---
title: regionOfInterest
framework: corevideo
role: symbol
role_heading: Type Property
path: corevideo/cvimagebufferattachmentkeydefinitions/regionofinterest
---

# regionOfInterest

Specifies region of interest that image statistics cover.

## Declaration

```swift
static var regionOfInterest: CVAttachmentKeyDefinition<Self.ShouldPropagate, CGRect> { get }
```