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53 lines
1.3 KiB
Markdown
53 lines
1.3 KiB
Markdown
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---
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title: images.Opacity
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description: Returns an image filter that changes the opacity of an image.
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categories: []
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keywords: []
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action:
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aliases: []
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related:
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- functions/images/Filter
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- methods/resource/Filter
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returnType: images.filter
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signatures: [images.Opacity OPACITY]
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toc: true
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---
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{{< new-in 0.119.0 >}}
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The opacity value must be in the range [0, 1]. A value of `0` produces a transparent image, and a value of `1` produces an opaque image (no transparency).
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## Usage
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Create the filter:
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```go-html-template
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{{ $filter := images.Opacity 0.65 }}
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```
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{{% include "functions/images/_common/apply-image-filter.md" %}}
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The `images.Opacity` filter is most useful for target formats such as PNG and WebP that support transparency. If the source image does not support transparency, combine this filter with the `images.Process` filter:
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```go-html-template
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{{ with resources.Get "images/original.jpg" }}
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{{ $filters := slice
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(images.Opacity 0.65)
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(images.Process "png")
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}}
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{{ with . | images.Filter $filters }}
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<img src="{{ .RelPermalink }}" width="{{ .Width }}" height="{{ .Height }}" alt="">
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{{ end }}
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{{ end }}
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```
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## Example
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{{< img
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src="images/examples/zion-national-park.jpg"
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alt="Zion National Park"
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filter="Opacity"
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filterArgs="0.65"
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example=true
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>}}
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