# eVision

> eVision 26.10.0-beta.2.dev documentation


2026, Euresys

## Pages in this subsection

- [ERegion](index.html.md): Browse code snippets demonstrating ERegion usage in C++, C#, and Python for eVision machine vision applications.
- [Basic Usage](basicusage.html.md): This code snippet shows how to perform a threshold on a circular region in an image.
- [Prepare Once, Use Multiple Times](prepareonceusemultipletimes.html.md): This code snippet shows how to perform a threshold on a circular region in multiple image while preparing it only once.
- [Combine Regions](combineregions.html.md): This code snippet shows how to perform a threshold on a combined region in an image.
- [Tool Chain](toolchain.html.md): This code snippet shows how to perform a threshold on a region coming for a previous EasyFind process.

## Optional

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