DjvuImageDither Method (DitheringMethod, Int32, IColorPalette) |
Namespace: Aspose.Imaging.FileFormats.Djvu
public override void Dither( DitheringMethod ditheringMethod, int bitsCount, IColorPalette customPalette )
[C#] string dir = "c:\\temp\\"; using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu")) { Aspose.Imaging.FileFormats.Djvu.DjvuImage dicomImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)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. dicomImage.Dither(Aspose.Imaging.DitheringMethod.ThresholdDithering, 4, null); dicomImage.Save(dir + "sample.ThresholdDithering4.png", new Aspose.Imaging.ImageOptions.PngOptions()); } using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.djvu")) { Aspose.Imaging.FileFormats.Djvu.DjvuImage dicomImage = (Aspose.Imaging.FileFormats.Djvu.DjvuImage)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. dicomImage.Dither(Aspose.Imaging.DitheringMethod.FloydSteinbergDithering, 1, null); dicomImage.Save(dir + "sample.FloydSteinbergDithering1.png", new Aspose.Imaging.ImageOptions.PngOptions()); }