[函数名称]
图像加法函数AddProcess(WriteableBitmap src, WriteableBitmap addSrc)
[函数代码]
/// <summary>
/// Add procession of two images(Both of them should be in same size).
/// </summary>
/// <param name="src">The first source image.</param>
/// <param name="addSrc">The second source iamge.</param>
/// <returns></returns>
public static WriteableBitmap AddProcess(WriteableBitmap src,WriteableBitmap addSrc)27图像加法
{
if (src != null)
{
int w = src.PixelWidth;
int h = src.PixelHeight;
WriteableBitmap addImage = new WriteableBitmap(w, h);
byte[] temp = src.PixelBuffer.ToArray();
byte[] addTemp = addSrc.PixelBuffer.ToArray();
byte[] dst = new byte[w * h * 4];
int r = 0, g = 0, b = 0;
for (int i = 0; i < w; i++)
{
for (int j = 0; j < h; j++)
{
b = temp[i * 4 + (h - 1 - j) * w * 4] + addTemp[i * 4 + (h - 1 - j) * w * 4];
g = temp[i * 4 + 1 + (h - 1 - j) * w * 4] + addTemp[i * 4 + 1 + (h - 1 - j) * w * 4];
r = temp[i * 4 + 2 + (h - 1 - j) * w * 4] + addTemp[i * 4 + 2 + (h - 1 - j) * w * 4];
dst[i * 4 + j * w * 4] = (byte)(b > 0 ? (b < 255 ? b : 255) : 0);
dst[i * 4 + 1 + j * w * 4] = (byte)(g > 0 ? (g < 255 ? g : 255) : 0);
dst[i * 4 + 2 + j * w * 4] = (byte)(r > 0 ? (r < 255 ? r : 255) : 0);
dst[i * 4 + 3 + j * w * 4] = 0;
b = 0; g = 0; r = 0;
}
}
Stream sTemp = addImage.PixelBuffer.AsStream();
sTemp.Seek(0, SeekOrigin.Begin);
sTemp.Write(dst, 0, w * 4 * h);
return addImage;
}
else
{
return null;
}
}
