---
title: contrast
framework: coreimage
role: symbol
role_heading: Instance Property
path: coreimage/cilineoverlay/contrast
---

# contrast

The amount of antialiasing to use on the edges produced by this filter.

## Declaration

```swift
var contrast: Float { get set }
```

## Discussion

Discussion Higher values produce higher contrast edges, that is, they’re less antialiased.

## See Also

### Instance Properties

- [nrNoiseLevel](coreimage/cilineoverlay/nrnoiselevel.md)
- [nrSharpness](coreimage/cilineoverlay/nrsharpness.md)
- [edgeIntensity](coreimage/cilineoverlay/edgeintensity.md)
- [inputImage](coreimage/cilineoverlay/inputimage.md)
- [threshold](coreimage/cilineoverlay/threshold.md)