOptions | The load options. |
Returns
Type | Description |
---|---|
Image | The loaded image. |
Method: load(stream) [static]
load(stream)
Loads a new image from the specified stream.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load image from. |
Returns
Type | Description |
---|---|
Image | The loaded image. |
Method: load(stream, load_options) [static]
load(stream, load_options)
Loads a new image from the specified stream.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load image from. |
load_options | LoadOptions | The load options. |
Returns
Type | Description |
---|---|
Image | The loaded image. |
Method: load_argb_32_pixels(rectangle)
load_argb_32_pixels(rectangle)
Loads 32-bit ARGB pixels.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to load pixels from. |
Returns
Type | Description |
---|---|
int | The loaded 32-bit ARGB pixels array. |
Method: load_argb_64_pixels(rectangle)
load_argb_64_pixels(rectangle)
Loads 64-bit ARGB pixels.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to load pixels from. |
Returns
Type | Description |
---|---|
long | The loaded 64-bit ARGB pixels array. |
Method: load_cmyk_32_pixels(rectangle)
load_cmyk_32_pixels(rectangle)
Loads pixels in CMYK format.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to load pixels from. |
Returns
Type | Description |
---|---|
int | The loaded CMYK pixels presentes as 32-bit inateger values. |
Method: load_cmyk_pixels(rectangle)
load_cmyk_pixels(rectangle)
Loads pixels in CMYK format.
This method is deprecated. Please use more effective the RasterImage.load_cmyk_32_pixels(rectangle) method.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to load pixels from. |
Returns
Type | Description |
---|---|
CmykColor[] | The loaded CMYK pixels array. |
Method: load_partial_argb_32_pixels(rectangle, partial_pixel_loader)
load_partial_argb_32_pixels(rectangle, partial_pixel_loader)
Loads 32-bit ARGB pixels partially (by blocks).
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to load pixels from. |
partial_pixel_loader | IPartialArgb32PixelLoader | The partial pixel loader. |
Method: load_partial_argb_64_pixels(rectangle, partial_pixel_loader)
load_partial_argb_64_pixels(rectangle, partial_pixel_loader)
Loads 64-bit ARGB pixels partially by packs.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The desired rectangle. |
partial_pixel_loader | IPartialArgb64PixelLoader | The 64-bit ARGB pixel loader. |
Method: load_partial_pixels(desired_rectangle, pixel_loader)
load_partial_pixels(desired_rectangle, pixel_loader)
Loads pixels partially by packs.
Parameters:
Parameter | Type | Description |
---|---|---|
desired_rectangle | Rectangle | The desired rectangle. |
pixel_loader | IPartialPixelLoader | The pixel loader. |
Method: load_pixels(rectangle)
load_pixels(rectangle)
Loads pixels.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to load pixels from. |
Returns
Type | Description |
---|---|
Color[] | The loaded pixels array. |
Method: load_raw_data(rectangle, dest_image_bounds, raw_data_settings, raw_data_loader)
load_raw_data(rectangle, dest_image_bounds, raw_data_settings, raw_data_loader)
Loads raw data.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to load raw data from. |
dest_image_bounds | Rectangle | The dest image bounds. |
raw_data_settings | RawDataSettings | The raw data settings to use for loaded data. Note if data is not in the format specified then data conversion will be performed. |
raw_data_loader | IPartialRawDataLoader | The raw data loader. |
Method: load_raw_data(rectangle, raw_data_settings, raw_data_loader)
load_raw_data(rectangle, raw_data_settings, raw_data_loader)
Loads raw data.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to load raw data from. |
raw_data_settings | RawDataSettings | The raw data settings to use for loaded data. Note if data is not in the format specified then data conversion will be performed. |
raw_data_loader | IPartialRawDataLoader | The raw data loader. |
Method: load_stream(stream) [static]
load_stream(stream)
Loads a new image from the specified stream.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load image from. |
Returns
Type | Description |
---|---|
Image | The loaded image. |
Method: load_stream_with_options(stream, load_options) [static]
load_stream_with_options(stream, load_options)
Loads a new image from the specified stream.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to load image from. |
load_options | LoadOptions | The load options. |
Returns
Type | Description |
---|---|
Image | The loaded image. |
Method: load_with_options(file_path, load_options) [static]
load_with_options(file_path, load_options)
Loads a new image from the specified file path or URL.
