schema_version: 0.1
type: filter
identifier: lumaliftgaingamma
title: LumaLiftGainGamma
version: 1
copyright: Janne Liljeblad
creator: Janne Liljeblad
license: GPL
language: en
tags:
  - Video
description:
  Filter can be used to apply lift, gain and gamma correction to
  luma values of image.

parameters:
  - identifier: lift
    title: Lift
    type: double
    minimum: -0.5
    maximum: 0.5
    default: 0
    description: >
      Adds a value computed using parameter value 
      to color channel values.

parameters:
  - identifier: gain
    title: Gain
    type: double
    minimum: -0.5
    maximum: 0.5
    default: 0
    description: >
      Multiplies color channel values by value
      computed using paramter value.

parameters:
  - identifier: gamma
    title: Gamma
    type: double
    minimum: -1.0
    maximum: 1.0
    default: 0
    description: >
      Applies a gamma correction to all 
      color channel values.