ImageChannels[image]
gives the number of channels present in the data for the Image or Image3D object image.
ImageChannels[video]
gives the number of channels present in frames of a video.


ImageChannels
ImageChannels[image]
gives the number of channels present in the data for the Image or Image3D object image.
ImageChannels[video]
gives the number of channels present in frames of a video.
Details

- An image can be constructed from color channels or components such as red, green, blue in the RGB space. Each channel is an array of pixel values.
- Number of channels present in typical images are:
-
g 1-channel image in grayscale {g,α} 2-channel grayscale with alpha {r,g,b} 3-channel RGB image {r,g,b,α} 4-channel RGB with alpha {c,m,y,k} 4-channel CMYK image {c,m,y,k,α} 5-channel CMYK with alpha

Tech Notes
Related Guides
History
Introduced in 2008 (7.0) | Updated in 2012 (9.0) ▪ 2021 (13.0)
Text
Wolfram Research (2008), ImageChannels, Wolfram Language function, https://reference.wolfram.com/language/ref/ImageChannels.html (updated 2021).
CMS
Wolfram Language. 2008. "ImageChannels." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2021. https://reference.wolfram.com/language/ref/ImageChannels.html.
APA
Wolfram Language. (2008). ImageChannels. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ImageChannels.html
BibTeX
@misc{reference.wolfram_2025_imagechannels, author="Wolfram Research", title="{ImageChannels}", year="2021", howpublished="\url{https://reference.wolfram.com/language/ref/ImageChannels.html}", note=[Accessed: 08-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_imagechannels, organization={Wolfram Research}, title={ImageChannels}, year={2021}, url={https://reference.wolfram.com/language/ref/ImageChannels.html}, note=[Accessed: 08-August-2025]}