If filePath is a file path the method just opens the file.
If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path or URL to load image from. |
load_options | LoadOptions | The load options. |
Returns
Type | Description |
---|---|
Image | The loaded image. |
Method: normalize_angle(resize_proportionally, background_color)
normalize_angle(resize_proportionally, background_color)
Normalizes the angle.
This method is applicable to scanned text documents to get rid of the skewed scan.
This method uses RasterImage.get_skew_angle() and RasterImage.rotate(angle, resize_proportionally, background_color) methods.
Parameters:
Parameter | Type | Description |
---|---|---|
resize_proportionally | bool | if set to |
background_color | Color | Color of the background. |
Method: read_argb_32_scan_line(scan_line_index)
read_argb_32_scan_line(scan_line_index)
Reads the whole scan line by the specified scan line index.
Parameters:
Parameter | Type | Description |
---|---|---|
scan_line_index | int | Zero based index of the scan line. |
Returns
Type | Description |
---|---|
int | The scan line 32-bit ARGB color values array. |
Method: read_scan_line(scan_line_index)
read_scan_line(scan_line_index)
Reads the whole scan line by the specified scan line index.
Parameters:
Parameter | Type | Description |
---|---|---|
scan_line_index | int | Zero based index of the scan line. |
Returns
Type | Description |
---|---|
Color[] | The scan line pixel color values array. |
Method: replace_argb(old_color_argb, old_color_diff, new_color_argb)
replace_argb(old_color_argb, old_color_diff, new_color_argb)
Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.
Parameters:
Parameter | Type | Description |
---|---|---|
old_color_argb | int | Old color ARGB value to be replaced. |
old_color_diff | byte | Allowed difference in old color to be able to widen replaced color tone. |
new_color_argb | int | New color ARGB value to replace old color with. |
Method: replace_color(old_color, old_color_diff, new_color)
replace_color(old_color, old_color_diff, new_color)
Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.
Parameters:
Parameter | Type | Description |
---|---|---|
old_color | Color | Old color to be replaced. |
old_color_diff | byte | Allowed difference in old color to be able to widen replaced color tone. |
new_color | Color | New color to replace old color with. |
Method: replace_color(old_color_argb, old_color_diff, new_color_argb)
replace_color(old_color_argb, old_color_diff, new_color_argb)
Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.
Parameters:
Parameter | Type | Description |
---|---|---|
old_color_argb | int | Old color ARGB value to be replaced. |
old_color_diff | byte | Allowed difference in old color to be able to widen replaced color tone. |
new_color_argb | int | New color ARGB value to replace old color with. |
Method: replace_non_transparent_colors(new_color)
replace_non_transparent_colors(new_color)
Replaces all non-transparent colors with new color and preserves original alpha value to save smooth edges.
Note: if you use it on images without transparency, all colors will be replaced with a single one.
Parameters:
Parameter | Type | Description |
---|---|---|
new_color | Color | New color to replace non transparent colors with. |
Method: replace_non_transparent_colors(new_color_argb)
replace_non_transparent_colors(new_color_argb)
Replaces all non-transparent colors with new color and preserves original alpha value to save smooth edges.
Note: if you use it on images without transparency, all colors will be replaced with a single one.
Parameters:
Parameter | Type | Description |
---|---|---|
new_color_argb | int | New color ARGB value to replace non transparent colors with. |
Method: resize(new_width, new_height)
resize(new_width, new_height)
Resizes the image. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used.
Parameters:
Parameter | Type | Description |
---|---|---|
new_width | int | The new width. |
new_height | int | The new height. |
Method: resize(new_width, new_height, resize_type)
resize(new_width, new_height, resize_type)
Resizes the image.
Parameters:
Parameter | Type | Description |
---|---|---|
new_width | int | The new width. |
new_height | int | The new height. |
resize_type | ResizeType | The resize type. |
Method: resize(new_width, new_height, settings)
resize(new_width, new_height, settings)
Resizes the image.
Parameters:
Parameter | Type | Description |
---|---|---|
new_width | int | The new width. |
new_height | int | The new height. |
settings | ImageResizeSettings | The resize settings. |
Method: resize_by_settings(new_width, new_height, settings)
resize_by_settings(new_width, new_height, settings)
Resizes the image.
Parameters:
Parameter | Type | Description |
---|---|---|
new_width | int | The new width. |
new_height | int | The new height. |
settings | ImageResizeSettings | The resize settings. |
Method: resize_by_type(new_width, new_height, resize_type)
resize_by_type(new_width, new_height, resize_type)
Resizes the image.
Parameters:
Parameter | Type | Description |
---|---|---|
new_width | int | The new width. |
new_height | int | The new height. |
resize_type | ResizeType | The resize type. |
Method: resize_height_proportionally(new_height)
resize_height_proportionally(new_height)
Resizes the height proportionally. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used.
Parameters:
Parameter | Type | Description |
---|---|---|
new_height | int | The new height. |
Method: resize_height_proportionally(new_height, resize_type)
resize_height_proportionally(new_height, resize_type)
Resizes the height proportionally.
Parameters:
Parameter | Type | Description |
---|---|---|
new_height | int | The new height. |
resize_type | ResizeType | Type of the resize. |
Method: resize_height_proportionally(new_height, settings)
resize_height_proportionally(new_height, settings)
Resizes the height proportionally.
Parameters:
Parameter | Type | Description |
---|---|---|
new_height | int | The new height. |
settings | ImageResizeSettings | The image resize settings. |
Method: resize_height_proportionally_settings(new_height, settings)
resize_height_proportionally_settings(new_height, settings)
Resizes the height proportionally.
Parameters:
Parameter | Type | Description |
---|---|---|
new_height | int | The new height. |
settings | ImageResizeSettings | The image resize settings. |
Method: resize_width_proportionally(new_width)
resize_width_proportionally(new_width)
Resizes the width proportionally. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used.
Parameters:
Parameter | Type | Description |
---|---|---|
new_width | int | The new width. |
Method: resize_width_proportionally(new_width, resize_type)
resize_width_proportionally(new_width, resize_type)
Resizes the width proportionally.
Parameters:
Parameter | Type | Description |
---|---|---|
new_width | int | The new width. |
resize_type | ResizeType | Type of the resize. |
Method: resize_width_proportionally(new_width, settings)
resize_width_proportionally(new_width, settings)
Resizes the width proportionally.
Parameters:
Parameter | Type | Description |
---|---|---|
new_width | int | The new width. |
settings | ImageResizeSettings | The image resize settings. |
Method: resize_width_proportionally_settings(new_width, settings)
resize_width_proportionally_settings(new_width, settings)
Resizes the width proportionally.
Parameters:
Parameter | Type | Description |
---|---|---|
new_width | int | The new width. |
settings | ImageResizeSettings | The image resize settings. |
Method: rotate(angle)
rotate(angle)
Rotate image around the center.
Parameters:
Parameter | Type | Description |
---|---|---|
angle | float | The rotate angle in degrees. Positive values will rotate clockwise. |
Method: rotate(angle, resize_proportionally, background_color)
rotate(angle, resize_proportionally, background_color)
Rotate image around the center.
Parameters:
Parameter | Type | Description |
---|---|---|
angle | float | The rotate angle in degrees. Positive values will rotate clockwise. |
resize_proportionally | bool | if set to |
background_color | Color | Color of the background. |
Method: rotate_flip(rotate_flip_type)
rotate_flip(rotate_flip_type)
Rotates, flips, or rotates and flips the image.
