Part of ants registration suite
ConvertScalarImageToRGB \,imageDimension inputImage outputImage mask colormap \/[\,customColormapFile\/] [\,minimumInput\/] [\,maximumInput\/] [\,minimumRGBOutput=0\/] [\,maximumRGBOutput=255\/]
Possible colormaps: grey, red, green, blue, copper, jet, hsv, spring, summer, autumn, winter, hot, cool, overunder, custom