---
title: regionOfInterest
framework: vision
role: symbol
role_heading: Instance Property
path: vision/vnimagebasedrequest/regionofinterest
---

# regionOfInterest

The region of the image in which Vision will perform the request.

## Declaration

```swift
var regionOfInterest: CGRect { get set }
```

## Mentioned in

Detecting Human Body Poses in Images

## Discussion

Discussion The rectangle is normalized to the dimensions of the processed image.  Its origin is specified relative to the image’s lower-left corner. The default value is { { 0, 0 }, { 1, 1 } }. important: The request will fail to perform if you set this property to a rectangle outside the normalized coordinate space.