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pyanaglyph.py
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Sat, Feb 22, 10:47

pyanaglyph.py
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#!/usr/bin/env python
'''
Combine images
Yves Revaz
mar oct 24 16:35:46 CEST 2006
'''
from numarray import *
from optparse import OptionParser
import string
import sys
import os
import Image
import ImageDraw
import ImageFont
import ImagePalette
import ImageTk
def parse_options():
usage = "usage: %prog [options] file"
parser = OptionParser(usage=usage)
# parser.add_option("-f",
# action="store",
# dest="inputfile",
# type="string",
# default = None,
# help="input file",
# metavar=" FILE NAME")
parser.add_option("-o",
action="store",
dest="outputfile",
type="string",
default = None,
help="oputput file",
metavar=" FILE NAME")
(options, args) = parser.parse_args()
if len(args) == 0:
print "you must specify a filename"
sys.exit(0)
files = args
return files,options
#############################
# main
#############################
# get options
files,options = parse_options()
#inputfile = options.inputfile
outputfile = options.outputfile
#############################
# open file
#############################
# red
img = Image.open(files[0])
r,g,b = img.split()
r = fromstring(r.tostring(),UInt8)
g = fromstring(g.tostring(),UInt8)
b = fromstring(b.tostring(),UInt8)
size = img.size
r.shape= (size[1],size[0])
g.shape= (size[1],size[0])
b.shape= (size[1],size[0])
# cut image
r1 = r[:,0:size[0]/2]
g1 = g[:,0:size[0]/2]
b1 = b[:,0:size[0]/2]
r2 = r[:,size[0]/2:]
g2 = g[:,size[0]/2:]
b2 = b[:,size[0]/2:]
r = r1
g = g2
b = b2
r = ravel(r)
g = ravel(g)
b = ravel(b)
# new size
size = (size[0]/2,size[1])
#
image_r = Image.fromstring("L",size,r)
image_g = Image.fromstring("L",size,g)
image_b = Image.fromstring("L",size,b)
# merge image
img = Image.merge("RGB",(image_r,image_g,image_b))
img.save(outputfile)

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