Enum DitheringMethod

Le nom : Aspose.Imaging Assemblée: Aspose.Imaging.dll (25.4.0)

Méthode de détection.

public enum DitheringMethod

Fields

FloydSteinbergDithering = 1

Un algorithme plus complexe, utilisant les valeurs d’intensité des voisins les plus proches.

ThresholdDithering = 0

L’algorithme le plus simple et le plus rapide.

Examples

L’exemple suivant charge une image de raster et effectue le débit et le fluid dithering en utilisant différentes profondeurs de palette.

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

                                                                                                                               using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.png"))
                                                                                                                               {
                                                                                                                                   Aspose.Imaging.RasterImage rasterImage = (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(Aspose.Imaging.DitheringMethod.ThresholdDithering, 4);

                                                                                                                                   rasterImage.Save(dir + "sample.ThresholdDithering4.png");
                                                                                                                               }

                                                                                                                               using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.png"))
                                                                                                                               {
                                                                                                                                   Aspose.Imaging.RasterImage rasterImage = (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(Aspose.Imaging.DitheringMethod.FloydSteinbergDithering, 1);

                                                                                                                                   rasterImage.Save(dir + "sample.FloydSteinbergDithering1.png");
                                                                                                                               }