private (Bitmap, ColorDifference) ImagesDifference(Image firstImage, Image secondImage, IColorDifferences colorDifferences, int multiplier = 25)
{
int width = Math.Min(firstImage.Width, secondImage.Width);
int height = Math.Min(firstImage.Height, secondImage.Height);
Bitmap first = (Bitmap)firstImage;
Bitmap second = (Bitmap)secondImage;
Bitmap diff = new Bitmap(width, height);
ColorDifference totalDifference = new ColorDifference();
for (int i = 0; i < width; ++i)
{
for (int j = 0; j < height; ++j)
{
Color firstImagePx = first.GetPixel(i, j);
Color secondImagePx = second.GetPixel(i, j);
Color differencePx = colorDifferences.GetDifference(firstImagePx, secondImagePx, multiplier);
totalDifference.Accumulate(differencePx);
diff.SetPixel(i, j, differencePx);
}
}
totalDifference.Reduce(multiplier);
return(diff, totalDifference);
}
