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#
# The Python Imaging Library
# $Id: image2py.py 2134 2004-10-06 08:55:20Z fredrik $
#
# convert an image to a Python module
#
# to use the module, import it and access the "IMAGE" variable
#
# import img1
# im = img1.IMAGE
#
# the variable name can be changed with the -n option
#
# note that the application using this module must include JPEG
# and/or ZIP decoders, unless the -u option is used.
#
# Copyright (c) Secret Labs AB 1997. All rights reserved.
# Copyright (c) Fredrik Lundh 1997.
#
# See the README file for information on usage and redistribution.
#
import Image
import getopt, string, StringIO, sys
octdigits = "01234567"
def usage():
print "image2py 0.1/97-01-03 -- convert image to python module"
print
print "Usage: image2py [options] imagefile pyfile"
print
print "Options:"
print " -n <name> set variable name (default is 'IMAGE')"
print " -l use lossy compression (JPEG) if suitable"
print " -u disable compression"
print
print "Provided you use distinct variable names, the output"
print "files can be concatenated into one large module file."
sys.exit(1)
try:
opt, argv = getopt.getopt(sys.argv[1:], "n:lu")
except getopt.error, v:
usage()
name = "IMAGE"
lossy = 0
compress = 1
for o, a in opt:
if o == "-n":
name = a
elif o == "-l":
lossy = 1
elif o == "-u":
compress = 0
if len(argv) != 2:
usage()
# --------------------------------------------------------------------
# convert image to string
im = Image.open(argv[0])
if im.format == "JPEG" and compress:
# store as is
data = open(argv[0], "rb").read()
else:
# load and store as PNG
fp = StringIO.StringIO()
if compress:
if lossy and im.mode in ["L", "RGB"]:
im.save(fp, "JPEG")
else:
im.convert("RGB").save(fp, "PNG")
else:
im.save(fp, "PPM") # FIXME: won't work with "P" images
data = fp.getvalue()
# --------------------------------------------------------------------
# convert string to python module (this is not very fast...)
fp = open(argv[1], "w")
data = repr(data)
fp.write("# generated by image2py %s\n" % argv[0])
fp.write("import Image, StringIO\n")
word = "%s = Image.open(StringIO.StringIO('" % name
fp.write(word)
c = len(word)
i = 1
while i < len(data)-1:
if data[i] != "\\":
word = data[i]
i = i + 1
else:
if data[i+1] in octdigits:
for n in range(2, 5):
if data[i+n] not in octdigits:
break
word = data[i:i+n]
i = i + n
else:
word = data[i:i+2]
i = i + 2
l = len(word)
if c + l >= 78-1:
# fp.write("'\n'")
fp.write("\\\n")
c = 0
fp.write(word)
c = c + l
fp.write("'))\n")
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