private async void ImagesDifferenceAsync(Image firstImage, Image secondImage)
{
int width = BmpImage.Width;
int height = BmpImage.Height;
Bitmap first = (Bitmap)firstImage;
Bitmap second = (Bitmap)secondImage;
Bitmap diff = new Bitmap(width, height);
RGBColor = new RGB();
ProgressValue = 0;
ProgressMaximum = width * height;
await Task.Run(() =>
{
int r = 0, g = 0, b = 0;
int multiplier = 6;
for (int i = 0; i < width; ++i)
{
for (int j = 0; j < height; ++j)
{
r = (ColorType == 0 || ColorType == 1) ? Math.Abs(first.GetPixel(i, j).R - second.GetPixel(i, j).R) : 0;
g = (ColorType == 0 || ColorType == 2) ? Math.Abs(first.GetPixel(i, j).G - second.GetPixel(i, j).G) : 0;
b = (ColorType == 0 || ColorType == 3) ? Math.Abs(first.GetPixel(i, j).B - second.GetPixel(i, j).B) : 0;
RGBColor.AppendRGB(r, g, b);
r = r * multiplier;
g = g * multiplier;
b = b * multiplier;
r = (r > 255) ? 255 : r;
g = (g > 255) ? 255 : g;
b = (b > 255) ? 255 : b;
diff.SetPixel(i, j, Color.FromArgb(byte.MaxValue, r, g, b));
ProgressValue++;
}
}
});
DisplayImage = Imaging.CreateBitmapSourceFromHBitmap(diff.GetHbitmap(), IntPtr.Zero, System.Windows.Int32Rect.Empty, BitmapSizeOptions.FromWidthAndHeight(width, height));
}