IMaskingSessionImproveDecomposition Method
Performs retraining decompose operation

Namespace: Aspose.Imaging.Masking
Assembly: Aspose.Imaging (in Aspose.Imaging.dll) Version: 21.04
Syntax
MaskingResult ImproveDecomposition(
	IMaskingArgs maskingArguments
)

Parameters

maskingArguments
Type: Aspose.Imaging.Masking.OptionsIMaskingArgs
The masking arguments.

Return Value

Type: MaskingResult
Result of masking operation as array of segment image providers.
Examples
Saving the masking session to a file for long sessions, as well as for the possibility of resuming the session in another environment.
[C#]

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

// Masking export options
Aspose.Imaging.ImageOptions.PngOptions exportOptions = new Aspose.Imaging.ImageOptions.PngOptions();
exportOptions.ColorType = Aspose.Imaging.FileFormats.Png.PngColorType.TruecolorWithAlpha;
exportOptions.Source = new Aspose.Imaging.Sources.StreamSource(new System.IO.MemoryStream());

Aspose.Imaging.Masking.Options.MaskingOptions maskingOptions = new Aspose.Imaging.Masking.Options.MaskingOptions();

// Use GraphCut clustering.
maskingOptions.Method = Masking.Options.SegmentationMethod.GraphCut;
maskingOptions.Decompose = false;
maskingOptions.Args = new Aspose.Imaging.Masking.Options.AutoMaskingArgs();

// The backgroung color will be orange.
maskingOptions.BackgroundReplacementColor = Aspose.Imaging.Color.Orange;
maskingOptions.ExportOptions = exportOptions;

// Starting a session for the first time and saving to a file
using (Aspose.Imaging.RasterImage image = (Aspose.Imaging.RasterImage)Aspose.Imaging.Image.Load(dir + "Gorilla.bmp"))
{
    // Create an instance of the ImageMasking class.
    Aspose.Imaging.Masking.ImageMasking masking = new Aspose.Imaging.Masking.ImageMasking(image);

    using (Aspose.Imaging.Masking.IMaskingSession session = masking.CreateSession(maskingOptions))
    {
        using (Aspose.Imaging.Masking.Result.MaskingResult maskingResult = session.Decompose())
        {
            using (Aspose.Imaging.RasterImage segmentImage = maskingResult[1].GetImage())
            {
                segmentImage.Save(dir + "step1.png");
            }
        }

        session.Save(sessionBackupFile);
    }
}

// Resuming a masking session from a file
using (Aspose.Imaging.RasterImage image = (Aspose.Imaging.RasterImage)Aspose.Imaging.Image.Load(dir + "Gorilla.bmp"))
{
    // Create an instance of the ImageMasking class.
    Aspose.Imaging.Masking.ImageMasking masking = new Aspose.Imaging.Masking.ImageMasking(image);

    using (Aspose.Imaging.Masking.IMaskingSession session = masking.LoadSession(sessionBackupFile))
    {
        Aspose.Imaging.Masking.Options.AutoMaskingArgs args = new Aspose.Imaging.Masking.Options.AutoMaskingArgs();

        // Analyze the image visually and set the points that belong to separated objects.
        args.ObjectsPoints = 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)
                                             },
                                     };
        using (Aspose.Imaging.Masking.Result.MaskingResult maskingResult = session.ImproveDecomposition(args))
        {
            // Explicit transfer of export options, since it is not serializable
            maskingResult.MaskingOptions.ExportOptions = exportOptions;

            using (Aspose.Imaging.RasterImage segmentImage = maskingResult[1].GetImage())
            {
                segmentImage.Save(dir + "step2.png");
            }
        }
    }
}
See Also