chromatic aberrations
Correct chromatic aberrations.
In contrast to the raw chromatic aberrations module, this module does not require raw data as input.
🔗workflow
To obtain the best result, you are advised to proceed as follows:
- Attenuate the chromatic aberrations as much as possible in the lens correction module using the TCA sliders.
- Increase the strength slider in this module to better see its effect.
- Increase the radius until the chromatic aberrations disappear. If this is insufficient, try enabling the “very large chromatic aberrations” setting.
- Choose the guide that gives the best result in term of sharpness and artifacts.
- Reduce the strength to avoid washing out the colors too much.
For more complicated cases you could also try the following:
- Use several instances with different correction modes – for example, a first instance in “brighten only” mode, and a second in “darken only” mode.
- Use several instances with low strength to correct the chromatic aberrations a little at a time without degrading colors too much.
- Use the module with parametric or drawn masks.
- Use RGB red, green and blue blend modes to restrict the effect to a particular channel.
🔗module controls
- guide
- The color channel that will be used as a reference for the correction.
- radius
- The radius of the effect. Increase until chromatic aberrations are eliminated. This is the most important slider of the module.
- strength
- This slider acts as a safeguard and can help to preserve colorful areas that do not suffer from chromatic aberrations. Increase for stronger correction, decrease for stronger preservation.
- correction mode
- Allows you to restrict the effect to brighten or darken pixels only. For full control, this can be used in combination with R, G, B blend modes and multiples instances.
- very large chromatic aberrations
- Makes the algorithm iterative to help in reducing very large chromatic aberrations.