--- title: images.Contrast description: Returns an image filter that changes the contrast of an image. categories: [] keywords: [] action: aliases: [] related: - functions/images/Filter - methods/resource/Filter returnType: images.filter signatures: [images.Contrast PERCENTAGE] toc: true --- The percentage must be in the range [-100, 100] where 0 has no effect. A value of `-100` produces a solid grey image, and a value of `100` produces an over-contrasted image. ## Usage Create the filter: ```go-html-template {{ $filter := images.Contrast -20 }} ``` {{% include "functions/images/_common/apply-image-filter.md" %}} ## Example {{< img src="images/examples/zion-national-park.jpg" alt="Zion National Park" filter="Contrast" filterArgs="-20" example=true >}}