opencv_createsamples on Windows continues to run without any output
I am running opencv_createsamples on Windows machine. I do not get any error but the utility continues to run without giving any output. I have positive marked up images which I am passing to the command in a form of a file marker.dat
Following is the command I am using opencv_createsamples -info "C:\Python27\marker.dat" -vec "C:\Python27\op.vec" -show -w 24 -h 24
The contents of the market.dat are as follows:
lines1.jpg 1 56 111 621 55
lines2.jpg 1 2184 186 603 79
I do not get any error. The program says "Create training samples from images collections" but nothing happens after that. It continues to remain in the same state forever.
Am I missing anything here? I tried to do lot of search on google but could not find any resolution. Your help will be appreciated.