More details on gamma correction for publication on the WWW can be found from the link
The full specification of the new sRGB standard color space for WWW applications can be viewed from
The new MPEG standard, MPEG-7 is discussed in Chapter 12. That standard somewhat sidesteps the thorny question of whose favorite color space to use in a standard definition by including six color spaces. One of them is a new variant on HSV space, called HMMD Color Space, that purports to allow a simple color quantization, from 24-bit down to 8-bit color, say, that is effectively equivalent to a complex vector color quantization (i.e., considering a more careful, but also more expensive mapping of the colors in an image into the color LUT). This new color space may indeed become important: it can be explored at
A Matlab script to exercise (and expand upon) the color transform functions that are part of the Image Toolbox in Matlab: the standard `Lena' image is transformed to YIQ and to YCbCr.