ImageMasking

Inheritance: java.lang.Object

public class ImageMasking

提供图像遮罩操作

构造函数

构造函数	描述
ImageMasking(RasterImage sourceImage)	初始化 ImageMasking 类的新实例。

方法

方法	描述
applyMask(RasterImage targetImage, RasterImage mask, MaskingOptions maskingOptions)	将掩码应用于指定的源图像。
decompose(MaskingOptions options)	使用指定的掩码选项执行分解操作
decomposeAsync(MaskingOptions options)	使用指定的掩码选项创建异步分解任务。
createSession(MaskingOptions options)	创建可执行再训练分解操作的掩码会话。
loadSession(InputStream stream)	从指定的流加载会话。
loadSession(System.IO.Stream stream)
loadSession(String filePath)	从指定文件加载会话。

Example: This example shows how to decompose a raster image into multiple images using image masking and the K-means segmentation algorithm.

此示例展示如何使用图像掩码和 K-means 分割算法将光栅图像分解为多个图像。图像掩码是一种用于将背景与前景图像对象分离的图像处理技术。

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

com.aspose.imaging.RasterImage image = (com.aspose.imaging.RasterImage) com.aspose.imaging.Image.load(dir + "Blue hills.png");
try {
    com.aspose.imaging.masking.options.AutoMaskingArgs args = new com.aspose.imaging.masking.options.AutoMaskingArgs();

    // 设置簇的数量（分离的对象）。默认值为 2，即前景对象和背景。
    args.setNumberOfObjects(3);

    // 设置最大迭代次数。
    args.setMaxIterationNumber(50);

    // 设置分割方法的精度（可选）。
    args.setPrecision(1);

    // 每个簇（段）将存储为单独的 PNG 文件。
    com.aspose.imaging.imageoptions.PngOptions exportOptions = new com.aspose.imaging.imageoptions.PngOptions();
    exportOptions.setColorType(com.aspose.imaging.fileformats.png.PngColorType.TruecolorWithAlpha);
    exportOptions.setSource(new com.aspose.imaging.sources.StreamSource(new java.io.ByteArrayInputStream(new byte[0])));

    com.aspose.imaging.masking.options.MaskingOptions maskingOptions = new com.aspose.imaging.masking.options.MaskingOptions();

    // 使用 K-means 聚类。
    // K-means 聚类可以将图像拆分为多个独立的簇（段）。
    maskingOptions.setMethod(com.aspose.imaging.masking.options.SegmentationMethod.KMeans);
    maskingOptions.setDecompose(true);
    maskingOptions.setArgs(args);

    // 背景颜色将为橙色。
    maskingOptions.setBackgroundReplacementColor(com.aspose.imaging.Color.getOrange());
    maskingOptions.setExportOptions(exportOptions);

    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image);

    // 将源图像划分为多个簇（段）。
    com.aspose.imaging.masking.result.MaskingResult maskingResults = masking.decompose(maskingOptions);
    try
    {
        // 从掩码结果获取图像并保存为 PNG。
        for (int i = 0; i < maskingResults.getLength(); i++) {
            final IMaskingLayer resultsItem = maskingResults.get_Item(i);
            String outputFileName = String.format("Blue hills.Segment%s.png", resultsItem.getObjectNumber());
            Image resultImage = resultsItem.getImage();
            try {
                resultImage.save(dir + outputFileName);
            } finally {
                resultImage.close();
            }
        }
    }
    finally
    {
        maskingResults.close();
    }
} finally {
    image.close();
}

Example: Using a segment mask to speed up the segmentation process

// 遮罩导出选项
com.aspose.imaging.imageoptions.PngOptions exportOptions = new com.aspose.imaging.imageoptions.PngOptions();
exportOptions.setColorType(com.aspose.imaging.fileformats.png.PngColorType.TruecolorWithAlpha);
exportOptions.setSource(new com.aspose.imaging.sources.StreamSource());

com.aspose.imaging.masking.options.MaskingOptions maskingOptions = new com.aspose.imaging.masking.options.MaskingOptions();

// 使用 GraphCut 聚类。
maskingOptions.setMethod(com.aspose.imaging.masking.options.SegmentationMethod.GraphCut);
maskingOptions.setDecompose(false);
maskingOptions.setArgs(new com.aspose.imaging.masking.options.AutoMaskingArgs());

