*What I do:*
1.I Write the face detection in opencv c++ and call from android using
wrapper.
2.I used android native camera and pass image(Mat) to the detection
method(detection method is shown below)
3.Its working in android 4.0 to android 5.1 but while running in android
6.0, the application crashes
4.I added LOGD inside the c++ source code to find exactly where the crash
happen.
5.Crashing happening at always at the end of the detection method in
Android 6.0
6.Sample Code
CascadeClassifier cascade;
Rect detection(Mat& image){
LOGD("face1");
vector<Rect> val;
Mat im(image.size(),CV_8UC1);
if(image.channels()==3)
{
cvtColor(image,im,COLOR_BGR2GRAY);
}
else
{
image.copyTo(im);
}
LOGD("face2");
cascade.detectMultiScale(im, val,
1.1,2,CASCADE_FIND_BIGGEST_OBJECT,Size(image.cols/3,image.rows/3));
LOGD("face3");
if(val.size()==0)
{
return Rect(0,0,0,0);
}
LOGD("face4");
return val[0];}
7.Calling method in c++
Rect ROI=detection(image);
LOGD("val1: %d",ROI.x);
LOGD("val2: %d",ROI.y);
LOGD("val3: %d",ROI.width);
LOGD("val4: %d",ROI.height);
8.Android logcat message
When not giving face to camera it show in logcat like this
09-21 18:25:52.612 20436 20615 D qualitycheck: quality109-21 18:25:52.612 20436
20615 D qualitycheck: quality309-21 18:25:52.612 20436 20615 D qualitycheck:
quality409-21 18:25:52.612 20436 20615 D qualitycheck: face109-21 18:25:52.622
20436 20615 D qualitycheck: face209-21 18:25:52.642 20436 20615 D qualitycheck:
face309-21 18:25:52.642 20436 20615 D qualitycheck: quality2709-21 18:25:52.642
20436 20615 D qualitycheck: res: 009-21 18:25:52.642 20436 20615 D
qualitycheck: res1: 009-21 18:25:52.642 20436 20615 D qualitycheck: res2:
009-21 18:25:52.642 20436 20615 D qualitycheck: res3: 009-21 18:25:52.642 20436
20615 D qualitycheck: quality2809-21 18:25:52.642 20436 20615 D qualitycheck:
quality1809-21 18:25:52.642 20436 20615 I QualityCheck : 1000
When giving face to camera it show in logcat like this
09-21 18:25:57.662 20436 20615 D qualitycheck: quality109-21 18:25:57.662 20436
20615 D qualitycheck: quality309-21 18:25:57.662 20436 20615 D qualitycheck:
quality409-21 18:25:57.662 20436 20615 D qualitycheck: face109-21 18:25:57.662
20436 20615 D qualitycheck: face209-21 18:25:57.702 20436 20615 D qualitycheck:
face309-21 18:25:57.702 20436 20615 D qualitycheck: face4
then application crashes
9.The log "face4" is shown ,but its not returning in detection method
,while running in android 6.0.
please help me to solve this issue.
Detailed log -
https://s3.amazonaws.com/uploads.hipchat.com/140263/1400779/kS4OjMvPGa5d1zy/logcat.txt
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