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2006.11.25 18:00 "Re: Windows HD Photo - any interest?", by Sachin Garg
On 11/25/06, Frank Warmerdam wrote: > Sachin Garg wrote: > > Unless I have missed something, I think it should be possible to > > include its support in libtiff, else libjpeg style approach can > > ofcourse be used. (I am not a lawyer) > > I can't say that I have a good understanding of the HD Photo format. > It seems to use TIFF style directories, but to maintain it's own > complete set of baseline tags, making it ... not TIFF at all really. > > I'd suggest you experiment with support for it either in a working fork > of libtiff or in something that can be layered on libtiff (in the way that > geotiff is) for now. Perhaps when we see what a minimum-disruption > approach to supporting HD Photo would look like, we (the libtiff maintainers) > would be more comfortable with it's incorporation in the core. > > Though I haven't dug deep, on the face of it I'm very offended that > Microsoft has chosen to "do it's own thing" without regard to existing > standards. Like Andrey, I don't feel inclined to bend over backward to > make up for their offense. > > Nevertheless, if you can be patient, perhaps you can bring us around and > we can end up with a libtiff that supports their format smoothly, at > least for reading. To be honest, I myself don't know much about its internals and agree with you that its not a good thing that its not entirely a tiff extension like DNG, which I think follows the standard and is supported by libtiff. (I wonder why they chose to do it this way, maybe I should read the specifications first :-) Sachin Garg [India] www.sachingarg.com | www.c10n.info