guys m new to opencv and programming. i tried executing the SVM code in pdf n getting the above exception.. please help me in this..
include "stdafx.h"
include <cv.h>
include <cxcore.h>
include <highgui.h>
include <ml.h>
//#include <opencv2 core="" core.hpp=""> //#include <opencv2 highgui="" highgui.hpp=""> //#include <opencv2 ml="" ml.hpp="">
using namespace cv; using namespace std;
int main() { // Data for visual representation int width = 512, height = 512; Mat image = Mat::zeros(height, width, CV_8UC3);
// Set up training data float labels[4] = {1.0, -1.0, -1.0, -1.0}; Mat labelsMat(3, 1, CV_32FC1, labels);
float trainingData[4][2] = { {501, 10}, {255, 10}, {501, 255}, {10, 501} }; Mat trainingDataMat(3, 2, CV_32FC1, trainingData);
// Set up SVM’s parameters CvSVMParams params; params.svm_type = CvSVM::C_SVC; params.kernel_type = CvSVM::LINEAR; params.term_crit = cvTermCriteria(CV_TERMCRIT_ITER, 100, 1e-6);
// Train the SVM CvSVM SVM; SVM.train(trainingDataMat, labelsMat, Mat(), Mat(), params);
Vec3b green(0,255,0), blue (255,0,0); // Show the decision regions given by the SVM for (int i = 0; i <2; ++i) for (int j = 0; j <2; ++j) { Mat sampleMat = (Mat_<float>(1,2) << i,j); float response = SVM.predict(sampleMat);
if (response == 1) image.at<vec3b>(j, i) = green; else if (response == -1) image.at<vec3b>(j, i) = blue; }
// Show the training data int thickness = -1; int lineType = 8; circle( image, Point(501, 10), 5, Scalar( 0, 0, 0), thickness, lineType); circle( image, Point(255, 10), 5, Scalar(255, 255, 255), thickness, lineType); circle( image, Point(501, 255), 5, Scalar(255, 255, 255), thickness, lineType); circle( image, Point( 10, 501), 5, Scalar(255, 255, 255), thickness, lineType);
// Show support vectors thickness = 2; lineType = 8; int c = SVM.get_support_vector_count();
for (int i = 0; i < c; ++i) { const float* v = SVM.get_support_vector(i); circle( image, Point( (int) v[0], (int) v[1]), 6, Scalar(128, 128, 128), thickness, lineType); }
imwrite("result.png", image); // save the image
imshow("SVM Simple Example", image); // show it to the user waitKey(0);
}
i get only 1 exception i.e mentioned above when i add ml210.lib to the linker.. if i do not add ml210.lib to d linker i get d following errors..
1>svm.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall CvSVM::~CvSVM(void)" (??1CvSVM@@UAE@XZ) referenced in function _main
1>svm.obj : error LNK2019: unresolved external symbol "public: virtual float const * __thiscall CvSVM::get_support_vector(int)const " (?get_support_vector@CvSVM@@UBEPBMH@Z) referenced in function _main
1>svm.obj : error LNK2019: unresolved external symbol "public: virtual int __thiscall CvSVM::get_support_vector_count(void)const " (?get_support_vector_count@CvSVM@@UBEHXZ) referenced in function _main
1>svm.obj : error LNK2019: unresolved external symbol "public: virtual float __thiscall CvSVM::predict(class cv::Mat const &,bool)const " (?predict@CvSVM@@UBEMABVMat@cv@@_N@Z) referenced in function _main
1>svm.obj : error LNK2019: unresolved external symbol "public: virtual bool __thiscall CvSVM::train(class cv::Mat const &,class cv::Mat const &,class cv::Mat const &,class cv::Mat const &,struct CvSVMParams)" (?train@CvSVM@@UAE_NABVMat@cv@@000UCvSVMParams@@@Z) referenced in function _main
1>svm.obj : error LNK2019: unresolved external symbol "public: __thiscall CvSVM::CvSVM(void)" (??0CvSVM@@QAE@XZ) referenced in function _main
1>svm.obj : error LNK2019: unresolved external symbol "public: __thiscall CvSVMParams::CvSVMParams(void)" (??0CvSVMParams@@QAE@XZ) referenced in function _main
1>C:\Users\DELL\Desktop\svm\Debug\svm.exe : fatal error LNK1120: 7 unresolved externals
Any help would be greatly appreciated.. Thanks in advance..
