# eVision

> eVision 26.10.0 documentation


2026, Euresys

## Pages in this subsection

- [Basic Operations Code Snippets](index.html.md): This section provides code snippets for common &#42;&#42;eVision&#42;&#42; classes.
- [Basic Types Code Snippets](basic_types/index.html.md): Browse code snippets demonstrating Basic Types usage in C++, C#, and Python for eVision machine vision applications.
- [Calibration Code Snippets](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 Code Snippet](basic_types/calibration/dotgridbasedcalibration.html.md): This code snippet shows how to perform a dot grid-based calibration.
- [Landmark-Based Calibration Code Snippet](basic_types/calibration/landmarkbasedcalibration.html.md): This code snippet shows how to perform a landmark-based calibration.
- [Calibration by Guesswork Code Snippet](basic_types/calibration/calibrationbyguesswork.html.md): This code snippet shows how to perform a calibration by guesswork.
- [Coordinates Transform Code Snippet](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 Code Snippet](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 Code Snippet](basic_types/loadingandsavingimages.html.md): This code snippet shows how to load and save an image.
- [Interfacing Third-Party Images Code Snippet](basic_types/interfacingthirdpartyimages.html.md): This code snippet shows how to link an eVision image to an externally allocated buffer.
- [Retrieving Pixel Values Code Snippet](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 Code Snippet](basic_types/importingbitmapfromresource.html.md): This code snippet shows the how to import a Bitmap from the resources.
- [ROI Placement Code Snippet](basic_types/roiplacement.html.md): This code snippet shows how to attach an ROI to an image and set its placement.
- [Vector Management Code Snippet](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 Code Snippet](basic_types/exceptionmanagement.html.md): This code snippet shows how to manage eVision exceptions.
- [ERegion Code Snippets](eregion/index.html.md): Browse code snippets demonstrating ERegion usage in C++, C#, and Python for eVision machine vision applications.
- [Basic Usage of Region Code Snippet](eregion/basicusage.html.md): This code snippet shows how to perform a threshold on a circular region in an image.
- [Preparing a Region Code Snippet](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.
- [Combining Regions Code Snippet](eregion/combineregions.html.md): This code snippet shows how to perform a threshold on a combined region in an image.
- [Converting a Result to a Region Code Snippet](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.
