# eVision

> eVision 26.10.0-beta.2.dev documentation


2026, Euresys

## Pages in this subsection

- [Reading Data Matrix Codes](readingmatrixcodesfromanimage.html.md): This code snippet shows how to read data matrix codes and retrieve the decoded string.
- [Learning a Data Matrix Code](readingwithpriorlearning2.html.md): This code snippet shows how to learn from a given image, perform the reading and retrieve the decoded string.
- [Reading a Grid of Matrix Codes](readingagridofmatrixcodes.html.md): This code snippet shows how to read matrixcodes that are disposed in a 5 by 3 grid with 10% overlap between grid cells.
- [Grading a Data Matrix Code](inspectingprintqualitygrades.html.md): This code snippet shows how to read a data matrix code and retrieve its print quality grades.
- [Asynchronous Processing](asynchronousprocessing.html.md): This code snippet shows how to read data matrix codes asynchronously from three separate images. The code in this snippet is valid for C++11 and newer.

## Optional

- [Top-level llms.txt](../../../../../llms.txt): Complete documentation index.