---
title: ReferenceImage
framework: arkit
role: symbol
role_heading: Structure
path: arkit/referenceimage
---

# ReferenceImage

A 2D image the system uses as a reference to find the same image in a person’s surroundings.

## Declaration

```swift
struct ReferenceImage
```

## Topics

### Creating a reference image

- [init(cgimage:physicalSize:orientation:)](arkit/referenceimage/init(cgimage:physicalsize:orientation:).md)
- [init(pixelBuffer:physicalSize:orientation:)](arkit/referenceimage/init(pixelbuffer:physicalsize:orientation:).md)
- [loadReferenceImages(inGroupNamed:bundle:)](arkit/referenceimage/loadreferenceimages(ingroupnamed:bundle:).md)

### Inspecting a reference image

- [physicalSize](arkit/referenceimage/physicalsize.md)
- [name](arkit/referenceimage/name.md)
- [resourceGroupName](arkit/referenceimage/resourcegroupname.md)
- [description](arkit/referenceimage/description.md)

### Default Implementations

- [Equatable Implementations](arkit/referenceimage/equatable-implementations.md)

## Relationships

### Conforms To

- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Image tracking

- [Tracking and altering images](arkit/tracking-and-altering-images.md)
- [Detecting Images in an AR Experience](arkit/detecting-images-in-an-ar-experience.md)
- [Tracking preregistered images in 3D space](visionos/tracking-images-in-3d-space.md)
- [ImageTrackingProvider](arkit/imagetrackingprovider.md)
- [ImageAnchor](arkit/imageanchor.md)