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December 1998

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1998.12.08 21:19 "TIFFReadRGBAImage()", by Frank Warmerdam

Folks,

I imagine this has come up many times before, but I just recently joined
the list after a few years off it, so I don't know the answer. 

Is there a reason that the TIFFReadRGBAImage() and related functions only
allows you to do the whole image in one pass?  What I would like, is an
API that allowed me to read a single tile or strip into an RGBA buffer
with all the other processing currently found in the TIFFReadRGBAImage()
API.  

I have briefly reviewed the tif_getimage.c code, and doing the above
does not seem trivial.  Would there be significant interest in such a
capability if I took the time to implement it?

I have two clients that I think would benefit from this, so I could 
afford to spend a couple of days on the job.  If it's much more I will
likely have to eat the time myself. 

Until recently I hadn't realized how much of the photometric interpretation
and orientation stuff I have been ignoring. 

Best regards,

-----------------------------------+---------------------------------------
Who can give them back their lives | Frank Warmerdam, Software Developer
and all those wasted years? - Rush | URL http://members.home.com/warmerda
                                   | warmerda@home.com