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2009.02.23 08:31 "Re: losslessly wrap jpeg file into TIFF", by <o.druemmer@callassoftware.com>
Hi, maybe this is not a politicallly correct comment on a TIFF mailing list, but I honestly believe you will be better served by converting the JPEG files to multi page PDF files. Olaf Drümmer On 23.02.2009, at 03:01, Zhang Weiwu wrote: > Joris Van Damme (AWare Systems) 写道: >> Zhang, >> >>> hello. is there a way to use user tool (e.g. tiffcp) to enclose jpeg >>> file into tiff losslessly? It should be in theory possible because >>> TIFF >>> can have jpeg as sub-format, but all solution i know of,e.g. using >>> convert(1), recompress the image during convention and reduce its >>> quality. >> >> It's not completely this straightforward. >> > Hi. I can see the implementation difficulty here. However I still > suggest to the developers that somebody would be brave and take this > job, because it has practical use case. > > Users working in companies dealing with a lot of documents find it > easier to manage documents if using TIFF to join pages of text that > was > part of a same original document into single TIFF instead of a zip > archive of hundreds of images. The ease-of-management comes because of > ease faxing the document as a whole, ease of doing process to all > pages > (e.g. cut the margin), and being sure the pages are always in the > right > order despite user's preference of sorting files in directories. > However chances are they received the documents as a lot of jpeg file > in the first place. And they naturally want to enclose them into > TIFF or > PDF without losing quality. > _______________________________________________ > Tiff mailing list: Tiff@lists.maptools.org > http://lists.maptools.org/mailman/listinfo/tiff > http://www.remotesensing.org/libtiff/ -- Olaf Druemmer | Managing Director | callas software GmbH | Schoenhauser Allee 6/7 | 10119 Berlin Tel +49.30.4439031-0 | Fax +49.30.4416402 | o.druemmer@callassoftware.com | www.callassoftware.com Amtsgericht Charlottenburg, HRB 59615 | Geschäftsführung: Olaf Drümmer, Ulrich Frotscher _______________________________________________ Tiff mailing list: Tiff@lists.maptools.org http://lists.maptools.org/mailman/listinfo/tiff http://www.remotesensing.org/libtiff/