mirror of
https://github.com/oDinZu/callirhoe.git
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25c380c28d
git-svn-id: https://callirhoe.googlecode.com/svn/trunk@133 81c8bb96-aa45-f2e2-0eef-c4fa4a15c6df
229 lines
12 KiB
Python
Executable File
229 lines
12 KiB
Python
Executable File
#!/usr/bin/env python2.7
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# -*- coding: utf-8 -*-
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# callirhoe - high quality calendar rendering
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# Copyright (C) 2012-2014 George M. Tzoumas
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see http://www.gnu.org/licenses/
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# *****************************************************************
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# #
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""" high quality photo calendar composition using Imagemagick """
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# #
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# *****************************************************************
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import sys
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import subprocess
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import os.path
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from callirhoe import extract_parser_args
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import optparse
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def run_callirhoe(style, w, h, args, outfile):
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subprocess.call(['callirhoe', '-s', style, '--no-footer', '--border', '0', '--paper=-%d:-%d' % (w,h)] + args + [outfile])
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# TODO: parse dimensions
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class PNMImage(object):
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def __init__(self, strlist):
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self.data = [];
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state = 0;
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for i in range(len(strlist)):
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# skip comments
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if strlist[i].startswith('#'): continue
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# parse header
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if state == 0:
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if not strlist[i].startswith('P2'):
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raise RuntimeError('invalid PNM image format: %s' % strlist[i])
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state += 1
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# parse size
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elif state == 1:
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w,h = map(int,strlist[i].split())
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if w != h:
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raise RuntimeError('non-square PNM image')
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self.size = (w,h)
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state += 1
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# parse max value
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elif state == 2:
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self.maxval = int(strlist[i])
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state += 1
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# bitmap
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else:
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data = ' '.join(filter(lambda s: not s.startswith('#'), strlist[i:]))
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intlist = map(int,data.split())
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self.data = [intlist[x:x+w] for x in range(0, len(intlist), w)]
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break
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self.xsum = [map(lambda x: sum(self.data[y][0:x]), range(w+1)) for y in range(0,h)]
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def block_avg(self, x, y, sz):
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return float(sum([(self.xsum[y][x+sz] - self.xsum[y][x]) for y in range(y,y+sz)]))/(sz*sz)
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def fit_rect(self, size_range = (0.333, 0.8), entropy_range = (9,16), improvement = 0.15):
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w,h = self.size
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best = (self.maxval,1,0,0) # avg, sz, x, y
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for sz in range(int(w*size_range[1]+0.5),int(w*size_range[0]+0.5)-1,-1):
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for y in range(0,h-sz+1):
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for x in range(0,w-sz+1):
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cur = (self.block_avg(x,y,sz), float(sz)/w, x, y)
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if cur[0] < best[0]:
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# same size, always minimize
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if cur[1] == best[1]:
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best = cur
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# print best
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elif cur[0] > entropy_range[1] or 1-cur[0]/best[0] > improvement:
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best = cur
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# print best, "+"
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if best[0] <= entropy_range[0]:
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break
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return best
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_version = "0.1.0"
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def get_parser():
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"""get the argument parser object"""
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parser = optparse.OptionParser(usage="usage: %prog IMAGE [options] [callirhoe-options] [--post-magick IMAGEMAGICK-options]",
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description="High quality photo calendar composition with automatic minimal-entropy placement. "
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"If IMAGE is a single file, then a calendar of the current month is overlayed. If IMAGE is a directory, "
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"then every month is generated starting from January of the current year (unless otherwise specified), "
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"advancing one month for every photo in the IMAGE directory. "
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"Photos will be reused in a round-robin fashion if more calendar "
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"months are requested.", version="calmagick " + _version)
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parser.add_option("--quantum", type="int", default=60,
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help="choose quantization level for entropy computation [%default]")
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parser.add_option("--min-size", type="float", default=0.333,
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help="set minimum calendar/photo size ratio [%default]")
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parser.add_option("--max-size", type="float", default=0.8,
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help="set maximum calendar/photo size ratio [%default]")
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parser.add_option("--low-entropy", type="float", default=9,
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help="set maximum entropy threshold (0-255) for early termination (0=global minimum) [%default]")
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parser.add_option("--high-entropy", type="float", default=16,
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help="set minimum entropy threshold (0-255) up to which smaller sizes are always tried [%default]")
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parser.add_option("--improvement", type="float", default=0.15,
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help="set minimum relative entropy improvement in order to try a smaller size [%default]")
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parser.add_option("--negative", type="float", default=100,
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help="average luminosity (0-255) threshold of the overlaid area, below which a negative "
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"overlay is chosen [%default]")
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parser.add_option("--test", action="store_true", default=False,
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help="generate image showing minimum entropy area only, without calendar")
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parser.add_option("--test-rect", action="store_true", default=False,
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help="print minimum entropy area in STDOUT as X Y W H, without generating any files")
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parser.add_option("-v", "--verbose", action="store_true", default=False,
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help="print progress messages")
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im = optparse.OptionGroup(parser, "ImageMagick Options", "These options determine how ImageMagick is used.")
