---
title: VNGenerateAttentionBasedSaliencyImageRequestRevision1
framework: vision
role: symbol
role_heading: Global Variable
path: vision/vngenerateattentionbasedsaliencyimagerequestrevision1
---

# VNGenerateAttentionBasedSaliencyImageRequestRevision1

A constant for specifying revision 1 of the image saliency request.

## Declaration

```swift
var VNGenerateAttentionBasedSaliencyImageRequestRevision1: Int { get }
```