将图像转换为字节流 [英] Converting image into stream of bytes

问题描述

如何在银色光4中将图像转换为字节流

推荐答案

您可以使用此简单的代码来了解如何转换流到byte [].

You can use this simple code to understand how convert stream to byte[].

public static byte[] ToByteArray(this WriteableBitmap bmp)
{
   // Init buffer
   int w = bmp.PixelWidth;
   int h = bmp.PixelHeight;
   int[] p = bmp.Pixels;
   int len = p.Length;
   byte[] result = new byte[4 * w * h];
   // Copy pixels to buffer
   for (int i = 0, j = 0; i < len; i++, j += 4)
  {
      int color = p[i];
      result[j + 0] = (byte)(color >> 24); // A
      result[j + 1] = (byte)(color >> 16); // R
      result[j + 2] = (byte)(color >> 8);  // G
      result[j + 3] = (byte)(color);       // B
   }
    return result;
}

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