### 2.7. LCh Components Layer Modes

The « LCh » group contains layer modes that make use of the LCh color model. « LCh » stands for Lightness, Chroma, Hue. It is mathematically derived from the CIELAB reference color space. See also CIELCh.

LCh Hue

  Figure 8.41. Example for layer mode « LCh Hue »

  Top layer at 100% opacity using « LCh Hue » mode.

  LCh Hue mode corresponds to HSV Hue but is based on different mathematical formulas.

LCh Chroma

  Figure 8.42. Example for layer mode « LCh Chroma »

  Top layer at 100% opacity using « LCh Chroma » mode.

  LCh Chroma mode corresponds to HSV Saturation but is based on different mathematical formulas.

LCh Color

  Figure 8.43. Example for layer mode « LCh Color »

  Top layer at 100% opacity using « LCh Color » mode.

  LCh Color mode is a combination of LCh Chroma and LCh Hue, and corresponds to HSV Color, but is based on different mathematical formulas. See A tutorial on GIMP's very awesome LCH Blend Modes for information on using this layer mode.

LCh Lightness

  Figure 8.44. Example for layer mode « LCh Lightness »

  Top layer at 100% opacity using « LCh Lightness » mode.

  LCh Lightness mode corresponds to HSV Value, but is based on different mathematical formulas. See A tutorial on GIMP's very awesome LCH Blend Modes for information on using this layer mode.

Luminance

  Figure 8.45. Example for layer mode « Luminance »

  Top layer at 100% opacity using « Luminance » mode.

  Luminance mode is similar to CIE luminance, but does not alter saturation. It divides the upper layer luminance by the lower layer luminance; then uses that result to multiply with the lower layer component.

2.6. HSV Components Layer Modes |  | 3. Legacy Layer Modes

Report a bug in GIMP Report a documentation error