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问题描述
I have the following directory strucure:
project root/
negatives/
the negatives files
ngest/
00palmo/
1510 positives files
01pugno/
1431 positive files
02indice/
1073 positive files
03v/
1462 positive files
I want to train a cascade classifier with the following script
#!/bin/bash
touch negatives/ls.txt
ls -1 negatives|sed -e "s/ *$//">negatives/ls.txt #list of negatives images
for i in ~/workspace/sm/ngest/*;do
cd $i
find . -name '*' -exec identify -format '%i 1 0 0 %w %h' \{\} \; >ls.txt #list of all images in question
opencv_createsamples -vec $(pwd)/coll.vec -info ls.txt -bg ../../negatives/ls.txt -w 24 -h 24 -num 1550
mkdir out #the directory where we put the classifiers
opencv_traincascade -data out -bg ../../negatives/ls.txt -vec coll.vec -featureType LBP \
-w 24 -h 24 -numPos 1300 -minHitRate 0.99 -precalcValBufSize 4096 -precalcIdxBufSize 4096
echo #line to separate the various iterations
done
However ,while I got a full classifier in 00palmo/out/cascade.xml and in 03v/out/cascade.xml,in 01pugno/out teach up to the 10thstage before stopping(the other got up to the 12th before completing with success) and 02indice/out is an empty directory after the script complete.
Both the command 01pugno and 02indice terminate with the following error message ,after respectively 10 and 0 stages:
POS current sOpenCV Error: Bad argument (Can not get new positive sample. The most possible reason is insufficient count of samples in given vec-file.
) in get, file /build/buildd/opencv-2.4.8+dfsg1/apps/traincascade/imagestorage.cpp, line 162
terminate called after throwing an instance of 'cv::Exception'
what(): /build/buildd/opencv-2.4.8+dfsg1/apps/traincascade/imagestorage.cpp:162: error: (-5) Can not get new positive sample. The most possible reason is insufficient
count of samples in given vec-file.
in function get
Here the link to the output of the script: https://www.dropbox.com/s/jz4nidgw1zwm8f6/out.txt?dl=0 .
And here the link to an archive with the files I used for creating the classifiers:
https://www.dropbox.com/s/63r71jlqpdxsbwf/files.zip?dl=0 .
Where did I got it wrong?
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