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No matching function for call to 'rectangle'

asked 2019-04-24 09:09:53 -0500

mor gravatar image

I am trying to draw an rectangle in video but I get this error :" No matching function for call to 'rectangle' " I searched for a solution online but with no success. here are my imports :

#import <opencv2/opencv.hpp>
#import <opencv2/videoio/cap_ios.h>
#import <opencv2/features2d.hpp>
#import <opencv2/objdetect.hpp>

and here is the code itself:

face_cascade.detectMultiScale(image, faces, 1.3, 5);
printf("%zd face(s) are found.\n", faces.size());
for(int i = 0; i< faces.size(); i++){
    cv::Rect r = faces[i];
    x = r.x;
    y = r.y;
    w = r.width;
    h = r.height;
    rectangle(image,(x,y),(x+w,y+h),(255,0,0),2); // my error is here
}
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answered 2019-04-24 13:35:21 -0500

supra56 gravatar image

updated 2019-04-24 13:46:50 -0500

Change this:

 rectangle(image,(x,y),(x+w,y+h),(255,0,0),2);

to

 rectangle(image,Point(x,y),Point(x+w,y+h),Scalar(255,0,0),2);
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Comments

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@supra56 i updated your answer although i am still not sure if he use c++ code

sturkmen gravatar imagesturkmen ( 2019-04-24 13:52:54 -0500 )edit

@sturkmen. Thanks! I didn't know that

supra56 gravatar imagesupra56 ( 2019-04-24 14:00:41 -0500 )edit
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Asked: 2019-04-24 09:09:53 -0500

Seen: 27 times

Last updated: Apr 24