使用JavaCV检测图像中的模式-PatterndetectioninanimagewithJavaCV

I'm trying to create a code which should at the end recognize some pattern/shape in a picture.

我正在尝试创建一个代码,最终应该识别图片中的某些图案/形状。

I've had some trouble when I tried to draw the shape on the pic ("Output3" in this case). The program seems not to end. I think there is a infinite loop with the while function. The program doesn't display the output3. What's the issue?

当我试图在图片上绘制形状时我遇到了一些麻烦(在这种情况下为“Output3”)。该计划似乎没有结束。我认为while函数有一个无限循环。该程序不显示output3。有什么问题?

INPUT image:

OUTPUT2 image:

---

public class Hello {

/**
 * @param args
 * @throws IOException 
 */

public static void main(String[] args) throws IOException {
    // TODO Auto-generated method stub

    // Memory storage
    CvMemStorage memory = CvMemStorage.create();
    CvSeq cOntours= new CvSeq(null);

    // Display original contour image .png, then GRAYSCALE and display in CanvasFrame
    IplImage image = cvLoadImage("contour.jpg", CV_LOAD_IMAGE_GRAYSCALE);   
    CanvasFrame canvas = new CanvasFrame("Output", 1);
    CanvasFrame canvas2 = new CanvasFrame("Output2", 1);
    CanvasFrame canvas3 = new CanvasFrame("Output3", 1);
    canvas.showImage(image);

    // thresholding
    cvSmooth(image, image, CV_BLUR, 9 , 9, 2, 2);
    cvThreshold(image, image, 155, 255, CV_THRESH_BINARY);

    cvCanny(image, image, 20*7*7, 40*7*7, 7);
    cvDilate(image, image, null, 1);


    canvas2.showImage(image);
    cvSaveImage("output2.jpg", image);

    // finding contours
    cvFindContours(image, memory, contours, Loader.sizeof(CvContour.class), CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE, cvPoint(0,0));

    while(contours != null && !contours.isNull()) {
        if(contours.elem_size() > 0) {
            CvSeq approx = cvApproxPoly(contours, Loader.sizeof(CvContour.class), memory, CV_POLY_APPROX_DP, (int) cvContourPerimeter(contours)*0.02, 0);
            cvDrawContours(image, approx, CvScalar.BLUE, CvScalar.BLUE, -1,1, CV_AA);
        }
        contours.h_next();
    }

    canvas3.showImage(image);
}

My goal is to take a photo, send it to the program which should return:

我的目标是拍照,将其发送到应该返回的程序:

• This is a square

这是一个正方形

• This is a rectangle

这是一个矩形

• This is a circle

这是一个圆圈

• This is an hexagon

这是一个六边形

1 个解决方案