Parameters:
Parameter | Type | Description |
---|---|---|
rotate_flip_type | RotateFlipType | The rotate flip type. |
Method: save(file_path)
save(file_path)
Saves the image to the specified file location.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path to save the image to. |
Method: save(file_path, options)
save(file_path, options)
Saves the object’s data to the specified file location in the specified file format according to save options.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path. |
options | ImageOptionsBase | The options. |
Method: save(file_path, options, bounds_rectangle)
save(file_path, options, bounds_rectangle)
Saves the object’s data to the specified file location in the specified file format according to save options.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path. |
options | ImageOptionsBase | The options. |
bounds_rectangle | Rectangle | The destination image bounds rectangle. Set the empty rectangle for use sourse bounds. |
Method: save(file_path, over_write)
save(file_path, over_write)
Saves the object’s data to the specified file location.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path to save the object’s data to. |
over_write | bool | if set to |
Method: save(stream)
save(stream)
Saves the object’s data to the specified stream.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to save the object’s data to. |
Method: save(stream, options_base)
save(stream, options_base)
Saves the image’s data to the specified stream in the specified file format according to save options.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to save the image’s data to. |
options_base | ImageOptionsBase | The save options. |
Method: save(stream, options_base, bounds_rectangle)
save(stream, options_base, bounds_rectangle)
Saves the image’s data to the specified stream in the specified file format according to save options.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to save the image’s data to. |
options_base | ImageOptionsBase | The save options. |
bounds_rectangle | Rectangle | The destination image bounds rectangle. Set the empty rectangle for use source bounds. |
Method: save_argb_32_pixels(rectangle, pixels)
save_argb_32_pixels(rectangle, pixels)
Saves the 32-bit ARGB pixels.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to save pixels to. |
pixels | int | The 32-bit ARGB pixels array. |
Method: save_cmyk_32_pixels(rectangle, pixels)
save_cmyk_32_pixels(rectangle, pixels)
Saves the pixels.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to save pixels to. |
pixels | int | The CMYK pixels presented as the 32-bit integer values. |
Method: save_cmyk_pixels(rectangle, pixels)
save_cmyk_pixels(rectangle, pixels)
Saves the pixels.
This method is deprecated. Please use more effective the RasterImage.save_cmyk_32_pixels(rectangle, pixels) method.
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to save pixels to. |
pixels | CmykColor[] | The CMYK pixels array. |
Method: save_pixels(rectangle, pixels)
save_pixels(rectangle, pixels)
Saves pixels (format specific method).
Parameters:
Parameter | Type | Description |
---|---|---|
rectangle | Rectangle | The rectangle to save pixels to. |
pixels | Color[] | The 32-bit ARGB pixels array. |
Method: save_raw_data(data, data_offset, rectangle, raw_data_settings)
save_raw_data(data, data_offset, rectangle, raw_data_settings)
Saves the raw data.
Parameters:
Parameter | Type | Description |
---|---|---|
data | byte | The raw data. |
data_offset | int | The starting raw data offset. |
rectangle | Rectangle | The raw data rectangle. |
raw_data_settings | RawDataSettings | The raw data settings the data is in. |
Method: save_to_stream(stream)
save_to_stream(stream)
Saves the object’s data to the specified stream.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to save the object’s data to. |
Method: save_to_stream_with_options(stream, options_base)
save_to_stream_with_options(stream, options_base)
Saves the image’s data to the specified stream in the specified file format according to save options.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to save the image’s data to. |
options_base | ImageOptionsBase | The save options. |
Method: save_to_stream_with_options_rect(stream, options_base, bounds_rectangle)
save_to_stream_with_options_rect(stream, options_base, bounds_rectangle)
Saves the image’s data to the specified stream in the specified file format according to save options.
