2008.03.12 07:07 "[Tiff] 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