// 背景颜色将是透明的。
maskingOptions.setBackgroundReplacementColor(com.aspose.imaging.Color.getTransparent());
maskingOptions.setExportOptions(exportOptions);

String dir = "c:\\temp\\";
com.aspose.imaging.RasterImage image = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "BigImage.jpg");
try
{
    com.aspose.imaging.Size imageSize = image.getSize();

    // 减小图像尺寸以加快分割过程
    image.resizeHeightProportionally(600, com.aspose.imaging.ResizeType.HighQualityResample);

    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image);

    // 将源图像划分为多个簇（段）。
    com.aspose.imaging.masking.result.MaskingResult maskingResult = masking.decompose(maskingOptions);
    try
    {
        // 获取前景掩码
        com.aspose.imaging.RasterImage foregroundMask = maskingResult.get_Item(1).getMask();
        try
        {
            // 将掩码的大小增加到原始图像的尺寸
            foregroundMask.resize(imageSize.getWidth(), imageSize.getHeight(), com.aspose.imaging.ResizeType.NearestNeighbourResample);

            // 将掩码应用于原始图像以获得前景段
            com.aspose.imaging.RasterImage originImage = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "BigImage.jpg");
            try
            {
                com.aspose.imaging.masking.ImageMasking.applyMask(originImage, foregroundMask, maskingOptions);
                originImage.save(dir + "BigImage_foreground.png", exportOptions);
            }
            finally
            {
                originImage.close();
            }
        }
        finally
        {
            foregroundMask.close();
        }
    }
    finally
    {
        maskingResult.close();
    }
}
finally
{
    image.close();
}

Example: Saving the masking session to a file for long sessions, as well as for the possibility of resuming the session in another environment.

String dir = "c:\\temp\\";
String sessionBackupFile = dir + "session.bak";

// 遮罩导出选项
com.aspose.imaging.imageoptions.PngOptions exportOptions = new com.aspose.imaging.imageoptions.PngOptions();
exportOptions.setColorType(com.aspose.imaging.fileformats.png.PngColorType.TruecolorWithAlpha);
exportOptions.setSource(new com.aspose.imaging.sources.StreamSource());

com.aspose.imaging.masking.options.MaskingOptions maskingOptions = new com.aspose.imaging.masking.options.MaskingOptions();

// 使用 GraphCut 聚类。
maskingOptions.setMethod(com.aspose.imaging.masking.options.SegmentationMethod.GraphCut);
maskingOptions.setDecompose(false);
maskingOptions.setArgs(new com.aspose.imaging.masking.options.AutoMaskingArgs());

// 背景颜色将为橙色。
maskingOptions.setBackgroundReplacementColor(com.aspose.imaging.Color.getOrange());
maskingOptions.setExportOptions(exportOptions);

// 首次启动会话并保存到文件
com.aspose.imaging.RasterImage image = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "Gorilla.bmp");
try
{
    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image);

    com.aspose.imaging.masking.IMaskingSession session = masking.createSession(maskingOptions);
    try
    {
        com.aspose.imaging.masking.result.MaskingResult maskingResult = session.decompose();
        try
        {
            com.aspose.imaging.RasterImage segmentImage = maskingResult.get_Item(1).getImage();
            try
            {
                segmentImage.save(dir + "step1.png");
            }
            finally
            {
                segmentImage.close();
            }
        }
        finally
        {
            maskingResult.close();
        }

        session.save(sessionBackupFile);
    }
    finally
    {
        session.dispose();
    }
}
finally
{
    image.close();
}

// 从文件恢复掩码会话
com.aspose.imaging.RasterImage image2 = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "Gorilla.bmp");
try
{
    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image2);

    com.aspose.imaging.masking.IMaskingSession session = masking.loadSession(sessionBackupFile);
    try
    {
        com.aspose.imaging.masking.options.AutoMaskingArgs args = new com.aspose.imaging.masking.options.AutoMaskingArgs();

