DitheringMethod

Inheritance: java.lang.Object, com.aspose.ms.System.ValueType, com.aspose.ms.System.Enum

public final class DitheringMethod extends System.Enum

Dithering method.

Fields

Field	Description
ThresholdDithering	Threshold dithering.
FloydSteinbergDithering	The Floyd-Steinberg dithering.

Example: The following example loads a raster image and performs threshold and floyd dithering using different palette depth.

String dir = "c:\\temp\\";

com.aspose.imaging.Image image = com.aspose.imaging.Image.load(dir + "sample.png");
try {
    com.aspose.imaging.RasterImage rasterImage = (com.aspose.imaging.RasterImage) image;

    // Perform threshold dithering using 4-bit color palette which contains 16 colors.
    // The more bits specified the higher quality and the bigger size of the output image.
    // Note that only 1-bit, 4-bit and 8-bit palettes are supported at the moment.
    rasterImage.dither(com.aspose.imaging.DitheringMethod.ThresholdDithering, 4);

    rasterImage.save(dir + "sample.ThresholdDithering4.png");
} finally {
    image.dispose();
}

image = com.aspose.imaging.Image.load(dir + "sample.png");
try {
    com.aspose.imaging.RasterImage rasterImage = (com.aspose.imaging.RasterImage) image;

    // Perform floyd dithering using 1-bit color palette which contains only 2 colors - black and white.
    // The more bits specified the higher quality and the bigger size of the output image.
    // Note that only 1-bit, 4-bit and 8-bit palettes are supported at the moment.
    rasterImage.dither(com.aspose.imaging.DitheringMethod.FloydSteinbergDithering, 1);

    rasterImage.save(dir + "sample.FloydSteinbergDithering1.png");
} finally {
    image.dispose();
}

ThresholdDithering

public static final int ThresholdDithering

Threshold dithering. Simplest and fastest dithering algorithm.

FloydSteinbergDithering

public static final int FloydSteinbergDithering

The Floyd-Steinberg dithering. A more complex dithering algorithm, uses nearest neighbors intensity values.