---
title: highlightShadowAdjust()
framework: coreimage
role: symbol
role_heading: Type Method
path: coreimage/cifilter-swift.class/highlightshadowadjust()
---

# highlightShadowAdjust()

Adjusts the highlights of colors to reduce shadows.

## Declaration

```swift
class func highlightShadowAdjust() -> any CIFilter & CIHighlightShadowAdjust
```

## Return Value

Return Value The modified image.

## Discussion

Discussion This method applies the highlight-shadow adjust filter to an image. The effect adjusts shadows, while preserving spatial detail in the image. The highlight-shadow adjust filter uses the following properties: The following code creates a filter that results in a brighter image with reduced shadows: func highlightShadowAdjust(inputImage: CIImage) -> CIImage {     let highlightShadowAdjustFilter = CIFilter.highlightShadowAdjust()     highlightShadowAdjustFilter.inputImage = inputImage     highlightShadowAdjustFilter.shadowAmount = 1     return highlightShadowAdjustFilter.outputImage! }

## See Also

### Filters

- [blendWithAlphaMask()](coreimage/cifilter-swift.class/blendwithalphamask().md)
- [blendWithBlueMask()](coreimage/cifilter-swift.class/blendwithbluemask().md)
- [blendWithMask()](coreimage/cifilter-swift.class/blendwithmask().md)
- [blendWithRedMask()](coreimage/cifilter-swift.class/blendwithredmask().md)
- [bloom()](coreimage/cifilter-swift.class/bloom().md)
- [cannyEdgeDetector()](coreimage/cifilter-swift.class/cannyedgedetector().md)
- [comicEffect()](coreimage/cifilter-swift.class/comiceffect().md)
- [coreMLModel()](coreimage/cifilter-swift.class/coremlmodel().md)
- [crystallize()](coreimage/cifilter-swift.class/crystallize().md)
- [depthOfField()](coreimage/cifilter-swift.class/depthoffield().md)
- [edges()](coreimage/cifilter-swift.class/edges().md)
- [edgeWork()](coreimage/cifilter-swift.class/edgework().md)
- [gaborGradients()](coreimage/cifilter-swift.class/gaborgradients().md)
- [gloom()](coreimage/cifilter-swift.class/gloom().md)
- [heightFieldFromMask()](coreimage/cifilter-swift.class/heightfieldfrommask().md)