        // 对图像进行视觉分析并设置属于分离对象的点。
        args.setObjectsPoints(new Point[][]
                {
                        new Point[]
                                {
                                        new Point(0, 0), new Point(0, 1), new Point(1, 0),
                                        new Point(1, 1), new Point(2, 0), new Point(2, 1),
                                        new Point(3, 0), new Point(3, 1)
                                },
                });
        com.aspose.imaging.masking.result.MaskingResult maskingResult = session.improveDecomposition(args);
        try
        {
            // 显式传递导出选项，因为它不可序列化
            maskingResult.MaskingOptions.setExportOptions(exportOptions);

            com.aspose.imaging.RasterImage segmentImage = maskingResult.get_Item(1).getImage();
            try
            {
                segmentImage.save(dir + "step2.png");
            }
            finally
            {
                segmentImage.close();
            }
        }
        finally
        {
            maskingResult.close();
        }
    }
    finally
    {
        session.dispose();
    }
}
finally
{
    image2.close();
}

ImageMasking(RasterImage sourceImage)

public ImageMasking(RasterImage sourceImage)

初始化 ImageMasking 类的新实例。

Parameters:

参数	类型	描述
sourceImage	RasterImage	源图像。

Example: Using a segment mask to speed up the segmentation process

// 遮罩导出选项
com.aspose.imaging.imageoptions.PngOptions exportOptions = new com.aspose.imaging.imageoptions.PngOptions();
exportOptions.setColorType(com.aspose.imaging.fileformats.png.PngColorType.TruecolorWithAlpha);
exportOptions.setSource(new com.aspose.imaging.sources.StreamSource());

com.aspose.imaging.masking.options.MaskingOptions maskingOptions = new com.aspose.imaging.masking.options.MaskingOptions();

// 使用 GraphCut 聚类。
maskingOptions.setMethod(com.aspose.imaging.masking.options.SegmentationMethod.GraphCut);
maskingOptions.setDecompose(false);
maskingOptions.setArgs(new com.aspose.imaging.masking.options.AutoMaskingArgs());

// 背景颜色将是透明的。
maskingOptions.setBackgroundReplacementColor(com.aspose.imaging.Color.getTransparent());
maskingOptions.setExportOptions(exportOptions);

String dir = "c:\\temp\\";
com.aspose.imaging.RasterImage image = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "BigImage.jpg");
try
{
    com.aspose.imaging.Size imageSize = image.getSize();

    // 减小图像尺寸以加快分割过程
    image.resizeHeightProportionally(600, com.aspose.imaging.ResizeType.HighQualityResample);

    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image);

    // 将源图像划分为多个簇（段）。
    com.aspose.imaging.masking.result.MaskingResult maskingResult = masking.decompose(maskingOptions);
    try
    {
        // 获取前景掩码
        com.aspose.imaging.RasterImage foregroundMask = maskingResult.get_Item(1).getMask();
        try
        {
            // 将掩码的大小增加到原始图像的尺寸
            foregroundMask.resize(imageSize.getWidth(), imageSize.getHeight(), com.aspose.imaging.ResizeType.NearestNeighbourResample);

            // 将掩码应用于原始图像以获得前景段
            com.aspose.imaging.RasterImage originImage = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "BigImage.jpg");
            try
            {
                com.aspose.imaging.masking.ImageMasking.applyMask(originImage, foregroundMask, maskingOptions);
                originImage.save(dir + "BigImage_foreground.png", exportOptions);
            }
            finally
            {
                originImage.close();
            }
        }
        finally
        {
            foregroundMask.close();
        }
    }
    finally
    {
        maskingResult.close();
    }
}
finally
{
    image.close();
}

applyMask(RasterImage targetImage, RasterImage mask, MaskingOptions maskingOptions)

public static void applyMask(RasterImage targetImage, RasterImage mask, MaskingOptions maskingOptions)

将掩码应用于指定的源图像。

Parameters:

参数	类型	描述
targetImage	RasterImage	目标图像。
mask	RasterImage	要应用的掩码图像。
maskingOptions	MaskingOptions	掩码选项。

Example: Using a segment mask to speed up the segmentation process

// 遮罩导出选项
com.aspose.imaging.imageoptions.PngOptions exportOptions = new com.aspose.imaging.imageoptions.PngOptions();
exportOptions.setColorType(com.aspose.imaging.fileformats.png.PngColorType.TruecolorWithAlpha);
exportOptions.setSource(new com.aspose.imaging.sources.StreamSource());

com.aspose.imaging.masking.options.MaskingOptions maskingOptions = new com.aspose.imaging.masking.options.MaskingOptions();

