---
title: CIDetectorReturnSubFeatures
framework: coreimage
role: symbol
role_heading: Global Variable
path: coreimage/cidetectorreturnsubfeatures
---

# CIDetectorReturnSubFeatures

An option specifying whether to return feature information for components of detected features.

## Declaration

```swift
let CIDetectorReturnSubFeatures: String
```

## Discussion

Discussion The value of this key is an NSNumber object with a Boolean value. Use this option with the CIDetectorTypeText detector type to choose whether to detect only regions likely to contain text (false, the default) or to also identify sub-regions likely to contain individual characters of text (true).

## See Also

### Constants

- [CIDetectorImageOrientation](coreimage/cidetectorimageorientation.md)
- [CIDetectorEyeBlink](coreimage/cidetectoreyeblink.md)
- [CIDetectorSmile](coreimage/cidetectorsmile.md)
- [CIDetectorFocalLength](coreimage/cidetectorfocallength.md)
- [CIDetectorAspectRatio](coreimage/cidetectoraspectratio.md)