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

# crystallize()

Creates an image made with a series of colorful polygons.

## Declaration

```swift
class func crystallize() -> any CIFilter & CICrystallize
```

## Return Value

Return Value The modified image.

## Discussion

Discussion This method applies the crystallize filter to an image. The effect creates polygon-shaped color blocks by aggregating pixel-color values. The crystallize filter uses the following properties: The following code creates a filter that results in an image made of small polygons: func crystalize(inputImage: CIImage) -> CIImage {     let crystalizefilter = CIFilter.crystallize()     crystalizefilter.inputImage = inputImage     crystalizefilter.radius = 50     crystalizefilter.center = CGPoint(x: 2016, y: 1512)     return crystalizefilter.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)
- [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)
- [hexagonalPixellate()](coreimage/cifilter-swift.class/hexagonalpixellate().md)