---
title: Compressed matte atom
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/track_matte_atom/compressed_matte_atom
---

# Compressed matte atom

An atom that specifies the image description structure and the matte data associated with a particular matte atom.

## Overview

Overview See Compressed matte atom ('kmat').

## See Also

### Data fields

- [Size](quicktime-file-format/track_matte_atom/size.md)
- [Type](quicktime-file-format/track_matte_atom/type.md)