VizionSDK with OpenCV

• This sample project demonstrates how to use CMake to build and run a C++ project integrating VizionSDK with OpenCV.
• In addition to the C++ examples, Python and C# examples with usage instructions are included in the documentation.

Sample Code Overview

The following sample programs demonstrate how to use VizionSDK (or pyvizionsdk / CSVizionSDK) with OpenCV for various camera and image processing tasks:

1. Image Display

displayImg : Captures images from the camera and displays them in a window using OpenCV’s imshow function.

2. Adjust Brightness & Capture Video

captureImg : Demonstrates how to adjust image brightness via VizionSDK and capture video frames using OpenCV’s VideoCapture.

3. eHDR Configuration

setehdr : Shows how to configure the eHDR maximum exposure setting and capture images using OpenCV’s VideoCapture.

⚠️ Warning

• eHDR features are only supported on the following devices:
  • VCI-AR0821 / VCI-AR0822
  • VCS-AR0821 / VCS-AR0822
  • VLS3-AR0821 / VLS3-AR0822
  • VLS-GM2-AR0821 /VLS-GM2-AR0822
  • TEVS-AR0821 / TEVS-AR0822
• Running the eHDR example on unsupported devices may cause undefined behavior.
• Make sure eHDR mode is enabled before running the eHDR example.

4. Save Images

saveImg : Captures images from the camera and saves them to disk using OpenCV’s imwrite function.

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Prerequisites

Before building and running this project, ensure you have the following installed:

1. CMake (Version 3.0 or newer):

   • CMake is required to configure the build.
   • If you don't have it, download and install it from the official CMake website.
   • Make sure the cmake executable is in your system's PATH. You can verify by running cmake --version in your terminal.

2. C++ Compiler (Supporting C++11):

   • A C++ compiler compatible with the C++11 standard is needed (e.g., GCC, Clang, MSVC). Install one suitable for your platform if necessary (e.g., build-essential on Ubuntu/Debian, Visual Studio C++ workload on Windows).

   If you're using Ubuntu, install with:

   sudo apt install cmake build-essential
   

3. OpenCV(version 4.9 or newer)

   • For C++ Development:
   • OpenCV can be downloaded at release page: OpenCV
     • Windows: Before building the sample code, please ensure the path in CMakeList.txt is correctly set to your local OpenCV installation.
     • Linux: To install OpenCV, please follow the steps provided in the official tutorial: OpenCV installation
   • For Python Development:
     Install with:

     pip install opencv-python
     

   • For C# Development:
     Install the OpenCVSharp4 NuGet package for .NET:

     dotnet add package OpenCvSharp4

     Note:
     Ensure that the OpenCvSharp4.runtime.{OS} package is also installed for your platform OS runtime dependencies.

Documents

• Github Pages: https://github.com/TechNexion
• VizionSDK Overview: https://developer.technexion.com/docs/vision-software/vizionsdk
• VizionSDK API User Guide: https://developer.technexion.com/docs/category/vizionsdk-api

Related links

• Technexion Main Page