# Image Sets

## Upload Image sets

To use images as pipeline input, you must first upload them to the server.

From the left-side menu, choose **Images** to open the image management page.
This page lists images grouped into directories called *Image Sets*.

The application does not provide any default images, so the list is empty initially.

![Image Uploader](../../_assets/ViPPET-UI-Images-Uploader-light.png)

You can use the uploader to add your own image sets. The uploader accepts packages in any of the following formats:

- `.zip`
- `.tar`
- `.tar.gz`
- `.tgz`

All images in a package must have **the same dimensions** and extension. The maximum allowed package size is **2 GB**.

After upload, the images are extracted into a directory named after the package file (without its extension).
This directory name is then used as the *Image Set* name when selecting images as pipeline input.

> **Note**: During upload, images are processed in alphabetical order and then renamed to the
> `<file_name>_<NNNN>.<ext>` pattern.

To preview images in a set, click the set name.

![Image Sets](../../_assets/ViPPET-UI-Images-Sets-light.png)

The details page displays all images in the selected set, along with their basic properties and previews.

![Images in Set](../../_assets/ViPPET-UI-Images-In-Set-light.png)

## Selecting an image set as pipeline input

To use an image set as pipeline input, open the Pipeline Builder and click the **Input** block to see the properties.

![Pipeline Input](../../_assets/ViPPET-UI-Images-Pipeline-Input-light.png)

From the *Source Type* dropdown, select **Image Set**.

![Pipeline Source Type](../../_assets/ViPPET-UI-Images-Pipeline-Source-Type-light.png)

Then, from the *Source* dropdown, select the desired image set.

![Pipeline Source](../../_assets/ViPPET-UI-Images-Pipeline-Source-light.png)

The selected image set will now be used as the pipeline input.