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March 2008
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2008.03.12 07:07 "encapsulate jpeg to TIFF without de-compressing and re-compressing", by Zhang Weiwu
Hi. I had been looking for an way to// //encapsulate an existing jpeg file to TIFF format, without de-compress it first and re-compress it again. I discussed this on imagemagick mailing list, here is the answer from Anthony Thyssen: > It is thus NOT POSIBLE for a general image converter to handle what you > ask without decoding the lossy JPEG format. > > Someone would have needed to write something specific for TIFF to do > this. > > I suggest you just don't save as JPEG compression in the TIFF format, > or try to find a program that can do it without loss. It is not likely. > > > If you do find such a program. Great, let me know too, so I can add a > note about it in IM Examples, for the TIFF format... > http://www.imagemagick.org/Usage/formats/#tiff I think maybe in libtiff list there might be an answer since the list solved a similar problem (**"how to convert a JPEG-IN-TIFF file to jpeg file without decomress & compress", by Kelvin Zhong * <http://www.asmail.be/msg0055147690.html>* So, can libtiff does this? Thanks! -- Real Softservice Huateng Tower, Unit 1788 Jia 302 3rd area of Jinsong, Chao Yang Tel: +86 (10) 8773 0650 ext 603 Mobile: 135 9950 2413 http://www.realss.com