---
title: CIDetectorEyeBlink
framework: coreimage
role: symbol
role_heading: Global Variable
path: coreimage/cidetectoreyeblink
---

# CIDetectorEyeBlink

An option for whether Core Image will perform additional processing to recognize closed eyes in detected faces.

## Declaration

```swift
let CIDetectorEyeBlink: String
```

## See Also

### Constants

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