Creates 3 8-bit monochrome images containing the red, green, and blue components of the original color image. This is useful, for example, in images of silver-stained gels, in which the signal is primarily in the red channel. The gel can be scanned in 24-bit color and the green and blue channels thrown away, for a crude form of color filtering.
Future versions of tnimage will split 36- and 48-bit color images into 12- and 16-bit monochrome images. Contact the author for availability.