opencv3.0

I have just started my learning on SVM using C++ OpenCV and was referring to the SVM documentation here . I wanted to try out the sample source code from the link to get familiar with it first but I couldn't run the sample source code. It returns the error : Error 1 error C2065: 'CvSVMParams' : undeclared identifier I'm using Visual Studio 2012 with OpenCV 3.0.0. The setup process should be correct as all other codes are working well except this. Miki A lot of things changed from OpenCV 2.4 to OpenCV 3.0 . Among others, the machine learning module, which isn't backward compatible. This is the

I'd like to extract the color palette of an image, similar to this (from here ): I need it to extract specific colors like yellow, green, and brown and display the percentage of the area covered by that color. Also, I can add more colors to extract. How can I reduce the number of colors in the original image, and how can I get the color palette? Miki There are 3 different things going on here. Reduce the number of colors of an image Get the different colors of an image Get the color name Reduce the number of colors There are many techniques to reduce the number of colors. Here you can see how

I have a color that I want to convert to a different color space. Is it possible to use cvtColor on a cv::Vec3f directly without creating a 1x1 cv::Mat and populating it with that pixel, using cvtColor on the cv::Mat , then getting the only pixel out of the output? I have tried the following, but it doesn't seem to like getting passed a vector. Any suggestions? #include <iostream> #include <opencv2/opencv.hpp> int main(int, char*[]) { cv::Vec3f hsv; hsv[0] = .9; hsv[1] = .8; hsv[2] = .7; std::cout << "HSV: " << hsv << std::endl; cv::Vec3b bgr; cvtColor(hsv, bgr, CV_HSV2BGR); // OpenCV Error:

I want to get a position when move and click mouse in picturebox. I want to create rectangle in the image window when and where a mouse is clicked. I have a simple code from document #include "stdafx.h" #include "opencv2/highgui/highgui.hpp" #include <iostream> using namespace std; using namespace cv; void CallBackFunc(int event, int x, int y, int flags, void* userdata) { if ( event == EVENT_LBUTTONDOWN ) { cout << "Left button of the mouse is clicked - position (" << x << ", " << y << ")" << endl; } else if( event == EVENT_RBUTTONDOWN ) { cout << "Right button of the mouse is clicked -

I build the OpenCV 3.0 from source. And with the contrib repo for some extra modules. And I manually setup my VS2013 project to use the generated lib files. My code is simple for now: #include "opencv2\core\core.hpp" #include "opencv2\imgcodecs\imgcodecs.hpp" int _tmain(int argc, _TCHAR* argv[]) { cv::Mat image = cv::imread("img.jpg"); return 0; } But it gave me these errors when in VS 2013 community version: I see similar thread , they said it is caused by the x86/x64 issue. But My project is already x86. And the OpenCV I built is also targeting x86 (see below). What reason could it be? ADD 1