Curves

kdenlive2304_effects-curves

Description

This effect/filter adjusts shadows, midtones and highlights of an image using curves. It is similar to the Color Levels or Levels effects but with the option to create additional points along the curve allowing for pinpoint accuracy when adjusting brightness values.

Parameters

Parameter

Value

Description

Channel

Selection

Set the channel to which the curve applies.

Luma formula

Selection

Set the color space in which the application takes place

In

Float

Set the Input value

Out

Float

Set the Output value

Show graph in picture

Switch

Check this box to overlay the graph onto the image in the Project Monitor. Note that this influences the RGB Parade and Histogram widgets.

Graph position

Selection

Select the position for the graph

The following selection items are available:

Channel

RGB

Default

Red

Green

Blue

Alpha

Luma

Saturation

Luma formula

Rec. 709

Default

Rec. 601

Graph position

Top left

Top right

Bottom left

Bottom right

Default

Hint

It is recommended to use this effect while in Color layout as this comes with RGB Parade and Histogram already switched on. If you want to use the effect while in Editing or Effects layout, turn on the Histogram widget with Menu ‣ View ‣ Histogram.