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November 2004
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2004.11.12 23:33 "Re: Graphics programming with libtiff", by Bob Friesenhahn
On Mon, 8 Nov 2004, Ngo Vu Anh Tu wrote: > Dear Sir/madam, > > I am now working with tiff images, and I have written some code for > working with 8bit grey level TIFF Image and 24 bit colors image. In > my code, I use libtiff library to peform some operation on the > image. Now I have some problems with 16bits image. Do you mind if > telling me about working with 16bit image. The image is large > (~20M), and I think it is grey level. Have you ever working with > 16bit images? Can you give me some advice that what should I do with > 16 bits TIFF image? Your images are indeed 16-bit grayscale. Libtiff may be used with 16-bit images, but your application will need to parse the scanlines it provides. The simple high-level RGB-style functions can not be used. GraphicsMagick (http://www.GraphicsMagick.org/) is able to read your images without any problems. Bob ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us http://www.simplesystems.org/users/bfriesen