Just noticed that the JPEG patch I suggested would not succeed in
retrieving ICC profiles larger than 64K, because these would be split
across multiple APP2 markers. New code:
JpegImagePlugin.py
83a84,105
> elif marker == 0xFFE2 and s[:12] == "ICC_PROFILE\0":
> # Since an ICC profile can be larger than the maximum size of
> # a JPEG marker (64K), we need provisions to split it into
> # multiple markers. The format defined by the ICC specifies
> # one or more APP2 markers containing the following data:
> # Identifying string ASCII "ICC_PROFILE\0" (12 bytes)
> # Marker sequence number 1, 2, etc (1 byte)
> # Number of markers Total of APP2's used (1 byte)
> # Profile data (remainder of APP2 data)
> # Decoders should use the marker sequence numbers to
> # reassemble the profile, rather than assuming that the APP2
> # markers appear in the correct sequence.
> if not self.info.has_key("icc_profile"):
> self.icc_profile_marker_prev = "\0"
> self.info["icc_profile"] = ""
> icc_profile_marker_curr = s[12]
> if self.icc_profile_marker_prev < icc_profile_marker_curr:
> self.info["icc_profile"] += s[14:]
> else:
> self.info["icc_profile"] = s[14:] + \
> self.info["icc_profile"]
> self.icc_profile_marker_prev = icc_profile_marker_curr
Regards,
Florian
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