|
|
|
@ -24,6 +24,10 @@ import struct
|
|
|
|
|
from PIL import Image
|
|
|
|
|
from datetime import datetime
|
|
|
|
|
from jp2 import parsejp2
|
|
|
|
|
try:
|
|
|
|
|
from cStringIO import cStringIO
|
|
|
|
|
except ImportError:
|
|
|
|
|
from io import BytesIO as cStringIO
|
|
|
|
|
|
|
|
|
|
# XXX: Switch to use logging module.
|
|
|
|
|
def debug_out(message, verbose=True):
|
|
|
|
@ -214,85 +218,89 @@ def convert(images, dpi=None, x=None, y=None, title=None, author=None,
|
|
|
|
|
|
|
|
|
|
for imfilename in images:
|
|
|
|
|
debug_out("Reading %s"%imfilename, verbose)
|
|
|
|
|
with open(imfilename, "rb") as im:
|
|
|
|
|
rawdata = im.read()
|
|
|
|
|
im.seek(0)
|
|
|
|
|
try:
|
|
|
|
|
imgdata = Image.open(im)
|
|
|
|
|
except IOError as e:
|
|
|
|
|
# test if it is a jpeg2000 image
|
|
|
|
|
if rawdata[:12] != "\x00\x00\x00\x0C\x6A\x50\x20\x20\x0D\x0A\x87\x0A":
|
|
|
|
|
error_out("cannot read input image (not jpeg2000)")
|
|
|
|
|
error_out("PIL: %s"%e)
|
|
|
|
|
exit(1)
|
|
|
|
|
# image is jpeg2000
|
|
|
|
|
width, height, ics = parsejp2(rawdata)
|
|
|
|
|
imgformat = "JPEG2000"
|
|
|
|
|
|
|
|
|
|
if dpi:
|
|
|
|
|
ndpi = dpi, dpi
|
|
|
|
|
debug_out("input dpi (forced) = %d x %d"%ndpi, verbose)
|
|
|
|
|
else:
|
|
|
|
|
ndpi = (96, 96) # TODO: read real dpi
|
|
|
|
|
debug_out("input dpi = %d x %d"%ndpi, verbose)
|
|
|
|
|
|
|
|
|
|
if colorspace:
|
|
|
|
|
color = colorspace
|
|
|
|
|
debug_out("input colorspace (forced) = %s"%(ics))
|
|
|
|
|
else:
|
|
|
|
|
color = ics
|
|
|
|
|
debug_out("input colorspace = %s"%(ics), verbose)
|
|
|
|
|
try:
|
|
|
|
|
rawdata = imfilename.read()
|
|
|
|
|
im = cStringIO(rawdata)
|
|
|
|
|
except:
|
|
|
|
|
with open(imfilename, "rb") as im:
|
|
|
|
|
rawdata = im.read()
|
|
|
|
|
im = cStringIO(rawdata)
|
|
|
|
|
try:
|
|
|
|
|
imgdata = Image.open(im)
|
|
|
|
|
except IOError as e:
|
|
|
|
|
# test if it is a jpeg2000 image
|
|
|
|
|
if rawdata[:12] != "\x00\x00\x00\x0C\x6A\x50\x20\x20\x0D\x0A\x87\x0A":
|
|
|
|
|
error_out("cannot read input image (not jpeg2000)")
|
|
|
|
|
error_out("PIL: %s"%e)
|
|
|
|
|
exit(1)
|
|
|
|
|
# image is jpeg2000
|
|
|
|
|
width, height, ics = parsejp2(rawdata)
|
|
|
|
|
imgformat = "JPEG2000"
|
|
|
|
|
|
|
|
|
|
if dpi:
|
|
|
|
|
ndpi = dpi, dpi
|
|
|
|
|
debug_out("input dpi (forced) = %d x %d"%ndpi, verbose)
|
|
|
|
|
else:
|
|
|
|
|
width, height = imgdata.size
|
|
|
|
|
imgformat = imgdata.format
|
|
|
|
|
|
|
|
|
|
if dpi:
|
|
|
|
|
ndpi = dpi, dpi
|
|
|
|
|
debug_out("input dpi (forced) = %d x %d"%ndpi, verbose)
|
|
|
|
|
else:
|
|
|
|
|
ndpi = imgdata.info.get("dpi", (96, 96))
|
|
|
|
|
debug_out("input dpi = %d x %d"%ndpi, verbose)
|
|
|
|
|
|
|
|
|
|
if colorspace:
|
|
|
|
|
color = colorspace
|
|
|
|
|
debug_out("input colorspace (forced) = %s"%(color), verbose)
|
|
|
|
|
else:
|
|
|
|
|
color = imgdata.mode
|
|
|
|
|
if color == "CMYK" and imgformat == "JPEG":
