AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2004.02.24 20:02 "[Tiff] Support for 16-bits per sample images", by
2004.02.24 15:39 "Re: [Tiff] Support for 16-bits per sample images", by Andrey Kiselev
2004.02.24 19:14 "Re: [Tiff] Support for 16-bits per sample images", by Chris Cox
2004.02.24 15:41 "Re: [Tiff] Support for 16-bits per sample images", by Frank Warmerdam
2004.02.24 15:54 "Re: [Tiff] Support for 16-bits per sample images", by Bob Friesenhahn
2004.02.24 19:46 "Re: [Tiff] Support for 16-bits per sample images", by Bob Friesenhahn
2004.02.25 11:02 "Re: [Tiff] Support for 16-bits per sample images", by
2004.02.25 05:59 "Re: [Tiff] Support for 16-bits per sample images", by Andrey Kiselev

2004.02.24 15:54 "Re: [Tiff] 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