Exif in Jpeg2000?

[Archive]

[Originally posted by eric80 on 2009-06-02 13:41:13-07]

I am thinking about using jpeg2000 (below jp2) lossless compression instead of tiff to archive photographs file.
Using xnview/jpeg2000 from lurawave, the jp2 files takes 1/3 less place than compressed tiff (for a Canon 8MP dslr, ~8MB cr2 file, ~24 MB tiff uncompressed, ~11MB tiff compressed, ~8MB jp2 lossless)
One prerequisite is the ability of the chosen format to store/keep metadata.

I see that exiftool is supposed to read and write jp2 files, but I did not succeeded to use is until now, I get a "format error in file xxx.jp2", which may come from the saving method.

Moreover, I read that jpg2000 has his own xml-based metadata format. And it is not supposed to natively support IPTC and EXIF. So what is the expected behavior of exiftool with such data?

[Archive]

[Originally posted by exiftool on 2009-06-02 14:08:26-07]

Please send me a sample if you have problems writing metadata
to a valid jp2 image.  ExifTool will write all common forms of
metadata to JP2 images (XMP, EXIF, IPTC), but not all software
will be able to read all this.

I am not familiar with an XML format used in JP2 other than
the standard XMP which is XML based.

- Phil