The filter extracts specified YCbCr channel of color image and returns it in the form of grayscale image.

The filter accepts 24 and 32 bpp color images and produces 8 bpp grayscale images.

Sample usage:

CopyC#

// create filter
YCbCrExtractChannel filter = new YCbCrExtractChannel( YCbCr.CrIndex );
// apply the filter
Bitmap crChannel = filter.Apply( image );