static public ShortARGB InvertColor(ShortARGB colorInput)
{
return(new ShortARGB(colorInput.A,
255 - ImagePixels.ShortToByte(colorInput.R),
255 - ImagePixels.ShortToByte(colorInput.G),
255 - ImagePixels.ShortToByte(colorInput.B)));
}
static public ShortARGB Contrast(ShortARGB color, short value)
{
if (color.R + color.G + color.B > 382.5)
{
return(new ShortARGB(color.A, color.R + value, color.G + value, color.B + value));
}
return(new ShortARGB(color.A, color.R - value, color.G - value, color.B - value));
}
static public ShortARGB GrayScale2(ShortARGB colorInput)
{
var R = (int)Math.Round(colorInput.R * 0.299);
var G = (int)Math.Round(colorInput.G * 0.587);
var B = (int)Math.Round(colorInput.G * 0.114);
var gray = R + G + B;
return(new ShortARGB(colorInput.A, gray, gray, gray));
}
private void SetPixel(long x, long y, ShortARGB color)
{
var step = CalcualteStep(x, y);
Pixels[step] = color.B;
Pixels[step + 1] = color.G;
Pixels[step + 2] = color.R;
Pixels[step + 3] = color.A;
}
static public ShortARGB GrayScale1(ShortARGB colorInput)
{
var gray = (int)Math.Round((colorInput.R + colorInput.G + colorInput.B) / 3f);
return(new ShortARGB(colorInput.A, gray, gray, gray));
}
static public ShortARGB Brightness(ShortARGB color, short value) => new ShortARGB(color.A, color.R + value, color.G + value, color.B + value);