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September 1999
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1999.09.14 13:54 "Re: uge G4 fax compressed TIFF", by Ed Grissom
Our G4 implementation (non LibTIFF) had problems when the pixels per line value got over 65K. this was due to pervasive use of "shorts" in the G4 algorithm. There were actually two problems, one when the length of the line was over 65K, and one when a single run within a line was over 65K. I am not sure from the description below which dimension is which, but if the 75K dimension is the number of pixels per line, LibTIFF may be running into the same problem that we had. -- ed grissom egrissom@ziimaging.com > -----Original Message----- > From: mccoy@pixar.com [mailto:mccoy@pixar.com] > Sent: Monday, September 13, 1999 7:17 PM > To: tiff@olympiakos.com TIFF; Jacques Thiebauld > Subject: Re: uge G4 fax compressed TIFF > > > >I have a problem trying to read a TIFF containing a 75960 x > 45000 pixels > >G4 fax compressed image! > >The TIFF library is not able to read it. > > What happens when you try to read it? > Any error messages? > How are you reading it? (what libtiff calls or programs)? > > That's over 3 gigapixels, so any program that tries to store the whole > image at once might have some problems. > > Daniel McCoy Pixar mccoy@pixar.com >