8.26. Compose
8.26.1. Overview
Figure 16.200. Example for the “Compose” command
Decomposed image (RGB decomposition)
“Compose” applied
This command constructs an image from several grayscale images or layers, for instance from extracted RGB, HSV, etc. components. You can also build an image from grayscale images or layers created independently.
8.26.2. Activate the command
- You can find this command in the image window menu under Colors → Components → Compose…. It is enabled if your image is grayscale.
8.26.3. Options
Figure 16.201. “Compose” command options
Compose Channels
Here you can select the color space to be used: RGB, HSV… The available options are described in the Decompose command.
Channel Representation
Allows you to select which layer or image will be used for each channel. You may use this option, for example, to exchange color channels:
Figure 16.202. Channel Representation example: exchange two channels
Original image
Decomposed to layers
Applied Channel Representation
Composed image
Mask Value: Instead of selecting a layer or an image to build the channel, you can give the channel a value from 0 to 255. But note that at least one channel must be formed from a layer or image.
Tip | |
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If you use different settings in Compose than when you used Decompose, for instance an image decomposed to RGB then re-composed to LAB, you will get interesting color effects. Test it! |