OpenCV

问题 I want to find custom shape in OpenCV. Shape is previously defined. I want to detect if this shape is equal or not equal to the current shape using WebCam in real time. How can I do that? How to compare pre-defined custom shape and current shape? 回答1: As the commenters have eluded, you can use template matching to detect custom shapes. So What Is Template Matching? Template matching is a technique in digital image processing for finding small parts of an image which match a template image. It

问题 I want to find custom shape in OpenCV. Shape is previously defined. I want to detect if this shape is equal or not equal to the current shape using WebCam in real time. How can I do that? How to compare pre-defined custom shape and current shape? 回答1: As the commenters have eluded, you can use template matching to detect custom shapes. So What Is Template Matching? Template matching is a technique in digital image processing for finding small parts of an image which match a template image. It

问题 When I use CMake with FIND_PACKAGE( OpenCV REQUIRED ) , all components of OpenCV get included and all libs linked, and all paths show up in include dirs in VS. However, since OpenCV 2, every part of the lib can be included and linked to on its own. So if my project only uses the "core" and "imgproc" part of OpenCV, I dont want to bloat my project (and project files) by linking to all of OpenCV. Is it possible to only include part of it in CMake? 回答1: Since OpenCV 2.4.0 it is as simple as:

问题 When I use CMake with FIND_PACKAGE( OpenCV REQUIRED ) , all components of OpenCV get included and all libs linked, and all paths show up in include dirs in VS. However, since OpenCV 2, every part of the lib can be included and linked to on its own. So if my project only uses the "core" and "imgproc" part of OpenCV, I dont want to bloat my project (and project files) by linking to all of OpenCV. Is it possible to only include part of it in CMake? 回答1: Since OpenCV 2.4.0 it is as simple as:

问题 When I use CMake with FIND_PACKAGE( OpenCV REQUIRED ) , all components of OpenCV get included and all libs linked, and all paths show up in include dirs in VS. However, since OpenCV 2, every part of the lib can be included and linked to on its own. So if my project only uses the "core" and "imgproc" part of OpenCV, I dont want to bloat my project (and project files) by linking to all of OpenCV. Is it possible to only include part of it in CMake? 回答1: Since OpenCV 2.4.0 it is as simple as:

问题 I want to put/wrap images to 3D objects. To keep things simple and fast, instead of using(and learning) a 3D library I want to use mapping images. Mapping images are used in such a way: So you generate the mapping images once for each object and use the same mapping for all images you want to wrap. My question is how can I generate such mapping images (given the 3D model)? Since I don't know about the terminology my searches failed me. Sorry if I am using the wrong jargon. Below you can see a

问题 I want to put/wrap images to 3D objects. To keep things simple and fast, instead of using(and learning) a 3D library I want to use mapping images. Mapping images are used in such a way: So you generate the mapping images once for each object and use the same mapping for all images you want to wrap. My question is how can I generate such mapping images (given the 3D model)? Since I don't know about the terminology my searches failed me. Sorry if I am using the wrong jargon. Below you can see a

问题 For the last couple of hours I have been trying to get a basic OpenCV program to work in my Eclipse Mars IDE. The program consists of the following main.cpp: #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include <iostream> using namespace cv; using namespace std; int main( int argc, char** argv ) { if( argc != 2) { cout <<" Usage: display_image ImageToLoadAndDisplay" << endl; return -1; } Mat image; image = imread(argv[1], CV_LOAD_IMAGE_COLOR); // Read the file if(!

问题 For the last couple of hours I have been trying to get a basic OpenCV program to work in my Eclipse Mars IDE. The program consists of the following main.cpp: #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include <iostream> using namespace cv; using namespace std; int main( int argc, char** argv ) { if( argc != 2) { cout <<" Usage: display_image ImageToLoadAndDisplay" << endl; return -1; } Mat image; image = imread(argv[1], CV_LOAD_IMAGE_COLOR); // Read the file if(!

问题 For the last couple of hours I have been trying to get a basic OpenCV program to work in my Eclipse Mars IDE. The program consists of the following main.cpp: #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include <iostream> using namespace cv; using namespace std; int main( int argc, char** argv ) { if( argc != 2) { cout <<" Usage: display_image ImageToLoadAndDisplay" << endl; return -1; } Mat image; image = imread(argv[1], CV_LOAD_IMAGE_COLOR); // Read the file if(!