mirror of
https://github.com/gohugoio/hugo.git
synced 2024-12-01 18:33:08 -05:00
37 lines
795 B
Markdown
37 lines
795 B
Markdown
|
---
|
||
|
|
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
|
||
|
|
>}}
|