Question

void detect_eye_in_image()
{
    CvRect *face = (CvRect*)cvGetSeqElem(faces, 0);

printf("\nIn detect_eye_in_image() %d %d %d %d\n\n",imgcpy->height,imgcpy->width,face->width,face->height);
        cvSetImageROI(
        imgcpy,                    /* the source image */
        cvRect(
            face->x,            /* x = start from leftmost */
            face->y , /* y = a few pixels from the top */
            face->width,        /* width = same width with the face */
            face->height/3    /* height = 1/3 of face height */
        )
    );

printf("\nIn detect_eye_in_image()");
        CvSeq *eyes = cvHaarDetectObjects(
        imgcpy,            /* the source image, with the
                           estimated location defined */
        cascade,      /* the eye classifier */
        storage,        /* memory buffer */
        1.15, 3, 0,     /* tune for your app */
        cvSize(25,25)  /* minimum detection scale */
    );
   printf("\nIn detect_eye_in_image()");
    /* draw a rectangle for each detected eye */
   // for( i = 0; i < (eyes ? eyes->total : 0); i++ ) 
    {
        /* get one eye */
        CvRect *eye = (CvRect*)cvGetSeqElem(eyes, 0);
        /* draw a red rectangle */
        cvRectangle(
            imgcpy,
            cvPoint(eye->x, eye->y),
            cvPoint(eye->x + eye->width, eye->y + eye->height),
            CV_RGB(255, 0, 0),
            1, 8, 0
        );
    }
printf("\nIn detect_eye_in_image()");
    Show_Image(imgcpy);

cvResetImageROI(imgcpy);
}

在上面的函数中，我继续得到以下输出：

在detect_eye_in_image（）154 154 154 154

OpenCV错误：断言失败（rect.width＆gt; = 0＆amp;＆amp; rect.height＆gt; = 0＆amp;＆amp;   rect.x＆lt; image-＆gt; width＆amp;＆amp; rect.y＆lt; image-＆gt; height＆amp;＆amp; rect.x + rect.width＆gt; =（int）（rect.widt h＆gt; 0）＆amp;＆amp; rect.y + rect.height＆gt; =（int）（rect.height＆gt; 0））在未知函数中，file ........ \ ocv \ opencv \ src \ cxcore \ cxarray.cpp，line 3000

如何解决这个问题？

Answer 1

您可能在图像尺寸之外工作。您传递给cvSetImageROI函数的任何值是否位于图像boudaries之外？

OpenCV错误：断言失败

1 个答案: