def chunk_zTXt(self, pos, len):
# compressed text
s = ImageFile._safe_read(self.fp, len)
k, v = string.split(s, "\0", 1)
comp_method = ord(v[0])
if comp_method != 0:
raise SyntaxError("Unknown compression method %s in zTXt chunk" % comp_method)
import zlib
self.im_info[k] = self.im_text[k] = zlib.decompress(v[1:])
return s
def chunk_zTXt(self, pos, len):
# compressed text
s = ImageFile._safe_read(self.fp, len)
k, v = string.split(s, "\0", 1)
comp_method = ord(v[0])
if comp_method != 0:
raise SyntaxError("Unknown compression method %s in zTXt chunk" %
comp_method)
import zlib
self.im_info[k] = self.im_text[k] = zlib.decompress(v[1:])
return s
def chunk_iCCP(self, pos, len):
# ICC profile
s = ImageFile._safe_read(self.fp, len)
# according to PNG spec, the iCCP chunk contains:
# Profile name 1-79 bytes (character string)
# Null separator 1 byte (null character)
# Compression method 1 byte (0)
# Compressed profile n bytes (zlib with deflate compression)
i = string.find(s, chr(0))
if Image.DEBUG:
print "iCCP profile name", s[:i]
print "Compression method", ord(s[i])
comp_method = ord(s[i])
if comp_method != 0:
raise SyntaxError("Unknown compression method %s in iCCP chunk" % comp_method)
try:
icc_profile = zlib.decompress(s[i+2:])
except zlib.error:
icc_profile = None # FIXME
self.im_info["icc_profile"] = icc_profile
return s
def chunk_iCCP(self, pos, len):
# ICC profile
s = ImageFile._safe_read(self.fp, len)
# according to PNG spec, the iCCP chunk contains:
# Profile name 1-79 bytes (character string)
# Null separator 1 byte (null character)
# Compression method 1 byte (0)
# Compressed profile n bytes (zlib with deflate compression)
i = string.find(s, chr(0))
if Image.DEBUG:
print "iCCP profile name", s[:i]
print "Compression method", ord(s[i])
comp_method = ord(s[i])
if comp_method != 0:
raise SyntaxError("Unknown compression method %s in iCCP chunk" %
comp_method)
try:
icc_profile = zlib.decompress(s[i + 2:])
except zlib.error:
icc_profile = None # FIXME
self.im_info["icc_profile"] = icc_profile
return s
