CODEWITHSUNDEEP
c++opencvimage-processingpattern-matching
Mo Beigi
Mo Beigi

Reputation: 1765

Match Image on Screen with Template Pictures

I'm looking to make a program that once run, will continuously look for an template image (stored in directory of program) to match in realtime with the screen. Once found, it will click on the image (ie the center of the coords of the best match). The images will be exact copies (size/color) so finding the match should not be very hard.

This process then continues with many other images and then resets to start again with the first image again but once I have the first part working I can just copy the code.

I have downloaded the OpenCV library as it has image matching tools but I am lost. Any help with writing some stub code or pointing me to a helpful resource is much appreciated. I have checked a lot of the OpenCV docs with no luck.

Thanks you.

Upvotes: 1

Views: 5210

Answers (2)

skm
skm

Reputation: 5679

void start()
{

    VideoCapture cap(0);
    Mat image;
    namedWindow(wndname,1);

    for(;;)
    {
        Mat frame;          
        cap >> frame; // get a new frame from camera

        "Load your template image here"
        "Declare a result image here"
        "Perform the templateMatching() between template image and frame and store the results of correlation in result image declared above"



        char c = cvWaitKey(33);
        if( c == 27 ) break;


   }

}

Upvotes: 1

skm
skm

Reputation: 5679

If you think that the template image would not be very different in the current frame then you should use matchTemplate() of openCV. Its very easy to use and will give you good results.

Have a look here for complete explanation http://docs.opencv.org/doc/tutorials/imgproc/histograms/template_matching/template_matching.html

Upvotes: 1

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