> For the complete documentation index, see [llms.txt](https://docs.cloudimage.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cloudimage.io/transformations/image-filters/adjustment/contrast.md).
# Contrast
To adjust the contrast, you can use the **contrast** filter and set the desired adjustment value.
**contrast=X**
## Examples
| Preview | Syntax |
| -------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
|  | Original image:
/samples.scaleflex.com/frog.png?w=400
|
|  | Increased contrast:
/samples.scaleflex.com/frog.png?w=400&contrast=30
|
|  | Decreased contrast:
/samples.scaleflex.com/frog.png?w=400&contrast=-10
|
