AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

1997.01.30 23:32 "write subset", by Thomas Loecherbach
1997.01.31 07:30 "Re: write subset", by Kyriakos Georgiou
1997.01.31 07:51 "Re: write subset", by Rainer Wiesenfarth
1997.01.31 13:39 "Re: write subset", by Kyriakos Georgiou
1997.02.03 09:16 "gigamem", by Dr. Klaus Bartz
1997.01.31 16:07 "Re: write subset", by Sam Leffler
1997.01.31 16:13 "Re: write subset", by Gary Burgess
1997.01.31 17:01 "Re: write subset", by Dr. Klaus Bartz

1997.01.30 23:32 "write subset", by Thomas Loecherbach

Is there a way to write a subset of image data to a tiff file? I need to filter a large image, thus read in only subset of the input-image, and then want to write the processed subsets to the disk. I thus need to access the the output file at arbitrary positions instead of writing scanline after scanline.

A similar problem: can I open a file for read/write (I don't want to append a new tiff directory) and read/write scanlines?

Any hints would be greatly appreciated.

--

   Thomas Loecherbach
   Hammon, Jensen, Wallen and Ass.
   8407 Edgewater Drive
   Oakland, CA 94621
   Phone (510)638-6122
   Fax   (510)638-5628