I have been trying to train my own haar cascade referring to the following site https://pythonprogramming.net/haar-cascade-object-detection-python-opencv-tutorial/ since so many days but unable to get my object detected. Following are the different scenarios I tried

1. I tried to single image of my watch
2. stopped my watch (to keep in same position)
3. tried different angles of the same watch (had 8images) - I used opencv_createsamples 8 different times on the same set of 1000 negative images to create 8000 positive images opencv_createsamples -img pos/1.jpg -bg bg.txt -info info/info.lst -pngoutput info -maxxangle 0.5 -maxyangle 0.5 -maxzangle 0.5 -num 1000 opencv_createsamples -img pos/2.jpg -bg bg.txt -info info/info.lst -pngoutput info -maxxangle 0.5 -maxyangle 0.5 -maxzangle 0.5 -num 1000 ...... opencv_createsamples -info info/info.lst -num 8000 -w 20 -h 20 -vec positives.vec opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 7000 -numNeg 1000 -numStages 10 -w 20 -h 20

4.then tried a square box. 5. Tried positive images twice the number of negative images opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 1900 -numNeg 850 -numStages 10 -w 20 -h 20 6. Tried negative images twice the number of positive images opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 1000 -numNeg 2000 -numStages 10 -w 20 -h 20

My aim was to train 2-3 different objects separately and then identify them. Please suggest your opinion. for file_type in ['neg']: for img in os.listdir(file_type): if file_type == 'pos': line = file_type+'/'+img+' 1 0 0 50 50\n' with open('info.dat','a') as f: f.write(line) elif file_type == 'neg': line = file_type+'/'+img+'\n' with open('bg.txt','a') as f: f.write(line)

opencv_createsamples -img pos/1.jpg -bg bg.txt -info info/info.lst -pngoutput info -maxxangle 0.5 -maxyangle 0.5 -maxzangle 0.5 -num 1000 opencv_createsamples -info info/info.lst -num 1000 -w 20 -h 20 -vec positives.vec opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 900 -numNeg 450 -numStages 10 -w 20 -h 20

Most of the times, my cascade is getting trained in just few minutes instead of few hours.

===== TRAINING 7-stage ===== <begin pos="" count="" :="" consumed="" 900="" :="" 913="" neg="" count="" :="" acceptanceratio="" 1500="" :="" 0.00139174="" precalculation="" time:="" 10.819="" +----+---------+---------+="" |="" n="" |="" hr="" |="" fa="" |="" +----+---------+---------+="" |="" 1|="" 1|="" 1|="" +----+---------+---------+="" |="" 2|="" 0.996667|="" 0.631333|="" +----+---------+---------+="" |="" 3|="" 0.996667|="" 0.599333|="" +----+---------+---------+="" |="" 4|="" 0.995556|="" 0.359333|="" +----+---------+---------+<="" p="">

HaarCascade #CascadeClassifier #Python #OpenCV #ImageProcessing #ImageRecognition #Computer Vision #ImageProcessing

I have been trying to train my own haar cascade referring to the following site https://pythonprogramming.net/haar-cascade-object-detection-python-opencv-tutorial/ since so many days but unable to get my object detected. Following are the different scenarios I tried

1. I tried to single image of my watch
2. stopped my watch (to keep in same position)
3. tried different angles of the same watch (had 8images) - I used opencv_createsamples 8 different times on the same set of 1000 negative images to create 8000 positive images opencv_createsamples -img pos/1.jpg -bg bg.txt -info info/info.lst -pngoutput info -maxxangle 0.5 -maxyangle 0.5 -maxzangle 0.5 -num 1000 opencv_createsamples -img pos/2.jpg -bg bg.txt -info info/info.lst -pngoutput info -maxxangle 0.5 -maxyangle 0.5 -maxzangle 0.5 -num 1000 ...... opencv_createsamples -info info/info.lst -num 8000 -w 20 -h 20 -vec positives.vec opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 7000 -numNeg 1000 -numStages 10 -w 20 -h 20

4.then tried a square box. 5. Tried positive images twice the number of negative images opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 1900 -numNeg 850 -numStages 10 -w 20 -h 20 6. Tried negative images twice the number of positive images opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 1000 -numNeg 2000 -numStages 10 -w 20 -h 20

My aim was to train 2-3 different objects separately and then identify them. Please suggest your opinion. for file_type in ['neg']: ['neg']:

for img in os.listdir(file_type):
     if file_type == 'pos':
         line = file_type+'/'+img+' 1 0 0 50 50\n'
         with open('info.dat','a') as f:
             f.write(line)
     elif file_type == 'neg':
         line = file_type+'/'+img+'\n'
         with open('bg.txt','a') as f:
                f.write(line)
f.write(line)

opencv_createsamples -img pos/1.jpg -bg bg.txt -info info/info.lst -pngoutput info -maxxangle 0.5 -maxyangle 0.5 -maxzangle 0.5 -num 1000 opencv_createsamples -info info/info.lst -num 1000 -w 20 -h 20 -vec positives.vec opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 900 -numNeg 450 -numStages 10 -w 20 -h 20

Most of the times, my cascade is getting trained in just few minutes instead of few hours.

