---
title: kCGImagePropertyExifSpatialFrequencyResponse
framework: imageio
role: symbol
role_heading: Global Variable
path: imageio/kcgimagepropertyexifspatialfrequencyresponse
---

# kCGImagePropertyExifSpatialFrequencyResponse

The spatial frequency table and spatial frequency response values in the width, height, and diagonal directions.

## Declaration

```swift
let kCGImagePropertyExifSpatialFrequencyResponse: CFString
```

## Discussion

Discussion For more information, see ISO 12233.

## See Also

### Image Quality

- [kCGImagePropertyExifCFAPattern](imageio/kcgimagepropertyexifcfapattern.md)
- [kCGImagePropertyExifBrightnessValue](imageio/kcgimagepropertyexifbrightnessvalue.md)
- [kCGImagePropertyExifLightSource](imageio/kcgimagepropertyexiflightsource.md)
- [kCGImagePropertyExifFlash](imageio/kcgimagepropertyexifflash.md)
- [kCGImagePropertyExifContrast](imageio/kcgimagepropertyexifcontrast.md)
- [kCGImagePropertyExifSaturation](imageio/kcgimagepropertyexifsaturation.md)
- [kCGImagePropertyExifSharpness](imageio/kcgimagepropertyexifsharpness.md)
- [kCGImagePropertyExifGamma](imageio/kcgimagepropertyexifgamma.md)
- [kCGImagePropertyExifWhiteBalance](imageio/kcgimagepropertyexifwhitebalance.md)