The Curves tool is the most sophisticated tool for changing the color, brightness, contrast or transparency of the active layer or a selection. While the Levels tool allows you to work on Shadows and Highlights, the Curves tool allows you to work on any tonal range. It works on RGB images.
-
You can access this command from the main menu through → .
-
You can also access it by clicking the tool icon
in the Toolbox if this tool has been installed there. For this, please
refer to Razdelek 6.13, “Orodjarna”.
- Presets, Blending Options, Predogled, Merge filter, Split view
-
![[Opomba]](images/note.png)
Opomba These options are described in Razdelek 8.1.2, “Colors Common Features”.
- Channel
-
There are five options:
- Vrednost
-
The curve represents the Value, i.e. the brightness of pixels as you can see them in the composite image.
- Red, Green, Blue
-
The curve represents the quantity of color in each of the three RGB channels. Here, dark means little of the color. Light means a lot of the color.
- Alpha
-
The curve represents the opacity of the pixels. Dark means very transparent. Light means very opaque. Your image or active layer must have an Alpha channel for this option to be enabled.
- Reset Channel
-
This button deletes all changes made to the selected channel and returns to default values.
-
Linear
,
Non-Linear
,
Perceptual
-
These three buttons determine whether the tone reproduction (TRC) will be displayed using a linear, non-linear, or perceptual X axis.
-
