CalculateImageCrc32(
BitmapSource bitmapSource
)
{
Crc32 crc32 = new Crc32();
int width = bitmapSource.PixelWidth;
int height = bitmapSource.PixelHeight;
int stride = (width * bitmapSource.Format.BitsPerPixel + 7) / 8;
Int32Rect rect = new Int32Rect(0, 0, width, 1);
byte[] pixels = new byte[stride];
for (int i = 0; i < height; i += 1)
{
bitmapSource.CriticalCopyPixels(rect, pixels, stride, 0);
rect.Y++;
crc32.AddData(pixels);
}
return(crc32.Crc32Value);
}
