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# VNHomographicImageRegistrationRequest

An image-analysis request that determines the perspective warp matrix necessary to align the content of two images.

```
class VNHomographicImageRegistrationRequest
```

## Overview

Create and perform a homographic image registration request to align content in two images through a homography. A *homography* is an isomorphism of projected spaces, a bijection that maps lines to lines.

## Topics

### Accessing the Results

[`results`](/documentation/Vision/VNHomographicImageRegistrationRequest/results)

The results of the image registration request.

### Identifying Request Revisions

[`VNHomographicImageRegistrationRequestRevision1`](/documentation/Vision/VNHomographicImageRegistrationRequestRevision1)

A constant for specifying revision 1 of the homographic image registration request.


---

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