// 使用 GraphCut 聚类。
maskingOptions.setMethod(com.aspose.imaging.masking.options.SegmentationMethod.GraphCut);
maskingOptions.setDecompose(false);
maskingOptions.setArgs(new com.aspose.imaging.masking.options.AutoMaskingArgs());

// 背景颜色将是透明的。
maskingOptions.setBackgroundReplacementColor(com.aspose.imaging.Color.getTransparent());
maskingOptions.setExportOptions(exportOptions);

String dir = "c:\\temp\\";
com.aspose.imaging.RasterImage image = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "BigImage.jpg");
try
{
    com.aspose.imaging.Size imageSize = image.getSize();

    // 减小图像尺寸以加快分割过程
    image.resizeHeightProportionally(600, com.aspose.imaging.ResizeType.HighQualityResample);

    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image);

    // 将源图像划分为多个簇（段）。
    com.aspose.imaging.masking.result.MaskingResult maskingResult = masking.decompose(maskingOptions);
    try
    {
        // 获取前景掩码
        com.aspose.imaging.RasterImage foregroundMask = maskingResult.get_Item(1).getMask();
        try
        {
            // 将掩码的大小增加到原始图像的尺寸
            foregroundMask.resize(imageSize.getWidth(), imageSize.getHeight(), com.aspose.imaging.ResizeType.NearestNeighbourResample);

            // 将掩码应用于原始图像以获得前景段
            com.aspose.imaging.RasterImage originImage = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "BigImage.jpg");
            try
            {
                com.aspose.imaging.masking.ImageMasking.applyMask(originImage, foregroundMask, maskingOptions);
                originImage.save(dir + "BigImage_foreground.png", exportOptions);
            }
            finally
            {
                originImage.close();
            }
        }
        finally
        {
            foregroundMask.close();
        }
    }
    finally
    {
        maskingResult.close();
    }
}
finally
{
    image.close();
}

decompose(MaskingOptions options)

public final MaskingResult decompose(MaskingOptions options)

使用指定的掩码选项执行分解操作

Parameters:

参数	类型	描述
options	MaskingOptions	掩码选项。

Returns: MaskingResult - Result of masking operation as array of segment image providers.

Example: This example shows how to specify suggestions for image masking algorithm to improve precision of segmentation (clustering) method. 此示例展示如何为图像掩码算法指定建议，以提高分割（聚类）方法的精度。图像掩码是一种用于将背景与前景图像对象分离的图像处理技术。

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

com.aspose.imaging.RasterImage image = (com.aspose.imaging.RasterImage) com.aspose.imaging.Image.load(dir + "Gorilla.bmp");
try {
    com.aspose.imaging.masking.options.AutoMaskingArgs args = new com.aspose.imaging.masking.options.AutoMaskingArgs();

    // 建议 #1。
    // 对图像进行目视分析并设置感兴趣区域。分割结果将仅包含完全位于该区域内的对象。
    args.setObjectsRectangles(new com.aspose.imaging.Rectangle[]
            {
                    new com.aspose.imaging.Rectangle(86, 6, 270, 364),
            });

    // 建议 #2。
    // 对图像进行视觉分析并设置属于分离对象的点。
    args.setObjectsPoints(new com.aspose.imaging.Point[][]
            {
                    new com.aspose.imaging.Point[]{new com.aspose.imaging.Point(103, 326)},
                    new com.aspose.imaging.Point[]{new com.aspose.imaging.Point(280, 43)},
                    new com.aspose.imaging.Point[]{new com.aspose.imaging.Point(319, 86)},
            });

    // 每个簇（段）将存储为单独的 PNG 文件。
    com.aspose.imaging.imageoptions.PngOptions exportOptions = new com.aspose.imaging.imageoptions.PngOptions();
    exportOptions.setColorType(com.aspose.imaging.fileformats.png.PngColorType.TruecolorWithAlpha);
    exportOptions.setSource(new com.aspose.imaging.sources.StreamSource());

    com.aspose.imaging.masking.options.MaskingOptions maskingOptions = new com.aspose.imaging.masking.options.MaskingOptions();

