[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]