[函数名称]

  指数增强      WriteableBitmap IndexenhanceProcess(WriteableBitmap src)

[函数代码]

<strong>        /// <summary>
        /// Enhanced index process.
        /// </summary>
        /// <param name="src">The source image.</param>
        /// <returns></returns>
         public static WriteableBitmap IndexenhanceProcess(WriteableBitmap src)////指数增强
         {
             if (src != null)
             {
                 int w = src.PixelWidth;
                 int h = src.PixelHeight;
                 WriteableBitmap srcImage = new WriteableBitmap(w, h);
                 byte[] temp = src.PixelBuffer.ToArray();
                 byte[] tempMask = (byte[])temp.Clone();
                 for (int i = 0; i < tempMask.Length; i++)
                 {
                     temp[i] = (byte)((1.0 / 255.0) * (double)(tempMask[i] * tempMask[i]));
                 }
                 Stream sTemp = srcImage.PixelBuffer.AsStream();
                 sTemp.Seek(0, SeekOrigin.Begin);
                 sTemp.Write(temp, 0, w * 4 * h);
                 return srcImage;
             }
             else
             {
                 return null;
             }
         }</strong>

[图像效果]