private YCbCrReplaceChannel( ) { // initialize format translation dictionary formatTranslations[PixelFormat.Format24bppRgb] = PixelFormat.Format24bppRgb; formatTranslations[PixelFormat.Format32bppRgb] = PixelFormat.Format32bppRgb; formatTranslations[PixelFormat.Format32bppArgb] = PixelFormat.Format32bppArgb; }