2010.02.11 21:56 "[Tiff] TIFF and IJG JPEG 8", by Bob Friesenhahn

2010.03.17 20:59 "Re: [Tiff] TIFFVStripSize overflow, JPEG decoding", by Lee Cooper

Adam,

  I was actually planning to contribute this to openslide if I manage to get it working. By examining the tiffdump I was able to see that some of the proprietary (and unlabeled) tag values have interesting proportions suggesting a tiled representation. I'm working to get the spec from Hamamatsu so I can close the loop and get this working.

I already tried using libtiff 4.0.2 to read the header and encountered the same overflow message. From what I can tell TIFFVStripSize still uses 32-bit representation in 4.0.2.

Regards,
Lee

If libtiff 3 can be fixed to read the header, OpenSlide can have the support added to it. Otherwise, libtiff 4 will be required.