---
title: Query images
order: 60
---

Images are incredibly useful, however there are many ways to store and manipulate them.
This example focuses on querying image frames from a catalog server.

The dependencies in this example require `rerun-sdk[all]`.

## Setup

Simplified setup to launch the local server for demonstration.
In practice you'll connect to your cloud instance.

snippet: howto/query_images[setup]

## Compressed image

Compressed images are just stored as a string of bytes, so you can query them directly and transform back into a raw image.

snippet: howto/query_images[compressed_image]

## Raw image

Raw images are stored in a flattened layout, so we need to reshape them.
These format details are written to the RRD when images are logged.

snippet: howto/query_images[raw_image]