---
title: globalSegmentationMask
framework: vision
role: symbol
role_heading: Instance Property
path: vision/vndetectedobjectobservation/globalsegmentationmask
---

# globalSegmentationMask

A resulting pixel buffer from a request to generate a segmentation mask for an image.

## Declaration

```swift
var globalSegmentationMask: VNPixelBufferObservation? { get }
```