module CrImage::Operation::Contrast

Overview

Increases contrast of an image

Taking sample image:

image.contrast(20)

Direct including types

• CrImage::GrayscaleImage
• CrImage::RGBAImage

Defined in:

cr-image/operation/contrast.cr

Instance Method Summary

• #contrast(value : Float64) : self
• #contrast!(value : Float64) : self

Instance Method Detail