===== TRAINING 7-stage ===== <begin pos="" count="" :="" consumed="" 900="" :="" 913="" neg="" count="" :="" acceptanceratio="" 1500="" :="" 0.00139174="" precalculation="" time:="" 10.819="" +----+---------+---------+="" |="" n="" |="" hr="" |="" fa="" |="" +----+---------+---------+="" |="" 1|="" 1|="" 1|="" +----+---------+---------+="" |="" 2|="" 0.996667|="" 0.631333|="" +----+---------+---------+="" |="" 3|="" 0.996667|="" 0.599333|="" +----+---------+---------+="" |="" 4|="" 0.995556|="" 0.359333|="" +----+---------+---------+<="" p="">

HaarCascade #CascadeClassifier #Python #OpenCV #ImageProcessing #ImageRecognition #Computer Vision #ImageProcessing

I have been trying to train my own haar cascade referring to the following site https://pythonprogramming.net/haar-cascade-object-detection-python-opencv-tutorial/ since so many days but unable to get my object detected. Following are the different scenarios I tried

1. I tried to single image of my watch
2. stopped my watch (to keep in same position)

3. tried different angles of the same watch (had 8images) - I used opencv_createsamples 8 different times on the same set of 1000 negative images to create 8000 positive images images

    opencv_createsamples -img pos/1.jpg -bg bg.txt -info info/info.lst -pngoutput info -maxxangle 0.5 -maxyangle 0.5 -maxzangle 0.5 -num 1000
    opencv_createsamples -img pos/2.jpg -bg bg.txt -info info/info.lst -pngoutput info -maxxangle 0.5 -maxyangle 0.5 -maxzangle 0.5 -num 1000
   ......
   1000
   

   ......

    opencv_createsamples -info info/info.lst -num 8000 -w 20 -h 20 -vec positives.vec
    opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 7000 -numNeg 1000 -numStages 10 -w 20 -h 2020
   

4.then tried a square box. 5. Tried positive images twice the number of negative images images

 opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 1900 -numNeg 850 -numStages 10 -w 20 -h 20

6. Tried negative images twice the number of positive images images

 opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 1000 -numNeg 2000 -numStages 10 -w 20 -h 20
20

My aim was to train 2-3 different objects separately and then identify them. Please suggest your opinion. for file_type in ['neg']:

for img in os.listdir(file_type):
    if file_type == 'pos':
        line = file_type+'/'+img+' 1 0 0 50 50\n'
        with open('info.dat','a') as f:
            f.write(line)
    elif file_type == 'neg':
        line = file_type+'/'+img+'\n'
        with open('bg.txt','a') as f:
            f.write(line)

opencv_createsamples -img pos/1.jpg -bg bg.txt -info info/info.lst -pngoutput info -maxxangle 0.5 -maxyangle 0.5 -maxzangle 0.5 -num 1000 1000

opencv_createsamples -info info/info.lst -num 1000 -w 20 -h 20 -vec positives.vec positives.vec

opencv_traincascade -data data -vec positives.vec -bg bg.txt -numPos 900 -numNeg 450 -numStages 10 -w 20 -h 20

Most of the times, my cascade is getting trained in just few minutes instead of few hours.

 ===== TRAINING 7-stage =====
<begin pos="" count="" :="" consumed="" 900="" :="" 913="" neg="" count="" :="" acceptanceratio="" 1500="" :="" 0.00139174="" precalculation="" time:="" 10.819="" +----+---------+---------+="" |="" n="" |="" hr="" |="" fa="" |="" +----+---------+---------+="" |="" 1|="" 1|="" 1|="" +----+---------+---------+="" |="" 2|="" 0.996667|="" 0.631333|="" +----+---------+---------+="" |="" 3|="" 0.996667|="" 0.599333|="" +----+---------+---------+="" |="" 4|="" 0.995556|="" 0.359333|="" +----+---------+---------+<="" p="">
 <BEGIN
POS count : consumed 900 : 913
NEG count : acceptanceRatio 1500 : 0.00139174
Precalculation time: 10.819
+----+---------+---------+
| N | HR | FA |
+----+---------+---------+
| 1| 1| 1|
+----+---------+---------+
| 2| 0.996667| 0.631333|
+----+---------+---------+
| 3| 0.996667| 0.599333|
+----+---------+---------+
| 4| 0.995556| 0.359333|
+----+---------+---------+