images.Gamma

Returns an image filter that performs gamma correction on an image.

Syntax

images.Gamma GAMMA

Returns

images.filter

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:

{{ $filter := images.Gamma 1.667 }}

Apply the filter using the images.Filter function:

{{ with resources.Get "images/original.jpg" }}
  {{ with . | images.Filter $filter }}
    <img src="{{ .RelPermalink }}" width="{{ .Width }}" height="{{ .Height }}" alt="">
  {{ end }}
{{ end }}

You can also apply the filter using the Filter method on a Resource object:

{{ with resources.Get "images/original.jpg" }}
  {{ with .Filter $filter }}
    <img src="{{ .RelPermalink }}" width="{{ .Width }}" height="{{ .Height }}" alt="">
  {{ end }}
{{ end }}

Example

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Last updated: December 4, 2023 : Squashed 'docs/' changes from 4d936aee6..4dd2d6415 (35dec7c96)

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