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February 2004
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2004.02.24 15:54 "Re: Support for 16-bits per sample images", by Bob Friesenhahn
On Tue, 24 Feb 2004 mayankg@iiitb.ac.in wrote: > Hi, > Does the libtiff library supports 16-bits per sample images for both RGB and > CMYK images? > If Yes, then what is the latest version that supports it? > > Also, I found that, the version that i have, does have some level of support > for 16-bit RGB images, but it just truncates the data from 16-bits to 8-bits to > store it as an 8-bit image. Is this statement correct? What the other guys have told you on this list is that libtiff is capable of producing the original 16-bit data, but the interfaces require that you parse the data in your own application. Care must be taken since 16-bit TIFF can be big or little endian and the data is not re-ordered for you. For working open-source examples, you can see GraphicsMagick (http://www.graphicsmagick.org/) or ImageMagick (http://www.imagemagick.org/), both of which support 16-bit TIFF. Bob ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us http://www.simplesystems.org/users/bfriesen