Set color channel🔗

Sets a color channel in a color image.


  • image: A color image.

  • channelIndex: The index of the color channel to set. 0 = Red, 1 = Green, 2 = Blue, 3 = Alpha.

  • channel: A color or gray level image that replaces the color channel at channelIndex. The size of the channel image must match that of image. If channel is a color image, the corresponding color channel will be copied.


  • image: A color image.