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Wolfram Language & System Documentation Center
ColorCombine
  • See Also
    • ColorSeparate
    • ColorNegate
    • ImageData
    • Interleaving
    • ImageExposureCombine
    • ImageFocusCombine
  • Related Guides
    • Color Processing
    • Image Computation: Update History
    • Image Representation
    • See Also
      • ColorSeparate
      • ColorNegate
      • ImageData
      • Interleaving
      • ImageExposureCombine
      • ImageFocusCombine
    • Related Guides
      • Color Processing
      • Image Computation: Update History
      • Image Representation

ColorCombine[{image1,image2,…}]

creates a multichannel image by combining the sequence of channels in the imagei.

ColorCombine[{image1,image2,…},colorspace]

combines images that represent the color components specified by colorspace.

Details
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Applications  
Properties & Relations  
Neat Examples  
See Also
Related Guides
History
Cite this Page
BUILT-IN SYMBOL
  • See Also
    • ColorSeparate
    • ColorNegate
    • ImageData
    • Interleaving
    • ImageExposureCombine
    • ImageFocusCombine
  • Related Guides
    • Color Processing
    • Image Computation: Update History
    • Image Representation
    • See Also
      • ColorSeparate
      • ColorNegate
      • ImageData
      • Interleaving
      • ImageExposureCombine
      • ImageFocusCombine
    • Related Guides
      • Color Processing
      • Image Computation: Update History
      • Image Representation

ColorCombine

ColorCombine[{image1,image2,…}]

creates a multichannel image by combining the sequence of channels in the imagei.

ColorCombine[{image1,image2,…},colorspace]

combines images that represent the color components specified by colorspace.

Details

  • ColorCombine is typically used to combine multiple single-channel images into a multichannel image.
  • ColorCombine[{image1,image2,…}] creates an image containing channels obtained by concatenating the sequence of channels from each imagei.
  • ColorCombine works on 2D or 3D images.
  • The images {image1,image2,…} must have the same dimensions.
  • ColorCombine[{image1,image2,…},colorspace] returns an image of the specified colorspace.
  • The following colorspace specifications can be given:
  • "RGB"red, green, blue (RGBColor)
    "CMYK"cyan, magenta, yellow, black (CMYKColor)
    "HSB"hue, saturation, brightness (Hue)
    "XYZ"CIE XYZ channels (XYZColor)
    "LAB"CIE Lab channels (LABColor)
    "LCH"CIE LCH channels (LCHColor)
    "LUV"CIE LUV channels (LUVColor)
  • With a colorspace that requires n color channels, n or n+1 channels may be combined. The n+1^(th) channel is used as an alpha channel.
  • When combining a color image with a grayscale image, ColorCombine creates an image of the same color space with alpha channel.

Examples

open all close all

Basic Examples  (2)

Combine three gray-level images into an RGB image:

Wolfram Language code: ColorCombine[{[image], [image], [image]}, "RGB"]

Combine three gray-level 3D images into an RGB volume:

Wolfram Language code: ColorCombine[{[image], [image], [image]}]

Scope  (6)

Combine three binary images into an RGB image:

Wolfram Language code: ColorCombine[{[image], [image], [image]}, "RGB"]

Combine three single-channel images into an HSB image:

Wolfram Language code: ColorCombine[{[image], [image], [image]}, "HSB"]

Combine images into a CMYK image:

Wolfram Language code: ColorCombine[{[image], [image], [image], [image]}, "CMYK"]

Color combine channels of a three-channel image rendered using all the supported color spaces:

Wolfram Language code: cs = {"RGB", "HSB", "LAB", "LCH", "LUV", "XYZ"}; TableForm[Table[ColorCombine[ColorSeparate[[image], in], out], {in, cs}, {out, cs}], ...]

