TooltipBox[" "]ColorSeparate[image] gives a list of single-channel images corresponding to each of the color channels in image. 8+ColorSeparate[image, colorspace] gives a ...

AlphaChannel[image] returns the alpha channel of image.

RemoveAlphaChannel[image] removes all opacity information from image. RemoveAlphaChannel[image, c] removes opacity by blending all pixels with the background color c.

SetAlphaChannel[image] adds a fully opaque alpha channel to image. SetAlphaChannel[image, a] sets the opacity of all pixels to a. SetAlphaChannel[image, aimage] sets the ...

ColorNegate[image] gives the negative of image, in which all colors have been negated. FColorNegate[color] gives the negative of a color.

TooltipBox["9~"]ImageChannels[image] gives the number of channels present in the data for the Image or Image3D object image.

ImageColorSpace[image] gives the name of the color space of image.

ColorCombine[{image_1, image_2, ...}] creates a multichannel image by combining the sequence of channels in the image_i. TooltipBox["8+"]ColorCombine[{image_1, image_2, ...}, ...

ColorQuantize[image, n] gives an approximation to image that uses only n distinct colors.

Image3DSlices[image] gives a list of 2D images corresponding to the slices in the Image3D object image. Image3DSlices[image, {s_1, s_2, ...}] extracts the specified slices ...