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+---
+title: images.Gamma
+description: Returns an image filter that performs gamma correction on an image.
+categories: []
+keywords: []
+action:
+ aliases: []
+ related:
+ - functions/images/Filter
+ - methods/resource/Filter
+ returnType: images.filter
+ signatures: [images.Gamma GAMMA]
+toc: true
+---
+
+The gamma value must be positive. A value greater than 1 lightens the image, while a value less than 1 darkens the image. The filter has no effect when the gamma value is 1.
+
+## Usage
+
+Create the filter:
+
+```go-html-template
+{{ $filter := images.Gamma 1.667 }}
+```
+
+{{% include "functions/images/_common/apply-image-filter.md" %}}
+
+## Example
+
+{{< img
+ src="images/examples/zion-national-park.jpg"
+ alt="Zion National Park"
+ filter="Gamma"
+ filterArgs="1.667"
+ example=true
+>}}