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gwrapimages.py
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Mon, Oct 7, 00:39

gwrapimages.py
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#!/usr/bin/env python
import glob
import os
import sys
from optparse import OptionParser
import Image
####################################################################################
def parse_options():
####################################################################################
usage = "usage: %prog [options] file"
parser = OptionParser(usage=usage)
parser.add_option("-d","--dir",
action="store",
dest="dir",
type="string",
default="tmp",
help="directory for png files")
parser.add_option("--istart",
action="store",
dest="istart",
type="int",
default=0,
help="first number of frame")
parser.add_option("--ratio",
action="store",
dest="ratio",
type="float",
default=None,
help="screen ratio")
parser.add_option("--maxwidth",
action="store",
dest="maxwidth",
type="int",
default=2000,
help="max image width")
(options, args) = parser.parse_args()
if len(args) == 0:
if not options.only_film:
print "you must specify at least a filename"
sys.exit(0)
return args,options
####################################################################################
#
# MAIN
#
####################################################################################
files, options = parse_options()
directory1 = files[0]
directory2 = files[1]
files1 = glob.glob("%s/*"%(directory1))
files2 = glob.glob("%s/*"%(directory2))
files1.sort()
files2.sort()
#if len(files1) != len(files2):
# raise "files in dir1 differents than in dir 2"
if not os.path.exists(options.dir):
os.mkdir(options.dir)
i = -1 + options.istart
n = len(files1)
for n in xrange(n):
i = i + 1
f1 = files1[n]
f2 = files2[n]
f3 = "%s/%08d.png"%(options.dir,i)
nums = nums = "%8d/%8d"%(i,n)
print "%s --> %s"%(nums,f3)
#os.system("convert +append %s %s %s"%(f1,f2,f3))
# left image
imgl = Image.open(f1)
# right image
imgr = Image.open(f2)
if imgl.size != imgr.size:
raise "Images must have the same shape !"
if options.ratio!=None:
# set the final size
w = imgl.size[0]
h = imgl.size[1]
f = options.ratio * float(h)/float(w)
dw = int(0.5*w* (f - 1))
W = 4*dw + 2*w
size = (W,h)
# new image
img = Image.new('RGB', size, (0,0,0))
img.paste(imgl, (dw, 0, dw+w, h))
img.paste(imgr, (W-dw-w, 0, W-dw, h))
else:
W, H = 2*imgr.size[0], imgr.size[1]
w, h = imgr.size
if W > options.maxwidth: # mplayer limitation
W = options.maxwidth
f = float(options.maxwidth)/(2*imgr.size[0])
newsize = (int(imgr.size[0]*f), int(imgr.size[1]*f))
imgr = imgr.resize(newsize)
imgl = imgl.resize(newsize)
W, H = 2*imgr.size[0], imgr.size[1]
w, h = imgr.size
# new image
img = Image.new('RGB', (W,H), (0,0,0))
img.paste(imgr, (0, 0, w, h))
img.paste(imgl, (0+w, 0, w+w, h))
img.save(f3)

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