[qyczjpag] Color transformations

The 48 discrete rotations and reflections of the RGB color cube. (That's a lot!)
Adjust the gamma factor along an axis.
Rotate hue in HSV or HSL color space.
Adjust the gamma of S or V or S or L.
Compress or expand sections of the hue coordinate (a one-dimensional circular loupe) .

The motivation is to see details in a photo that were hidden in the original colors.  Automatically generate a slideshow.