# eVision

> eVision 26.10.0-beta.2.dev documentation


2026, Euresys

## Pages in this subsection

- [Base Classes](index.html.md): This section provides code snippets for common **eVision** classes.
- [Basic Types](basic_types/index.html.md): Browse code snippets demonstrating Basic Types usage in C++, C#, and Python for eVision machine vision applications.
- [Calibration](basic_types/calibration/index.html.md): Code snippets demonstrating Calibration with eVision's Basic Types, shown in C++, C#, and Python.
- [Dot Grid-Based Calibration](basic_types/calibration/dotgridbasedcalibration.html.md): This code snippet shows how to perform a dot grid-based calibration.
- [Landmark-Based Calibration](basic_types/calibration/landmarkbasedcalibration.html.md): This code snippet shows how to perform a landmark-based calibration.
- [Calibration by Guesswork](basic_types/calibration/calibrationbyguesswork.html.md): This code snippet shows how to perform a calibration by guesswork.
- [Coordinates Transform](basic_types/calibration/coordinatestransform.html.md): This code snippet shows how to convert coordinates from the Sensor space to the World space and conversely.
- [Image Unwarping](basic_types/calibration/imageunwarping.html.md): This code snippet shows how to unwarp an image based on the computed calibration coefficients.
- [Loading and Saving Images](basic_types/loadingandsavingimages.html.md): This code snippet shows how to load and save an image.
- [Interfacing Third-Party Images](basic_types/interfacingthirdpartyimages.html.md): This code snippet shows how to link an eVision image to an externally allocated buffer.
- [Retrieving Pixel Values](basic_types/retrievingpixelvalues.html.md): This code snippet shows the recommended method (fastest) to access the pixel values in a BW8 image.
- [Importing Bitmap from the Resources](basic_types/importingbitmapfromresource.html.md): This code snippet shows the how to import a Bitmap from the resources.
- [ROI Placement](basic_types/roiplacement.html.md): This code snippet shows how to attach an ROI to an image and set its placement.
- [Vector Management](basic_types/vectormanagement.html.md): This code snippet shows how to create a vector, fill it and retrieve the value of a given element.
- [Exception Management](basic_types/exceptionmanagement.html.md): This code snippet shows how to manage eVision exceptions.
- [ERegion](eregion/index.html.md): Browse code snippets demonstrating ERegion usage in C++, C#, and Python for eVision machine vision applications.
- [Basic Usage](eregion/basicusage.html.md): This code snippet shows how to perform a threshold on a circular region in an image.
- [Prepare Once, Use Multiple Times](eregion/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](eregion/combineregions.html.md): This code snippet shows how to perform a threshold on a combined region in an image.
- [Tool Chain](eregion/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.