---
title: revision
framework: createmlcomponents
role: symbol
role_heading: Instance Property
path: createmlcomponents/imagefeatureprint/revision
---

# revision

The feature extractor revision number.

## Declaration

```swift
var revision: Int { get set }
```

## Discussion

Discussion There are two Image Feature Print revisions: 1 and 2. In most cases revision 2 produces better models because it uses a smaller feature vector and better features. In iOS 12 or later, tvOS 12 or later, and macOS 10.14 or later, revision 1 takes images with a size of 299x299 and produces a 2048 feature vector. In iOS 17 or later, tvOS 17 or later, and macOS 14 or later, revision 2 takes images with a size of 360x360 and produces a 768 feature vector.

## See Also

### Getting the properties

- [cropAndScale](createmlcomponents/imagefeatureprint/cropandscale.md)
- [latestRevision](createmlcomponents/imagefeatureprint/latestrevision.md)