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Check if faces detected or not.

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Added if condition, whether faces are detected or not, will help to keep program running for some images.
If imwrite used along with imshow, it may produce error for :  No faces found.Aborting.. in function 'fit' (Bad Argument).
This commit is contained in:
Kushashwa Ravi Shrimali
2018-05-21 14:00:20 +05:30
committed by Alexander Alekhin
parent c818de992e
commit c3a2b42552
1 changed files with 19 additions and 12 deletions
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31
modules/face/samples/sampleDetectLandmarks.cpp
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@@ -75,19 +75,26 @@ int main(int argc,char** argv){
resize(img,img,Size(460,460), 0, 0, INTER_LINEAR_EXACT);
facemark->getFaces(img,faces);
vector< vector<Point2f> > shapes;
if(facemark->fit(img,faces,shapes))
{
for( size_t i = 0; i < faces.size(); i++ )
// Check if faces detected or not
// Helps in proper exception handling when writing images to the directories.
if(faces.size() != 0) {
if(facemark->fit(img,faces,shapes))
{
cv::rectangle(img,faces[i],Scalar( 255, 0, 0 ));
for( size_t i = 0; i < faces.size(); i++ )
{
cv::rectangle(img,faces[i],Scalar( 255, 0, 0 ));
}
for(unsigned long i=0;i<faces.size();i++){
for(unsigned long k=0;k<shapes[i].size();k++)
cv::circle(img,shapes[i][k],5,cv::Scalar(0,0,255),FILLED);
}
namedWindow("Detected_shape");
imshow("Detected_shape",img);
waitKey(0);
}
for(unsigned long i=0;i<faces.size();i++){
for(unsigned long k=0;k<shapes[i].size();k++)
cv::circle(img,shapes[i][k],5,cv::Scalar(0,0,255),FILLED);
}
namedWindow("Detected_shape");
imshow("Detected_shape",img);
waitKey(0);
} else {
cout << "Faces not detected." << endl;
}
return 0;
}
}