ColorRGB makes a color image from three bands of a multiband image. Enter the band numbers to use for the red, green and blue separations.
Bands are numbered 0 to N-1 for an image with N bands. In a three-band color image, red is band 0, green is band 1 and blue is band 2.
The output is a floating-point color image. To write it out for display in other programs, convert it to 8-bit with Pack first. To build a color image from three separate images instead, see Combine.