---
title: cleanAperture
framework: avfoundation
role: symbol
role_heading: Type Property
path: avfoundation/avassetimagegenerator/aperturemode-swift.struct/cleanaperture
---

# cleanAperture

A mode that applies both pixel aspect ratio and clean aperture.

## Declaration

```swift
static let cleanAperture: AVAssetImageGenerator.ApertureMode
```

## Discussion

Discussion An image’s clean aperture is a region of video free from transition artifacts caused by the encoding of the signal.

## See Also

### Aperture modes

- [encodedPixels](avfoundation/avassetimagegenerator/aperturemode-swift.struct/encodedpixels.md)
- [productionAperture](avfoundation/avassetimagegenerator/aperturemode-swift.struct/productionaperture.md)