    // 使用 GraphCut 聚类。
    maskingOptions.setMethod(com.aspose.imaging.masking.options.SegmentationMethod.GraphCut);
    maskingOptions.setDecompose(false);
    maskingOptions.setArgs(args);

    // 背景颜色将为橙色。
    maskingOptions.setBackgroundReplacementColor(com.aspose.imaging.Color.getOrange());
    maskingOptions.setExportOptions(exportOptions);

    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image);

    // 将源图像划分为多个簇（段）。
    com.aspose.imaging.masking.result.MaskingResult maskingResults = masking.decompose(maskingOptions);

    try
    {
        // 从掩码结果获取图像并保存为 PNG。
        for (int i = 0; i < maskingResults.getLength(); i++) {
            String outputFileName = String.format("Gorilla.Segment%s.png", maskingResults.get_Item(i).getObjectNumber());
            Image resultImage = maskingResults.get_Item(i).getImage();
            try {
                resultImage.save(dir + outputFileName);
            } finally {
                resultImage.close();
            }
        }
    }
    finally
    {
        maskingResults.close();
    }
} finally {
    image.close();
}

Example: Using a segment mask to speed up the segmentation process

// 遮罩导出选项
com.aspose.imaging.imageoptions.PngOptions exportOptions = new com.aspose.imaging.imageoptions.PngOptions();
exportOptions.setColorType(com.aspose.imaging.fileformats.png.PngColorType.TruecolorWithAlpha);
exportOptions.setSource(new com.aspose.imaging.sources.StreamSource());

com.aspose.imaging.masking.options.MaskingOptions maskingOptions = new com.aspose.imaging.masking.options.MaskingOptions();

// 使用 GraphCut 聚类。
maskingOptions.setMethod(com.aspose.imaging.masking.options.SegmentationMethod.GraphCut);
maskingOptions.setDecompose(false);
maskingOptions.setArgs(new com.aspose.imaging.masking.options.AutoMaskingArgs());

// 背景颜色将是透明的。
maskingOptions.setBackgroundReplacementColor(com.aspose.imaging.Color.getTransparent());
maskingOptions.setExportOptions(exportOptions);

String dir = "c:\\temp\\";
com.aspose.imaging.RasterImage image = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "BigImage.jpg");
try
{
    com.aspose.imaging.Size imageSize = image.getSize();

    // 减小图像尺寸以加快分割过程
    image.resizeHeightProportionally(600, com.aspose.imaging.ResizeType.HighQualityResample);

    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image);

    // 将源图像划分为多个簇（段）。
    com.aspose.imaging.masking.result.MaskingResult maskingResult = masking.decompose(maskingOptions);
    try
    {
        // 获取前景掩码
        com.aspose.imaging.RasterImage foregroundMask = maskingResult.get_Item(1).getMask();
        try
        {
            // 将掩码的大小增加到原始图像的尺寸
            foregroundMask.resize(imageSize.getWidth(), imageSize.getHeight(), com.aspose.imaging.ResizeType.NearestNeighbourResample);

            // 将掩码应用于原始图像以获得前景段
            com.aspose.imaging.RasterImage originImage = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "BigImage.jpg");
            try
            {
                com.aspose.imaging.masking.ImageMasking.applyMask(originImage, foregroundMask, maskingOptions);
                originImage.save(dir + "BigImage_foreground.png", exportOptions);
            }
            finally
            {
                originImage.close();
            }
        }
        finally
        {
            foregroundMask.close();
        }
    }
    finally
    {
        maskingResult.close();
    }
}
finally
{
    image.close();
}

decomposeAsync(MaskingOptions options)

public final IMaskingAsyncTask decomposeAsync(MaskingOptions options)

使用指定的掩码选项创建异步分解任务。

Parameters:

参数	类型	描述
options	MaskingOptions	掩码选项。

Returns: IMaskingAsyncTask - The asynchronous decompose task

createSession(MaskingOptions options)

public final IMaskingSession createSession(MaskingOptions options)

创建可执行再训练分解操作的掩码会话。

Parameters:

参数	类型	描述
options	MaskingOptions	选项。

Returns: IMaskingSession - the masking session which can perform retraining decompose operations.

Example: Saving the masking session to a file for long sessions, as well as for the possibility of resuming the session in another environment.