Combine four single-frame images into an RGBA image:

Wolfram Language code: ColorCombine[{[image], [image], [image], [image]}, "RGB"]

Combine an RGB image with a single-frame image to get an RGBA image:

Wolfram Language code: ColorCombine[{[image], [image]}, "RGB"]

Create a six-channel image:

Wolfram Language code: ColorCombine[{[image], [image]}]

Applications  (5)

Display a channel-wise GradientFilter:

Wolfram Language code: ColorCombine[GradientFilter[#, 1]& /@ ColorSeparate[[image], "RGB"]]//ImageAdjust

Increase the contrast of the luminance channel only:

Wolfram Language code: img = [image];
Wolfram Language code: {l, a, b} = ColorSeparate[img, "LAB"]; ColorCombine[{ImageAdjust[l, 0.6], a, b}, "LAB"]

Highlight the result of corner filtering:

Wolfram Language code: i = [image]; res = CornerFilter[i]//ImageAdjust

Show corners in red by adding the result to the red channel and subtract it from the green and blue channels:

Wolfram Language code: ColorCombine[{i + res, i - res, i - res}]

Replace the red channel of an aerial image with an infrared image to highlight regions with greater biomass density:

Wolfram Language code: rgb = [image];inf = [image];
Wolfram Language code: ColorCombine[{inf, ColorSeparate[rgb, "G"], ColorSeparate[rgb, "B"]}, "RGB"]

Add an alpha channel to a 3D image that highlights a single slice:

Wolfram Language code: ColorCombine[{[image], [image]}]

Add an alpha channel in the shape of a Gaussian sphere to a 3D image:

Wolfram Language code: ColorCombine[{[image], [image]}]

Properties & Relations  (2)

By default, no explicit color space is assigned to the image:

Wolfram Language code: imgs = {[image], [image], [image]};
Wolfram Language code: ColorCombine[imgs]
Wolfram Language code: ImageColorSpace[%]

Note that three channel images are rendered similarly to RGB images:

Wolfram Language code: ColorCombine[imgs, "RGB"]

Images created with ColorCombine have Interleaving->False:

Wolfram Language code: ColorCombine[{[image], [image], [image]}]
Wolfram Language code: Options[%, Interleaving]

Neat Examples  (2)

Show color channel permutations:

Wolfram Language code: Map[ColorCombine, Permutations[ColorSeparate[[image]]]]

Adjust a channel of an image:

Wolfram Language code: i = [image];
Wolfram Language code: {c, m, y, k} = ColorSeparate[i, "CMYK"];
Wolfram Language code: Table[ColorCombine[{c, ImageAdjust[m, {0, 0, γ}], y, k}, "CMYK"], {γ, 1 / 2, 2, .5}]

See Also

ColorSeparate  ColorNegate  ImageData  Interleaving  ImageExposureCombine  ImageFocusCombine

Related Guides

    ▪
  • Color Processing
  • ▪
  • Image Computation: Update History
  • ▪
  • Image Representation

History

Introduced in 2008 (7.0) | Updated in 2012 (9.0)

Wolfram Research (2008), ColorCombine, Wolfram Language function, https://reference.wolfram.com/language/ref/ColorCombine.html (updated 2012).

Text

Wolfram Research (2008), ColorCombine, Wolfram Language function, https://reference.wolfram.com/language/ref/ColorCombine.html (updated 2012).

CMS

Wolfram Language. 2008. "ColorCombine." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2012. https://reference.wolfram.com/language/ref/ColorCombine.html.

APA

Wolfram Language. (2008). ColorCombine. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ColorCombine.html

BibTeX

@misc{reference.wolfram_2026_colorcombine, author="Wolfram Research", title="{ColorCombine}", year="2012", howpublished="\url{https://reference.wolfram.com/language/ref/ColorCombine.html}", note=[Accessed: 02-October-2026]}

BibLaTeX

@online{reference.wolfram_2026_colorcombine, organization={Wolfram Research}, title={ColorCombine}, year={2012}, url={https://reference.wolfram.com/language/ref/ColorCombine.html}, note=[Accessed: 02-October-2026]}

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