### 8.23. Extract Component

#### 8.23.1. 概述

图 16.167. Extract Component applied

原图

Command “Extract Component” applied with default options.

This command allows you to extract one specific color component from the current layer. This will be represented as a grayscale layer. It is similar to Decompose, except that it extracts only one component and the effect is performed on the current layer instead of creating a new image.

#### 8.23.2. Activating the Command

You can access this command from the main menu through Colors → Components → Extract Component….

#### 8.23.3. 选项

图 16.168. “Extract Component” command options

Presets, Blending Options, Preview, Merge filter, Split view

  | 注意
  These options are described in 第 8.1.2 节 “Colors Common Features”.

Component

  Component to extract. Default is RGB Red: all layer pixels that have the red component in their color will be extracted to create gray pixels; gray pixel value is that of the red channel (e.g a 153;70;17 RGB pixel will give a 153;153;153 gray pixel).

Invert component

  Invert all pixel values of the extracted component.

Linear output

  Use linear output instead of gamma corrected.

8.22. Channel Mixer |  | 8.24. Mono Mixer

Report a bug in GIMP Report a documentation error