You can use the convert command from ImageMagick to separate JPG images into the R G and B fields easily:
convert -separate -channel R Im.jpg R.jpg
convert -separate -channel G Im.jpg G.jpg
convert -separate -channel B Im.jpg B.jpg
A blog about a telescopic system at the Mauna Loa Observatory on Hawaii to determine terrestrial albedo by earthshine observations. Feasible thanks to sheer determination.
You can use the convert command from ImageMagick to separate JPG images into the R G and B fields easily:
convert -separate -channel R Im.jpg R.jpg
convert -separate -channel G Im.jpg G.jpg
convert -separate -channel B Im.jpg B.jpg