OpenCV_CreateSamples and Training can't read negatives.txt
OS: WIN 64 (German verison) BUILD In 32
around 3229 positives, 3000 negatives, all pos. are 24x24, all neg. are of different, larger resolutions (640x480 and bigger)
It seems it can't open the negatives.txt i created.
positives.txt looks like:
./Pos/1006.jpg 1 0 0 24 24
./Pos/1007.jpg 1 0 0 24 24
negatives.txt (=neg.txt) looks like:
./negatives/3212.jpg
./negatives/3213.jpg
./negatives/3214.jpg
also tried it with full path and without the "./" (no difference and it works with the positives). Converting negatives.txt to Ansi or UTF-8 without BOM hasn't helped either.
If i understood it correctly, he should place images randomly into one of the background images i have in my negatives.txt.
./opencv_createsamples -info positives.txt -bg neg.txt -num 1000 -maxidev 100 -vec training.vec -show
only shows positives
./opencv_createsamples -img ./pos/1015.jpg -bg neg.txt -num 1000 -maxidev 100 -vec test.vec -show
shows nothing and
./opencv_createsamples -vec test.vec -show
crashes with
OpenCV Error: Assertion failed (elements_read1 == 1 && elements_read2 == 1 && elements_read3 == 1 && elements_read4 == 1) in cvShowVecSamples, file E:\opencv_src\apps\createsamples\utility.cpp, line 1619
Also i tried to build a training.vec with the negatives just to see if it will show something there. Trying to have a look into it "-show" does not return anything. Creating samples with only positives works flawless but the training will crash with different errors and is way too fast.
/opencv_traincascade -data result -vec training.vec -bg neg.txt -numPos 900 -numNeg 2900 -numStages 4 -precalcValBufSize 2048 -precalcIdxBufSize 2048 -numThreads 3 -featureType LBP -w 24 -h 24 -minHitRate 0.99 -maxFalseAlarmRate 0.5
Examples
POS count : consumed 900 : 900
NEG count : acceptanceRatio 2900 : 1
Precalculation time: 1.077
+----+---------+---------+
| N | HR | FA |
+----+---------+---------+
| 1| 1| 1|
+----+---------+---------+
| 2| 0.995556| 0.107586|
+----+---------+---------+
END>
Training until now has taken 0 days 0 hours 0 minutes 1 seconds.
===== TRAINING 1-stage =====
<BEGIN
POS count : consumed 900 : 904
NEG count : acceptanceRatio 2900 : 0.121905
Precalculation time: 1.084
+----+---------+---------+
| N | HR | FA |
+----+---------+---------+
| 1| 1| 1|
+----+---------+---------+
| 2| 1| 1|
+----+---------+---------+
| 3| 0.994444| 0.113103|
+----+---------+---------+
END>
Training until now has taken 0 days 0 hours 0 minutes 3 seconds.
POS count : consumed 900 : 910
Train dataset for temp stage can not be filled. Branch training terminated.
When reducing minHitRate to 0.9:
POS count : consumed 300 : 320
NEG count : acceptanceRatio 9 : 0.05625
Required leaf false alarm rate achieved. Branch training terminated.