# Flip Augmentation

Randomly flip (reflect) an image vertically or horizontally to help your model be insensitive to subject orientation.

* **Horizontal:** Flip the image’s [NumPy array](https://numpy.org/) in the left/right direction.
* **Vertical:** Flip the image’s [NumPy array](https://numpy.org/) in the up/down direction.

## Example

<figure><img src="https://662926385-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M6S9nPJhEX9FYH6clfW%2Fuploads%2Fgit-blob-2347cf534e5a3427388b281e11477df72becafab%2Fimage%20(5).png?alt=media" alt=""><figcaption><p>Original Image</p></figcaption></figure>

<figure><img src="https://662926385-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M6S9nPJhEX9FYH6clfW%2Fuploads%2Fgit-blob-24d7af3160ff79e7aa632e953670bc2d7cf47995%2Fimage.png?alt=media" alt=""><figcaption><p>Flip Augmentation Horizontal</p></figcaption></figure>

<figure><img src="https://662926385-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M6S9nPJhEX9FYH6clfW%2Fuploads%2Fgit-blob-de3aaa510e2532edf59b681b68aca5428fda19a4%2Fimage.png?alt=media" alt=""><figcaption><p>Flip Augmentation Vertical</p></figcaption></figure>

## Learn More

* [See how Flip Augmentation Improves Model Performance](https://blog.roboflow.com/how-flip-augmentation-improves-model-performance/)