mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-14 20:37:55 -05:00
5fd1e74903
``` git subtree add --prefix=docs/ https://github.com/gohugoio/hugoDocs.git master --squash ``` Closes #11925
52 lines
1.3 KiB
Markdown
52 lines
1.3 KiB
Markdown
---
|
|
title: images.Opacity
|
|
description: Returns an image filter that changes the opacity of an image.
|
|
categories: []
|
|
keywords: []
|
|
action:
|
|
aliases: []
|
|
related:
|
|
- functions/images/Filter
|
|
- methods/resource/Filter
|
|
returnType: images.filter
|
|
signatures: [images.Opacity OPACITY]
|
|
toc: true
|
|
---
|
|
|
|
{{< new-in 0.119.0 >}}
|
|
|
|
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).
|
|
|
|
## Usage
|
|
|
|
Create the filter:
|
|
|
|
```go-html-template
|
|
{{ $filter := images.Opacity 0.65 }}
|
|
```
|
|
|
|
{{% include "functions/images/_common/apply-image-filter.md" %}}
|
|
|
|
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:
|
|
|
|
```go-html-template
|
|
{{ with resources.Get "images/original.jpg" }}
|
|
{{ $filters := slice
|
|
(images.Opacity 0.65)
|
|
(images.Process "png")
|
|
}}
|
|
{{ with . | images.Filter $filters }}
|
|
<img src="{{ .RelPermalink }}" width="{{ .Width }}" height="{{ .Height }}" alt="">
|
|
{{ end }}
|
|
{{ end }}
|
|
```
|
|
|
|
## Example
|
|
|
|
{{< img
|
|
src="images/examples/zion-national-park.jpg"
|
|
alt="Zion National Park"
|
|
filter="Opacity"
|
|
filterArgs="0.65"
|
|
example=true
|
|
>}}
|