Hi, I have a python script that is processing 6,240 14-bit TIFs, each one has to be made into 32 new images (8-bit exposure ranges), which are later enfused with Enfuse (also via command line).
Unfortunately, ImageMagick "convert" command crashes every 500-1000 images or so, it just freezes the entire python script. I have to control-C to kill the current convert command, then the script continues to run until the next error. I am not running out of system memory. However, occasionally I get a convert malloc error when it freezes, but not always: convert(64216,0x7fff70cdbca0) malloc: *** error for object 0x100b00488: incorrect checksum for freed object - object was probably modified after being freed. I can re-run the script any number of times to have it create only the ones it failed to make the first time. But that is troublesome because I have to check on it and babysit it every couple hours hit control-C. What is the fix or a more permanent workaround? Code details are below. It will always freeze right after the "print" statement, activity monitor shows that "convert" command is continuing to run at 80% CPU, but it will stay like that for hours until I control-C it to kill that individual convert command. The image is never created. The next image is created just fine. And then the script continues to run. many thanks, jordan System details: Version: ImageMagick 6.7.0-0 2011-06-07 Q16 http://www.imagemagick.org Copyright: Copyright (C) 1999-2011 ImageMagick Studio LLC Features: OpenMP OpenCL OS X 10.6.7 Shell processing, from python script. rangeBottomTemp = 0 rangeTopTemp = 1 for i in range(32): if (rangeBottomTemp < rangeTopTemp): rangeTopTemp = rangeBottomTemp + binningRange print "You have set the linear-stretch range for image \"" + str(i) + "\" to be " + str(rangeBottomTemp) + " and " + str(rangeTopTemp) + ", respectively" os.system("convert -quiet \"" + file + "\" -level " + str(rangeBottomTemp) + "," + str(rangeTopTemp) + " -depth 8 -colorspace Gray " + newDir + "\"/" + file[:-4] + "/" + file[:-4] + "_UniformBrightness_"+ str(i) + ".tif\" " ) rangeBottomTemp = rangeTopTemp - binningRange / 2 _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
