---
title: inputFaceObservations
framework: vision
role: symbol
role_heading: Instance Property
path: vision/detectfacelandmarksrequest/inputfaceobservations
---

# inputFaceObservations

An array of face-observation objects to process as part of the request.

## Declaration

```swift
var inputFaceObservations: [FaceObservation]?
```

## Discussion

Discussion The default is nil. When nil, Vision first performs a DetectFaceRectanglesRequest and processes all faces detected.