String dir = "c:\\temp\\";
String sessionBackupFile = dir + "session.bak";

// 遮罩导出选项
com.aspose.imaging.imageoptions.PngOptions exportOptions = new com.aspose.imaging.imageoptions.PngOptions();
exportOptions.setColorType(com.aspose.imaging.fileformats.png.PngColorType.TruecolorWithAlpha);
exportOptions.setSource(new com.aspose.imaging.sources.StreamSource());

com.aspose.imaging.masking.options.MaskingOptions maskingOptions = new com.aspose.imaging.masking.options.MaskingOptions();

// 使用 GraphCut 聚类。
maskingOptions.setMethod(com.aspose.imaging.masking.options.SegmentationMethod.GraphCut);
maskingOptions.setDecompose(false);
maskingOptions.setArgs(new com.aspose.imaging.masking.options.AutoMaskingArgs());

// 背景颜色将为橙色。
maskingOptions.setBackgroundReplacementColor(com.aspose.imaging.Color.getOrange());
maskingOptions.setExportOptions(exportOptions);

// 首次启动会话并保存到文件
com.aspose.imaging.RasterImage image = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "Gorilla.bmp");
try
{
    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image);

    com.aspose.imaging.masking.IMaskingSession session = masking.createSession(maskingOptions);
    try
    {
        com.aspose.imaging.masking.result.MaskingResult maskingResult = session.decompose();
        try
        {
            com.aspose.imaging.RasterImage segmentImage = maskingResult.get_Item(1).getImage();
            try
            {
                segmentImage.save(dir + "step1.png");
            }
            finally
            {
                segmentImage.close();
            }
        }
        finally
        {
            maskingResult.close();
        }

        session.save(sessionBackupFile);
    }
    finally
    {
        session.dispose();
    }
}
finally
{
    image.close();
}

// 从文件恢复掩码会话
com.aspose.imaging.RasterImage image2 = (com.aspose.imaging.RasterImage)com.aspose.imaging.Image.load(dir + "Gorilla.bmp");
try
{
    // 创建 ImageMasking 类的实例。
    com.aspose.imaging.masking.ImageMasking masking = new com.aspose.imaging.masking.ImageMasking(image2);

    com.aspose.imaging.masking.IMaskingSession session = masking.loadSession(sessionBackupFile);
    try
    {
        com.aspose.imaging.masking.options.AutoMaskingArgs args = new com.aspose.imaging.masking.options.AutoMaskingArgs();

        // 对图像进行视觉分析并设置属于分离对象的点。
        args.setObjectsPoints(new Point[][]
                {
                        new Point[]
                                {
                                        new Point(0, 0), new Point(0, 1), new Point(1, 0),
                                        new Point(1, 1), new Point(2, 0), new Point(2, 1),
                                        new Point(3, 0), new Point(3, 1)
                                },
                });
        com.aspose.imaging.masking.result.MaskingResult maskingResult = session.improveDecomposition(args);
        try
        {
            // 显式传递导出选项，因为它不可序列化
            maskingResult.MaskingOptions.setExportOptions(exportOptions);

            com.aspose.imaging.RasterImage segmentImage = maskingResult.get_Item(1).getImage();
            try
            {
                segmentImage.save(dir + "step2.png");
            }
            finally
            {
                segmentImage.close();
            }
        }
        finally
        {
            maskingResult.close();
        }
    }
    finally
    {
        session.dispose();
    }
}
finally
{
    image2.close();
}

loadSession(InputStream stream)

public final IMaskingSession loadSession(InputStream stream)

从指定的流加载会话。

Parameters:

参数	类型	描述
流	java.io.InputStream	流。

Returns: IMaskingSession - the masking session which can perform retraining decompose operations.

loadSession(System.IO.Stream stream)

public final IMaskingSession loadSession(System.IO.Stream stream)

Parameters:

参数	类型	描述
流	com.aspose.ms.System.IO.Stream

Returns: IMaskingSession

loadSession(String filePath)

public final IMaskingSession loadSession(String filePath)

从指定文件加载会话。

Parameters:

参数	类型	描述
filePath	java.lang.String	文件路径。

Returns: IMaskingSession - the masking session which can perform retraining decompose operations.