public static bool CompareImages(PixelColor[,] p1, PixelColor[,] p2)
{
if (p1.GetLength(0) != p2.GetLength(0))
return false;
long red = 0, green = 0, blue = 0;
for (int i = 1; i < p1.GetLength(0) - 1; i++)
{
for (int j = 1; j < p1.GetLength(1) - 1; j++)
{
PixelColor color = p1[i, j];
PixelColor average = getAverageColor(p2, i, j);
PixelColor diff = color - average;
red += diff.Red;
green += diff.Green;
blue += diff.Blue;
}
}
red = (int)((float)red / p1.Length);
green = (int)((float)green / p1.Length);
blue = (int)((float)blue / p1.Length);
float total = (float)(red + green + blue) / 3f;
return total < 6;
}
public static unsafe void CopyPixels(this BitmapSource source, PixelColor[,] pixels, int stride, int offset)
{
fixed(PixelColor* buffer = &pixels[0, 0])
source.CopyPixels(
new Int32Rect(0, 0, source.PixelWidth, source.PixelHeight),
(IntPtr)(buffer + offset),
pixels.GetLength(0) * pixels.GetLength(1) * sizeof(PixelColor),
stride);
}
public static PixelColor[,] CopyPixels(this BitmapSource source)
{
if (source.Format != PixelFormats.Bgra32)
{
source = new FormatConvertedBitmap(source, PixelFormats.Bgra32, null, 0);
}
PixelColor[,] pixels = new PixelColor[source.PixelWidth, source.PixelHeight];
int stride = source.PixelWidth * ((source.Format.BitsPerPixel + 7) / 8);
GCHandle pinnedPixels = GCHandle.Alloc(pixels, GCHandleType.Pinned);
source.CopyPixels(
new Int32Rect(0, 0, source.PixelWidth, source.PixelHeight),
pinnedPixels.AddrOfPinnedObject(),
pixels.GetLength(0) * pixels.GetLength(1) * 4,
stride);
pinnedPixels.Free();
return(pixels);
}