CombineChannels

Produces a colour pixmap by using same-size greyscale pixmaps as RGB or HSV channels.

Syntax

• CombineChannels(fam, ch1, ch2, ch3)

  • fam is one of "rgb" or "hsv"

  • ch1, ch2, and ch3 are greyscale pixmaps of the same size

Description

If ch1, ch2, and ch3 are greyscale pixmaps of the same size, then CombineChannels(fam, ch1, ch2, ch3) returns the colour pixmap that has ch1, ch2, and ch3 as its RGB (if fam = "rgb") or HSV (if fam = "hsv") channels. The greyscale intensities, from black to white, are mapped linearly to [0, 360] for hue and to [0, 1] for all other channels.

Examples

harvestman ≔ ExtractChannel(ExampleData("harvestman"), "rgb", "r");

rabbit ≔ ExtractChannel(ExampleData("rabbit"), "rgb", "g");

CombineChannels("rgb", harvestman, rabbit, harvestman)

harvestman ≔ ExtractChannel(ExampleData("harvestman"), "hsv", "v")

rabbit ≔ ExtractChannel(ExampleData("rabbit"), "hsv", "v")

CombineChannels("hsv", harvestman, rabbit, rabbit)

See also

• ExtractChannel