The images you see here are (more or less) calibrated images that were released to the Planetary Data System, they are not raw jpeg processed images that immediately appear on the mission website as they’re downlinked from the spacecraft. The downside of the PDS is the data releases are delayed about 9 months in order to give the imaging team priority over analyzing data (hey, they built the cameras!). Other than that, the PDS data allow more accurate reconstruction of colors and brightnesses over the histogram-stretched jpeg images.
I’ve put up this gallery because I was somewhat underwhelmed by the frequency the Cassini Imaging Team releases color composites. Granted, there isn’t an overwhelming number of color sets available, but even when there is a chance to do color, the team often prefers grayscale. –Gordon Ugarkovic