Parameters:
Parameter | Type | Description |
---|---|---|
stream | _io.BufferedRandom | The stream to save the image’s data to. |
options_base | ImageOptionsBase | The save options. |
bounds_rectangle | Rectangle | The destination image bounds rectangle. Set the empty rectangle for use source bounds. |
Method: save_with_options(file_path, options)
save_with_options(file_path, options)
Saves the object’s data to the specified file location in the specified file format according to save options.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path. |
options | ImageOptionsBase | The options. |
Method: save_with_options_rect(file_path, options, bounds_rectangle)
save_with_options_rect(file_path, options, bounds_rectangle)
Saves the object’s data to the specified file location in the specified file format according to save options.
Parameters:
Parameter | Type | Description |
---|---|---|
file_path | string | The file path. |
options | ImageOptionsBase | The options. |
bounds_rectangle | Rectangle | The destination image bounds rectangle. Set the empty rectangle for use sourse bounds. |
Method: set_argb_32_pixel(x, y, argb_32_color)
set_argb_32_pixel(x, y, argb_32_color)
Sets an image 32-bit ARGB pixel for the specified position.
Parameters:
Parameter | Type | Description |
---|---|---|
x | int | The pixel x location. |
y | int | The pixel y location. |
argb_32_color | int | The 32-bit ARGB pixel for the specified position. |
Method: set_palette(palette, update_colors)
set_palette(palette, update_colors)
Sets the image palette.
Parameters:
Parameter | Type | Description |
---|---|---|
palette | IColorPalette | The palette to set. |
update_colors | bool | if set to |
Method: set_pixel(x, y, color)
set_pixel(x, y, color)
Sets an image pixel for the specified position.
Parameters:
Parameter | Type | Description |
---|---|---|
x | int | The pixel x location. |
y | int | The pixel y location. |
color | Color | The pixel color for the specified position. |
Method: set_resolution(dpi_x, dpi_y)
set_resolution(dpi_x, dpi_y)
Establishes the resolution for the specified RasterImage, ensuring
accurate scaling and printing capabilities. This method empowers users to tailor
the image resolution to suit their specific requirements, whether for digital
display or physical reproduction. By setting the resolution, users can optimize
image quality and ensure compatibility with various output devices and mediums,
enhancing the overall visual experience and usability of the image.
Parameters:
Parameter | Type | Description |
---|---|---|
dpi_x | double | The horizontal resolution, in dots per inch, of the RasterImage. |
dpi_y | double | The vertical resolution, in dots per inch, of the RasterImage. |
Method: write_argb_32_scan_line(scan_line_index, argb_32_pixels)
write_argb_32_scan_line(scan_line_index, argb_32_pixels)
Writes the whole scan line to the specified scan line index.
Parameters:
Parameter | Type | Description |
---|---|---|
scan_line_index | int | Zero based index of the scan line. |
argb_32_pixels | int | The 32-bit ARGB colors array to write. |
Method: write_scan_line(scan_line_index, pixels)
write_scan_line(scan_line_index, pixels)
Writes the whole scan line to the specified scan line index.
Parameters:
Parameter | Type | Description |
---|---|---|
scan_line_index | int | Zero based index of the scan line. |
pixels | Color[] | The pixel colors array to write. |
Examples
The example shows how to load a JpegImage from a file.
from aspose.imaging.fileformats.jpeg import JpegImage
# Load a JPEG image from a file.
with JpegImage("sample.jpg") as jpegImage:
# Do some image processing.
# Save to another JPEG file.
jpegImage.save("sample.output.jpg")
The following example shows how to create JPEG image of the specified size.
from aspose.imaging.fileformats.jpeg import JpegImage
# Create a JPEG image of 100x100 px.
with JpegImage(100, 100) as jpegImage:
# Do some image processing.
# Save to a file.
jpegImage.save("output.jpg")
Access camera manufacturer maker notes in Jpeg image.
from aspose.pycore import as_of
from aspose.imaging import Image
from aspose.imaging.fileformats.jpeg import JpegImage
with as_of(Image.load("Sample.jpg"), JpegImage) as image:
for makerNote in image.exif_data.maker_notes:
print(f"Name = {makerNote.name}, Value = {makerNote.value}")