160 lines
4.9 KiB
Python
Executable File
160 lines
4.9 KiB
Python
Executable File
#!/usr/bin/env python
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# see: http://www.amk.ca/python/code/
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import sys, os, getopt
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try:
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from PIL import Image
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except ImportError:
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print >>sys.stderr, ("Unable to import PIL.Image; "
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"is the Python Imaging Library installed?"
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"\(e.g.: apt-get install python-image\)")
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sys.exit(0)
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__version__ = '1.01'
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__doc__ = """%s [option] file1 file2
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Options:
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--help Display this usage message
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--html Output HTML to stdout
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--resize x y Resize specified images to x,y
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--resize-ratio x Resize specified images with correct aspect ratio
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--rotate x Rotate the image counter clockwise for x degrees
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--size Display the image sizes
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--thumbnail x y Make thumbnails of specified images, ignoring existing
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thumbnails that happen to be listed among the files.
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If a filename is of the form *_thumb.*, it's assumed to be a thumbnail.
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""" % sys.argv[0]
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def is_thumbnail (filename):
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"Returns true if the filename is for a thumbnail"
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root, ext = os.path.splitext(filename)
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return root.endswith('_thumb')
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def thumbnail_name (filename):
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"""Return the thumbnail form of a filename,
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converting foo.jpg to foo_thumb.jpg.
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"""
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assert not is_thumbnail(filename)
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root, ext = os.path.splitext(filename)
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return root + '_thumb' + ext
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def output_html (args):
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for filename in args:
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if is_thumbnail(filename): continue
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thumbnail = thumbnail_name(filename)
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if not os.path.exists(thumbnail):
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print >>sys.stderr, ("%s: thumbnail %s doesn't exist" %
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(sys.argv[0], thumbnail) )
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im = Image.open(thumbnail)
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width, height = im.size
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print ('<p><a href="%s"><img src="%s" width="%i" height="%i" '
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'alt="XXX" align="XXX"></a>'
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'\n\nXXX\n'
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'<br clear=all><hr>\n\n'
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% (filename, thumbnail, width, height) )
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def make_thumbnails (args):
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x, y = int(args[0]), int(args[1])
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args = args[2:] ; args.sort()
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for filename in args:
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if is_thumbnail(filename): continue
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thumbnail = thumbnail_name(filename)
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print >>sys.stderr, filename
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im = Image.open(filename)
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im.thumbnail((x,y))
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im.save(thumbnail)
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def rotate_images (args):
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x = int(args[0])
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args = args[1:] ; args.sort()
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for filename in args:
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im = Image.open(filename)
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im2 = im.rotate(x)
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im2.save(filename)
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print "rotated %s %i degrees" % (filename, x)
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def resize_images (args):
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x, y = int(args[0]), int(args[1])
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args = args[2:] ; args.sort()
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for filename in args:
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im = Image.open(filename)
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w,h = im.size
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im2 = im.resize((x,y))
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print >>sys.stderr, ('%s: was %i,%i; resizing to %i,%i'
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% (filename, w,h, x,y) )
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im2.save(filename)
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def resize_images_aspectratio (args):
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x = int(args[0])
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args = args[1:] ; args.sort()
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for filename in args:
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im = Image.open(filename)
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w,h = im.size
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y = x*h/w
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im2 = im.resize((x,y))
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print >>sys.stderr, ('%s: was %i,%i; resizing to %i,%i'
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% (filename, w,h, x,y) )
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im2.save(filename)
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def main ():
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opts, args = getopt.getopt(sys.argv[1:],
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'h',
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['help',
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'html',
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'resize',
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'resize-ratio',
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'size',
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'thumbnail',
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'rotate'])
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# Remove the unused option arguments
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opts = [opt for opt,arg in opts]
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# Print usage message if requested
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if '-h' in opts or '--help' in opts:
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print >>sys.stderr, __doc__
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sys.exit(0)
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# Ensure that exactly one option is supplied
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if len(opts) == 0:
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print >> sys.stderr, ("%s: must specify one of --size, --help"
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"\n --html, --resize, --resize-ratio, --thumbnail --rotate" % sys.argv[0] )
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sys.exit(0)
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elif len(opts) > 1:
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print >> sys.stderr, ("%s: cannot specify multiple options" %
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sys.argv[0] )
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sys.exit(0)
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# Perform each of the possible actions
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opt = opts[0]
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if opt == '--html':
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output_html(args)
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elif opt == '--resize':
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resize_images(args)
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elif opt == '--resize-ratio':
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resize_images_aspectratio(args)
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elif opt == '--rotate':
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rotate_images(args)
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elif opt == '--size':
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for filename in args:
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image = Image.open(filename)
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x, y = image.size
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print filename, ':', x,y
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elif opt == '--thumbnail':
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make_thumbnails(args)
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else:
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print >>sys.stderr, ("%s: unknown option" % sys.argv[0])
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if __name__ == '__main__':
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main()
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