---
title: InstanceMaskObservation
framework: vision
role: symbol
role_heading: Structure
path: vision/instancemaskobservation
---

# InstanceMaskObservation

An observation that contains an instance mask that labels instances in the mask.

## Declaration

```swift
struct InstanceMaskObservation
```

## Topics

### Creating an observation

- [init(_:)](vision/instancemaskobservation/init(_:).md)

### Inspecting an observation

- [RequestDescriptor](vision/requestdescriptor.md)

### Generating a mask

- [generateMask(for:)](vision/instancemaskobservation/generatemask(for:).md)
- [generateMaskedImage(for:imageFrom:croppedToInstancesExtent:)](vision/instancemaskobservation/generatemaskedimage(for:imagefrom:croppedtoinstancesextent:).md)
- [generateScaledMask(for:scaledToImageFrom:)](vision/instancemaskobservation/generatescaledmask(for:scaledtoimagefrom:).md)

### Getting instances

- [instanceAtPoint(_:)](vision/instancemaskobservation/instanceatpoint(_:).md)
- [allInstances](vision/instancemaskobservation/allinstances.md)
- [allInstancesMask](vision/instancemaskobservation/allinstancesmask.md)
- [PixelBufferObservation](vision/pixelbufferobservation.md)

## Relationships

### Conforms To

- [Copyable](swift/copyable.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Decodable](swift/decodable.md)
- [Encodable](swift/encodable.md)
- [Equatable](swift/equatable.md)
- [Escapable](swift/escapable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [VisionObservation](vision/visionobservation.md)