在.net中使用GDI+来提高gif图片画质，这就是“Octree” 算法。“Octree”算法允许我们插入自己的算法来量子化我们的图像。
使用octreequantizer很方便：
| 以下是引用片段： system.drawing.bitmap b = new System.Drawing.Bitmap(“c:\original_image.gif“); System.Drawing.Image thmbnail = b.GetThumbnailImage(100,75,null,new IntPtr()); OctreeQuantizer quantizer = new OctreeQuantizer ( 255 , 8 ) ; using ( Bitmap quantized = quantizer.Quantize ( thmbnail ) ) { quantized.Save(“c:\thumnail.gif“, System.Drawing.Imaging.ImageFormat.Gif); } octreequantizer grayquantizer = new GrayscaleQuantizer ( ) ; using ( Bitmap quantized = grayquantizer.Quantize ( thmbnail ) ) { quantized.Save(“c:\thumnail.gif“, System.Drawing.Imaging.ImageFormat.Gif); } |
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