# Scrawl-canvas v8 - Filters test 020

## Parameters for: clampChannels filter

### To change image, drag-and-drop an image file over the canvas

Low red
High red
Low green
High green
Low blue
High blue
Low color
High color
Opacity

#### Test purpose

- Create a test Picture entity
- Create an clampChannels filter and apply it to the test entity
- Update filter attributes and observe the effect they have on the entity

Touch test: not required

Annotated code