|
|
|
|
|
# Adobe inverts CMYK JPEGs for some reason, and others
|
|
|
|
|
# have followed suit as well. Some software assumes the
|
|
|
|
|
# JPEG is inverted if the Adobe tag (APP14), while other
|
|
|
|
|
# software assumes all CMYK JPEGs are inverted. I don't
|
|
|
|
|
# have enough experience with these to know which is
|
|
|
|
|
# better for images currently in the wild, so I'm going
|
|
|
|
|
# with the first approach for now.
|
|
|
|
|
if "adobe" in imgdata.info:
|
|
|
|
|
color = "CMYK;I"
|
|
|
|
|
debug_out("input colorspace = %s"%(color), verbose)
|
|
|
|
|
|
|
|
|
|
debug_out("width x height = %d x %d"%(width,height), verbose)
|
|
|
|
|
debug_out("imgformat = %s"%imgformat, verbose)
|
|
|
|
|
|
|
|
|
|
# depending on the input format, determine whether to pass the raw
|
|
|
|
|
# image or the zlib compressed color information
|
|
|
|
|
if imgformat is "JPEG" or imgformat is "JPEG2000":
|
|
|
|
|
if color == '1':
|
|
|
|
|
error_out("jpeg can't be monochrome")
|
|
|
|
|
exit(1)
|
|
|
|
|
imgdata = rawdata
|
|
|
|
|
ndpi = (96, 96) # TODO: read real dpi
|
|
|
|
|
debug_out("input dpi = %d x %d"%ndpi, verbose)
|
|
|
|
|
|
|
|
|
|
if colorspace:
|
|
|
|
|
color = colorspace
|
|
|
|
|
debug_out("input colorspace (forced) = %s"%(ics))
|
|
|
|
|
else:
|
|
|
|
|
color = ics
|
|
|
|
|
debug_out("input colorspace = %s"%(ics), verbose)
|
|
|
|
|
else:
|
|
|
|
|
width, height = imgdata.size
|
|
|
|
|
imgformat = imgdata.format
|
|
|
|
|
|
|
|
|
|
if dpi:
|
|
|
|
|
ndpi = dpi, dpi
|
|
|
|
|
debug_out("input dpi (forced) = %d x %d"%ndpi, verbose)
|
|
|
|
|
else:
|
|
|
|
|
ndpi = imgdata.info.get("dpi", (96, 96))
|
|
|
|
|
debug_out("input dpi = %d x %d"%ndpi, verbose)
|
|
|
|
|
|
|
|
|
|
if colorspace:
|
|
|
|
|
color = colorspace
|
|
|
|
|
debug_out("input colorspace (forced) = %s"%(color), verbose)
|
|
|
|
|
else:
|
|
|
|
|
color = imgdata.mode
|
|
|
|
|
if color == "CMYK" and imgformat == "JPEG":
|
|
|
|
|
# Adobe inverts CMYK JPEGs for some reason, and others
|
|
|
|
|
# have followed suit as well. Some software assumes the
|
|
|
|
|
# JPEG is inverted if the Adobe tag (APP14), while other
|
|
|
|
|
# software assumes all CMYK JPEGs are inverted. I don't
|
|
|
|
|
# have enough experience with these to know which is
|
|
|
|
|
# better for images currently in the wild, so I'm going
|
|
|
|
|
# with the first approach for now.
|
|
|
|
|
if "adobe" in imgdata.info:
|
|
|
|
|
color = "CMYK;I"
|
|
|
|
|
debug_out("input colorspace = %s"%(color), verbose)
|
|
|
|
|
|
|
|
|
|
debug_out("width x height = %d x %d"%(width,height), verbose)
|
|
|
|
|
debug_out("imgformat = %s"%imgformat, verbose)
|
|
|
|
|
|
|
|
|
|
# depending on the input format, determine whether to pass the raw
|
|
|
|
|
# image or the zlib compressed color information
|
|
|
|
|
if imgformat is "JPEG" or imgformat is "JPEG2000":
|
|
|
|
|
if color == '1':
|
|
|
|
|
error_out("jpeg can't be monochrome")
|
|
|
|
|
exit(1)
|
|
|
|
|
imgdata = rawdata
|
|
|
|
|
else:
|
|
|
|
|
# because we do not support /CCITTFaxDecode
|
|
|
|
|
if color == '1':
|
|
|
|
|
debug_out("Converting colorspace 1 to L", verbose)
|
|
|
|
|
imgdata = imgdata.convert('L')
|
|
|
|
|
color = 'L'
|
|
|
|
|
elif color in ("RGB", "L", "CMYK", "CMYK;I"):
|
|
|
|
|
debug_out("Colorspace is OK: %s"%color, verbose)
|
|
|
|
|
else:
|
|
|
|
|
# because we do not support /CCITTFaxDecode
|
|
|
|
|
if color == '1':
|
|
|
|
|
debug_out("Converting colorspace 1 to L", verbose)
|
|
|
|
|
imgdata = imgdata.convert('L')
|
|
|
|
|
color = 'L'
|
|
|
|
|
elif color in ("RGB", "L", "CMYK", "CMYK;I"):
|
|
|
|
|
debug_out("Colorspace is OK: %s"%color, verbose)
|
|
|
|
|
else:
|
|
|
|
|
debug_out("Converting colorspace %s to RGB"%color, verbose)
|
|
|
|
|
imgdata = imgdata.convert('RGB')
|
|
|
|
|
color = imgdata.mode
|
|
|
|
|
imgdata = zlib.compress(imgdata.tostring())
|
|
|
|
|
debug_out("Converting colorspace %s to RGB"%color, verbose)
|
|
|
|
|
imgdata = imgdata.convert('RGB')
|
|
|
|
|
color = imgdata.mode
|
|
|
|
|
imgdata = zlib.compress(imgdata.tostring())
|
|
|
|
|
|
|
|
|
|
# pdf units = 1/72 inch
|
|
|
|
|
if not x and not y:
|
|
|
|
|