Pretty sure that the largest legit TIFF file is 4 gigs in the TIFF-6 spec...where did you get a 10gig TIFF?
I'm working as a Network Administrator for a Medical company which uses a big scanner to scan cells. Cells are scanned 40x and the only output the scanner provides is TIFF. When the cells are scanned 40x, the output TIFF file gets about 9,7GB.
The scanner has a built-in software viewer which can open these large tiff files. The problem relies when these large tiff files need to be opened on other computers that do not have the scanner software.
Just thinking outside the "box" here, but have you tried converting those large TIFF's to Adobe DNG?
Probably will not work, but grasping at straws here.
BIGTIFF is an extension to TIFF that supports files over 4 Gig.
Photoshop CS6 will read them, but cannot write them.
(yes, that's another weekend project I need to finish)
Thanks for the info. I tried it but it refuses to convert the image. It states it's not a negative raw format file. I will try to checjk this way in the meanwhile.
I will check this out tomorrow and let you know if it worked on teh 32-bit OS we have.
Sounds like you're trying to open it in ACR by mistake, OR the file is incorrectly marked as a camera RAW file and not a normal TIFF image.
And if you're working awith an image that large, you really need to be running a 64 bit OS.
The scanned files come from a big Roche cells scanner. Computers which have the Roche utility software can open it and those computer are in 32-bit or 64bit. I have even downloaded a TIFF image, from the nasa site, of 25GB and i could open it on my 32bit Windows OS.
After doing some research, I found the following site http://www.remotesensing.org/libtiff/document.html . From there, I went to the following site : http://www.awaresystems.be/imaging/tiff/tifftags/extension.html and it seems that some tags within the tiff files are not recognized by some viewers.
I also installed Microsoft KB2635500 http://support.microsoft.com/kb/2635500, which solves issues when we try to display a large TIFF file that contains multiple pages, althought this is not the case as we speak of a single file. I also should have tried before installing this KB.
The tiff file (9GB) the user obtained when scanning with a Roche cell scanner is a TIFF file extension. The file I downloaded from the NASA website is also a TIFF file (25GB). I have a 32-bit OS and I could open the NASA tiff file without any problem but another user with a 32-bit OS cannot open any tiff file bigger than 4GB. That user gets the error message stating the file is corrupted or not supported.
I will check later on in the morning when this user arrives.
By the way, I also saw that there were lots of revisions of this TIFF extension. The ROCHE scanner was bought a few years ago and I'm wondering if it has a different revision, althought new software should be able to read old files, like Office 2010 does with 2003 files.
If you've got a small sample of the files produced by that scanner, email it to ccox (AT) adobe (DOT) com and I'll take a look at the file formatting to see what might be wrong.
TIFF can contain a lot of different things, and this one sounds like it's trying to open in ACR for some reason. Some niche vendors even intentionally write incompatible files to lock users into their custom software.
Older versions of Photoshop would not open BIGTIFF images, only CS6 and later versions will open them.
I cannot send it by e-mail because the file is about 9GB big. I have my own personal FTP server and placed this file there. You can view the file or download it at the following location:
[ login details removed by admin ]
That's why I said a small sample.
I just need to see the basic format details, not the full 9GB file.
I will check this out because I do not have access to the scanner. I'm only responsible for the network and infrastructure and not for that kind of hardware. I will check this out and get back to you.