mirror of
https://github.com/oDinZu/callirhoe.git
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48170487a9
git-svn-id: https://callirhoe.googlecode.com/svn/trunk@136 81c8bb96-aa45-f2e2-0eef-c4fa4a15c6df
266 lines
13 KiB
Python
Executable File
266 lines
13 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, parse_month_range, parse_year
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import optparse
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def run_callirhoe(style, w, h, args, outfile):
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if subprocess.call(['callirhoe', '-s', style, '--paper=-%d:-%d' % (w,h)] + args + [outfile]):
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sys.exit("calmagick: calendar creation failed")
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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 lowest_block_avg(self, sz, at_least = 0):
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best = (self.maxval,1,0,0,sz) # avg, sz_ratio, x, y, sz
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w,h = self.size
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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, sz)
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if cur[0] < best[0]:
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best = cur
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if best[0] <= at_least: return best
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return best
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def fit_rect(self, size_range = (0.333, 0.8), at_least = 7, relax = 0.2):
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w,h = self.size
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sz_range = (int(w*size_range[0]+0.5), int(w*size_range[1]+0.5))
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best = self.lowest_block_avg(sz_range[0], at_least)
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for sz in range(sz_range[1],sz_range[0],-1):
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cur = self.lowest_block_avg(sz, at_least)
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if cur[0] <= max(at_least, best[0]*(1+relax)): return cur + (best[0],)
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return best + (best[0],) # avg, sz_ratio, x, y, sz, best_avg
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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] [--pre-magick ...] [--in-magick ...] [--post-magick ...]",
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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=7,
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help="set minimum entropy threshold (0-255) for early termination (0=global minimum) [%default]")
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parser.add_option("--relax", type="float", default=0.2,
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help="relax minimum entropy multiplying by 1+RELAX, to allow for bigger sizes [%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", type="int", default=0,
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help="test entropy minimization algorithm, without creating any calendar: 0=test disabled, "
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"1=show area in original image, 2=show area in quantizer, 3=print minimum entropy area in STDOUT as X Y W H, "
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"without generating any files at all [%default]")
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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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cal = optparse.OptionGroup(parser, "Calendar Options", "These options determine how callirhoe is invoked.")
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cal.add_option("-s", "--style", default="transparent",
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help="calendar default style [%default]")
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cal.add_option("--range", default=None,
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help="set month range for calendar. Format is MONTH/YEAR or MONTH1-MONTH2/YEAR or "
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"MONTH:SPAN/YEAR. If set, these arguments will be expanded (as positional arguments for callirhoe) "
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"and a calendar will be created for "
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"each month separately, for each input photo. Photo files will be used in a round-robin "
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"fashion if more months are requested. If less months are requested, then the calendar "
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"making process will terminate without having used all available photos.")
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cal.add_option("--vanilla", action="store_true", default=False,
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help="suppress default options --no-footer --border=0")
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parser.add_option_group(cal)
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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("--radius", type="float", default=2,
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help="radius for the entropy computation algorithm [%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; should precede --in-magick and --post-magick")
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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; should precede --post-magick")
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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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def parse_magick_args():
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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[2] = 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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try:
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m = sys.argv.index('--in-magick')
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magickargs[1] = 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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try:
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m = sys.argv.index('--pre-magick')
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magickargs[0] = 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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if ('--post-magick' in magickargs[2] or '--in-magick' in magickargs[2] or
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'--pre-magick' in magickargs[2] or '--in-magick' in magickargs[1] or
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'--pre-magick' in magickargs[1] or '--pre-magick' in magickargs[0]):
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parser.print_help()
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sys.exit(0)
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return magickargs
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if __name__ == '__main__':
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parser = get_parser()
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magickargs = parse_magick_args()
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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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sys.exit(0)
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if options.range:
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if '/' in options.range:
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t = options.range.split('/')
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month,span = parse_month_range(t[0])
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year = parse_year(t[1])
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margs = []
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for m in xrange(span):
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margs += [(month,year)]
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month += 1
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if month > 12: month = 1; year += 1
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print margs
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raise NotImplementedError('This feature is still work-in-progress.')
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else:
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sys.exit("Invalid range format '%s'." % options.range)
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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, '-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, '-scale', '512>', '(', '+clone',
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'-blur', '0x%d' % options.radius, ')', '-compose', 'minus', '-composite',
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'-colorspace', 'Gray', '-normalize', '-unsharp', '0x5', '-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), options.low_entropy, options.relax)
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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 == 1:
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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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if options.test == 2:
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subprocess.call(['convert', img, '-scale', '512>', '(', '+clone',
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'-blur', '0x%d' % options.radius, ')', '-compose', 'minus', '-composite',
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'-colorspace', 'Gray', '-normalize', '-unsharp', '0x5', '-scale', resize, '-normalize',
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'-scale', '%dx%d!' % (w,h), '-region', '%dx%d+%d+%d' % (nw,nh,dx,dy),
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'-negate', base+'-0'+ext])
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elif options.test == 3:
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print dx, dy, nw, nh
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if options.test: sys.exit(0)
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if options.verbose: print "Measuring luminance... ",
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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[2:5])
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#print 'luma =', luma
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negative = luma < options.negative
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if options.verbose: print "DARK" if negative else "LIGHT"
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if options.verbose: print "Generating calendar image (transparent)..."
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if not options.vanilla: argv2.extend(['--no-footer', '--border=0'])
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run_callirhoe(options.style, nw, nh, argv2, '_transparent_cal.png');
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if options.verbose: print "Composing overlay..."
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overlay = ['(', '-negate', '_transparent_cal.png', ')'] if negative else ['_transparent_cal.png']
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subprocess.call(['convert', img] + magickargs[0] + ['-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]) + magickargs[1] +
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['-compose', 'over'] + overlay + ['-geometry', '+%d+%d' % (dx,dy), '-composite'] +
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magickargs[2] + [base+'-0'+ext])
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