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im.add_option("--brightness", type="int", default=10,
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help="increase/decrease brightness by this (percent) value; "
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"brightness is decreased on negative overlays [%default]")
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im.add_option("--saturation", type="int", default=100,
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help="set saturation of the overlaid area "
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"to this value (percent) [%default]")
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im.add_option("--edge", type="float", default=2,
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help="radius argument for the edge detection algorithm (entropy computation) [%default]")
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im.add_option("--pre-magick", action="store_true", default=False,
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help="pass all subsequent arguments to ImageMagick, before entropy computation")
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im.add_option("--in-magick", action="store_true", default=False,
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help="pass all subsequent arguments to ImageMagick, to be applied on the minimal-entropy area")
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im.add_option("--post-magick", action="store_true", default=False,
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help="pass all subsequent arguments to ImageMagick, to be applied on the final output")
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parser.add_option_group(im)
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return parser
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if __name__ == '__main__':
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parser = get_parser()
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magickargs = []
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try:
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m = sys.argv.index('--post-magick')
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magickargs = sys.argv[m+1:]
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del sys.argv[m:]
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except:
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pass
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sys.argv,argv2 = extract_parser_args(sys.argv,parser,2)
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(options,args) = parser.parse_args()
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if len(args) < 1:
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parser.print_help()
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# print "Usage: %s BACKGROUNDIMAGE [callirhoe args ...] " % (sys.argv[0])
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sys.exit(0)
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img = args[0]
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base,ext = os.path.splitext(img)
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if options.verbose: print "Extracting image info..."
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#info = subprocess.check_output(['convert', img, '-colorspace', 'gray', '-format', '%w %h %[fx:mean]', 'info:']).split()
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info = subprocess.check_output(['convert', img, '-format', '%w %h', 'info:']).split()
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w,h = map(int, info)
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resize = '%dx%d!' % (options.quantum, options.quantum)
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if options.verbose:
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print "%s %dx%d %dmp" % (img, w, h, int(w*h/1000000.0+0.5))
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print "Calculating image entropy..."
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# pnm_entropy = PNMImage(subprocess.check_output(['convert', img, '-resize', '2500>', '-colorspace', 'HSL', '-channel', 'B', '-separate',
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# '-colorspace', 'Gray', '-edge', str(options.edge), '-scale', resize, '-compress', 'None', 'pnm:-']).splitlines())
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# pnm_entropy = PNMImage(subprocess.check_output(['convert', img, '-scale', '2500>', '-colorspace', 'Gray',
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# '-edge', str(options.edge), '-scale', resize, '-compress', 'None', 'pnm:-']).splitlines())
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pnm_entropy = PNMImage(subprocess.check_output(['convert', img, '-scale', '512>', '(', '+clone',
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'-blur', '0x%d' % options.edge, ')', '-compose', 'minus', '+swap', '-composite',
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'-colorspace', 'Gray', '-scale', resize, '-normalize', '-compress', 'None', 'pnm:-']).splitlines())
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if options.verbose: print "Fitting... ",
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best = pnm_entropy.fit_rect((options.min_size,options.max_size),
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(options.low_entropy,options.high_entropy), options.improvement)
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if options.verbose: print best
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nw, nh = int(w*best[1]), int(h*best[1])
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dx = int(float(w*best[2])/pnm_entropy.size[0])
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dy = int(float(h*best[3])/pnm_entropy.size[1])
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#print nw, nh, dx, dy
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if options.test:
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subprocess.call(['convert', img, '-region', '%dx%d+%d+%d' % (nw,nh,dx,dy),
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'-negate', base+'-0'+ext])
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# subprocess.call(['convert', img, '-region', '%dx%d+%d+%d' % (nw,nh,dx,dy),
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# '-border', '2', '-bordercolor', 'black', '-border', '1', base+'-0'+ext])
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if options.test_rect:
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print dx, dy, nw, nh
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if options.test or options.test_rect:
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sys.exit(0)
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# pnm_lum = PNMImage(subprocess.check_output(['convert', img, '-colorspace', 'HSL', '-channel', 'B', '-separate',
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# '-colorspace', 'Gray', '-scale', resize, '-compress', 'None', 'pnm:-']).splitlines())
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pnm_lum = PNMImage(subprocess.check_output(['convert', img, '-colorspace', 'Gray',
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'-scale', resize, '-compress', 'None', 'pnm:-']).splitlines())
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luma = pnm_lum.block_avg(best[2], best[3], int(best[1]*pnm_lum.size[0] + 0.5))
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#print 'luma =', luma
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negative = luma < options.negative
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if options.verbose: print "Generating calendar image (transparent)..."
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run_callirhoe('mono_transparent', nw, nh, argv2, '_transparent_cal.png');
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if options.verbose: print "Composing overlay...%s" % (' (negative)' if negative else '')
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overlay = ['(', '-negate', '_transparent_cal.png', ')'] if negative else ['_transparent_cal.png']
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subprocess.call(['convert', img, '-region', '%dx%d+%d+%d' % (nw,nh,dx,dy)] +
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([] if options.brightness == 0 else ['-brightness-contrast', '%d' % (-options.brightness if negative else options.brightness)]) +
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([] if options.saturation == 100 else ['-modulate', '100,%d' % options.saturation]) +
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['-compose', 'over'] + overlay + ['-geometry', '+%d+%d' % (dx,dy), '-composite'] +
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magickargs + [base+'-0'+ext])
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# subprocess.call(['composite', '-gravity', 'center', '(', '-negate', '_transparent_cal.png', ')', img, base+'-1'+ext])
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# print "Composing overlay (blend)..."
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# subprocess.call(['composite', '-blend', '50', '-gravity', 'center', '_transparent.png', img, 'bar2.jpg'])
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# print "Composing overlay (negative blend)..."
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# subprocess.call(['composite', '-blend', '50', '-gravity', 'center', '(', '-negate', '_transparent.png', ')', img, 'bar3.jpg'])
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#convert p6.jpg -colorspace HSL -channel B -separate -resize 12x12\! -compress None pnm:-
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#convert p1.jpg -colorspace HSL -channel B -separate -edge 2 -resize 12x12! -compress None pnm:-
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