This filter heavily distorts image colors by applying trigonometric functions to map color values.
« Presets » are a common feature for several Colors commands. You can find its description in Section 8.1.1, « Fonctions communes aux couleurs ».
The Color Model used for the transformation. Choices are RGB (default) and HSL (Hue, Saturation and Lightness).
The chosen Color Model changes the next settings.
These sliders determine the frequency multiplier for each component in the color transformation.
These sliders and angle selectors determine how much of a phase shift from one component to another will be done for the chosen input component.
These checkboxes allow you disable one or more of the components from being changed. Any component checked here will not be changed by the filter.
These are common features described in Section 8.1.1, « Fonctions communes aux couleurs ».