public HueModifierRelative()
{
formatTranslations[PixelFormat.Format24bppRgb] = PixelFormat.Format24bppRgb;
formatTranslations[PixelFormat.Format32bppRgb] = PixelFormat.Format32bppRgb;
formatTranslations[PixelFormat.Format32bppArgb] = PixelFormat.Format32bppArgb;
formatTranslations[PixelFormat.Format32bppPArgb] = PixelFormat.Format32bppPArgb;
}