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May 2004
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2004.05.13 15:22 "Re: Very big images", by Bob Friesenhahn
On Thu, 13 May 2004, Dlpnet wrote: > I wrote a program which creates TIFF images. So I ve created a > 30000x15000 TIFF image and everything went well and I can see it in > Photoshop CS. > > I retried with a 60000x30000 TIFF image and the creation was correct and > I have a 5,3 Go file (created with PACKBIT compression). BUT I can not > open it in any software (even Photoshop CS doesn t work). TIFF files are limited to a maximum 4GB file size. Most TIFF software will be limited to 2GB file size due to interpretation of the TIFF spec, and operating system limits. > Is there a limit of the size of a TIFF image ? (maybe it s juste a > memory problem, I have 2 Go ram on PC/Win2000 ?) Probably you need dedicated TIFF viewing software. Writing the TIFF as tiled TIFF will help readers considerably. Bob ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us http://www.simplesystems.org/users/bfriesen