PixelFormat
The pixel data format actual meaning.
Bgr = 1
The BGR color space.
CieLab = 6
The CIE lab color space.
Cmyk = 4
The CMYK color space.
Grayscale = 0
The grayscale color space
Rgb = 2
The RGB color space.
YCbCr = 3
The YCbCr color space.
Ycck = 5
The YCCK color space.