User:Inductiveload/Scripts/Universal batch image to DJVU converter/Windows
This script will take either a directory of images or a list of image files and collate them in order into a DJVU file. This script needs Imagemagick, and you have to specify the Imagemagick and DjvuLibre paths inside the script to match your system. The script can handle JPG, PNG, TIFF, GIF, and any other file that Imagemagick can convert to PPM.
- To convert a directory of images in alphabetical order (all filetypes)
python djvuify.py -i "C:\dir" -o "C:\dir\out.djvu"
- To convert a directory of images as bitonal
python djvuify.py -i "C:\dir" -b -o "C:\dir\out.djvu"
- To convert a directory of images in alphabetical order (jpgs only)
python djvuify.py -i "C:\dir" -e .jpg -o "C:\dir\out.djvu"
- To convert a list of images in a text file
python djvuify.py -i "C:\dir\list.txt" -l -o "C:\dir\out.djvu"
- To convert a directory of images numbered sequentially by Windows ("a (0).jpg", "a (1).jpg"..."a (10).jpg"...)
python djvuify.py -i "C:\dir" -r -o "C:\dir\out.djvu"
- Debugging messages
Add the "-d" flag
- Set DJVU quality for anthing but TIFF and bitonal, use "-q" parameter (you can go up to 48, the highest quality)
python djvuify.py -i "C:\dir" -q 48 -o "C:\dir\out.djvu"
Source code edit
#!/usr/bin/env python
import os, glob, subprocess, re, optparse
#CONVERT A DIRECTORY OF IMAGES TO A DJVU FILE
def main():
parser = optparse.OptionParser(usage='Usage: %prog -i <source directory> <options> -o <output file>')
parser.add_option('-i', dest='dir', action='store',\
help='the directory of images or list of files to collate to DJVU (required)')
parser.add_option('-l', dest='list', action='store_true', default=False,\
help='the -i parameter refers to a list of files to collate in order' )
parser.add_option('-r', dest='rename', action='store_true', default=False,\
help='rename files that were automatically named by Windows to a format that will sort well' )
parser.add_option('-q', dest='quality', action='store', default='48',\
help='quality parameter for the c44 function (decibel), defualt=48' )
parser.add_option('-d', dest='debug', action='store_true', default=False,\
help='toggle debugging information' )
parser.add_option('-b', dest='bitonal', action='store_true', default=False,\
help='bitonal flag' )
parser.add_option('-e', dest='ext', action='store', default='.*',\
help='image file extension (optional, default collates all types together)' )
parser.add_option('-o', dest='out', action='store',\
help='the output file for the DJVU (required). This will be overwritten if it exists' )
(opts, args) = parser.parse_args()
# check mandatory options
if opts.dir is None:
print("The input directory/list '-i' must be given\n")
parser.print_help()
exit(-1)
if opts.out is None :
print("The output file (-o) must be given\n")
parser.print_help()
exit(-1)
if opts.rename and opts.list :
print("The options '-r' and '-l' cannot both be given\n")
parser.print_help()
exit(-1)
if opts.ext != '.*' and opts.list :
print("The options '-r' and '-l' cannot both be given\n")
parser.print_help()
exit(-1)
Collate(opts)
class Collate():
def __init__(self, opts):
self.opts = opts
if self.opts.rename:
self.renumber()
#create temporary DJVU file
self.opts.tempDjvu = os.path.join(os.path.dirname(self.opts.dir), 'IMG-DJVU-CONVERTER-TEMP.djvu')
if self.opts.bitonal:
self.opts.tempPpm = os.path.join(os.path.dirname(self.opts.dir), 'IMG-DJVU-CONVERTER-TEMP.pbm')
else:
self.opts.tempPpm = os.path.join(os.path.dirname(self.opts.dir), 'IMG-DJVU-CONVERTER-TEMP.ppm')
#define djvu and imagemagick directories
self.opts.djvuDir=r"c:\program files\djvuzone\djvulibre" #directory of djvu libre executables
self.opts.imckDir = r"C:\program files\imagemagick" #directory of image magick executables
#remove output file if it exists
self.clearOutFile()
#process each file
if not self.opts.list:
for infile in os.listdir(self.opts.dir): #for every file in the directory
root, ext = os.path.splitext(infile)
if ext == self.opts.ext or self.opts.ext == '.*':
self.processFile(os.path.join(self.opts.dir, infile))
else:
listfile = open(self.opts.dir, 'r')
for infile in listfile:
self.processFile(infile.strip() )
#Delete the temporary files
self.cleanUp()
if self.opts.debug:
print('\nAll files converted and collated successfully')
def renumber( self ):
if self.opts.debug:
print('\tRenaming files to a good sorting format.')
#rename files to have leading zero numbers so they sort properly
for infile in os.listdir(self.opts.dir): #for every file in the directory
root, ext = os.path.splitext(infile)
if ext == self.opts.ext or self.opts.ext == '.*':
m = re.search('(.*)\((\d+)\)', infile)
if m:
index = int(m.group(2)) #this is the numeric index
index = '%04d' % index #pad with zeros
newname = m.group(1) + index + ext#append to name
print(newname)
os.rename(os.path.join(self.opts.dir, infile), os.path.join(self.opts.dir, newname))
return
def clearOutFile( self ):
if os.path.exists(self.opts.out):
if self.opts.debug:
print('\tOutput file exists. Deleting.')
os.remove(self.opts.out)
return
def cleanUp( self ):
if os.path.exists(self.opts.tempDjvu):
if self.opts.debug:
print('\tDeleting temporary DJVU file.')
os.remove(self.opts.tempDjvu)
return
def processFile(self, infile):
if self.opts.debug:
print('\tProcessing: ' + infile)
root, ext = os.path.splitext( infile )
if not self.opts.bitonal and ext =='.jpg':
#convert jpg to a temp djvu file
cmd = [os.path.join(self.opts.djvuDir, 'c44.exe'), '-decibel', self.opts.quality, infile, self.opts.tempDjvu]
#print(cmd)
subprocess.call(cmd)
elif self.opts.bitonal and (ext == '.tiff' or ext=='.tif'):
#convert jpg to a temp djvu file
cmd = [os.path.join(self.opts.djvuDir, 'cjb2.exe') ,infile, self.opts.tempDjvu]
#print(cmd)
subprocess.call(cmd)
else :#ext == '.gif' or ext=='.png': #image needs converting
cmd = [os.path.join(self.opts.imckDir, 'convert.exe'), infile, self.opts.tempPpm]
print(cmd)
subprocess.call(cmd)
if self.opts.bitonal:
cmd = [os.path.join(self.opts.djvuDir, 'cjb2.exe'), self.opts.tempPpm, self.opts.tempDjvu]
else:
cmd = [os.path.join(self.opts.djvuDir, 'c44.exe'), '-decibel', self.opts.quality, self.opts.tempPpm, self.opts.tempDjvu]
#print(cmd)
subprocess.call(cmd)
os.remove(self.opts.tempPpm)
if os.path.exists(self.opts.out):
#Add the djvu file to the collated file
cmd = [os.path.join(self.opts.djvuDir, 'djvm.exe'),'-i', self.opts.out,self.opts.tempDjvu]
else:
# Create the collated file
cmd = [os.path.join(self.opts.djvuDir, 'djvm.exe'), '-c',self.opts.out,self.opts.tempDjvu]
subprocess.call(cmd)
if __name__ == "__main__":
try:
main()
finally:
None
#wikipedia.stopme()