The new OpenCV C++ interface has made the process of image loading and display much easier. If you are a bit familiar with MATLAB then it is even more easier for you. Because in many cases, the MATLAB function names are directly used in OpenCV.
A snippet in OpenCV for some useful mathematical operations. It mostly focuses on the old opencv style matrix to new opencv style matrix conversion (and vice-versa) and some elementary mathematical operations. It also includes a trivial matrix display function. I’ll give a more robust matrix display function in future. Continue reading
This tutorial guides you through the process of installing OpenCV 2.3.1 in windows using Visual Studio 10. OpenCV changes its installation process from version to version and sometimes make it too confusing to work properly. In this tutorial I’ll try to mention as much details as possible in the installation process of OpenCV. Continue reading
I did not check with OpenCV for a few months. Today I noticed that a new version of OpenCV is released. This wonderful vision library is getting better and better in every release. Last time, I felt poorly about the documentation on OpenCV. I found most of its documents are just the comments provided during writing the codes which somebody has extracted using tools like Doxygen etc. Now in 2.3, the documentation page has been changed thoroughly. It has been divided into three major parts: API reference, User Guide and Tutorials. The tutorials part is open for anybody to contribute on a specific topic. I am hoping to write something here soon.
Suppose DoIt is a function that takes a cv::Mat as argument and suppose AMat is a cv::Mat. In openCV 2.1.0
//You cannot do this DoIt(AMat*50.0); //Or this DoIt((cv::Mat)AMat*50.0); //You have to do either this: cv:Mat temp = AMat*50; DoIt(temp); //Or this DoIt((cv::Mat)(AMat*50.0)); //Or this DoIt(cv::Mat(AMat*50.0));