LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
September 2004
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
2004.09.15 17:51 "Re: Removing reduced resolution pages", by Andrey Kiselev
On Tue, Sep 14, 2004 at 01:50:05PM +0000, Han The Man wrote: > I have about 50.000 TIFF files, some of them having pages with > "reduced-resolution" pages. > > I want to remove any pages in those TIFF files marked as > reduced-resolution. So in essence, I want to replace the original file > with a new file not having reduced-resolution pages. > > Can I do that reliably using libtiff? If all your image has the same structure you can simply use the tiffcp utility: $ tiffcp input.tiff,0 output.tiff Number after comma specifies the page number to extract (zero based). So above command extracts the first page for you. > Below is a sample output from TIFFINFO. I know (by visual inspection) > that the reduced resolution images are at page 2 and 4. > > The subfiletype is 0x03 for page 2 and 4, but according to the TIFF > 6.0 spec about "Subfiletype", 0x03 means "a single page of a multipage > image". > > Shouldn't TIFFINFO print 0x02 - "reduced-resolution image". > > What am I missing? You shouldn't refer to SubfilteType tag, it is obsoleted and doesn't supported by libtiff for writing. Refer to NewSubfileType tag. Regards, Andrey -- Andrey V. Kiselev Home phone: +7 812 5274898 ICQ# 26871517