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Groups > linux.debian.user > #203841
| From | David Wright <deblis@lionunicorn.co.uk> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: [OT] scanned files are large in size |
| Date | 2019-01-03 03:30 +0100 |
| Message-ID | <xc0VH-6fG-5@gated-at.bofh.it> (permalink) |
| References | <xbwbf-3Xz-1@gated-at.bofh.it> <xbxh1-4Bs-25@gated-at.bofh.it> <xbFHz-1wb-3@gated-at.bofh.it> <xbQ0h-7Tf-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed 02 Jan 2019 at 14:44:14 (+0000), Brian wrote: > On Tue 01 Jan 2019 at 22:41:06 -0500, kamaraju kusumanchi wrote: > > > On Tue, Jan 1, 2019 at 1:40 PM <tomas@tuxteam.de> wrote: > > > > > > Yep. The one image is encoded as CCITT (aka Group 4, aka fax [1]), which is > > > passable for low res B&W images, but not that much for hi-res or color (or > > > gray scale). It compresses much worse than the other which is JPEG, which is > > > expressly made for hi-res and color (or grayscale) images. > > > > > > OTOH, CCITT is lossless and JPEG lossy ;-) > > > > > ok, thanks. > > > > > > Questions: > > > > 1) Does the large file size have anything to do with the printer > > > > itself? Is there anything I can do (ex:- update the driver/firmware or > > > > something)? > > > > > > That depends on what is encoding the images: does the scanner itself > > > "make" the PDF? Or some software, computer-side? > > > > > > > The scanner itself makes the pdf files. > > I'm intrigued; I hadn't realised that conversion of the scanned image > for some vendors' devices took place on the device itself. How do you > know this happens? It is the frontend to SANE (xsane or scanimage, for > example) which I've always associated with image aquisition conversion. It really is rather easy. You insert a USB stick into the scanner, press scan, and later observe that a JPEG or PDF file has appeared on the stick, as appropriate. Cheers, David.
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[OT] scanned files are large in size kamaraju kusumanchi <raju.mailinglists@gmail.com> - 2019-01-01 18:40 +0100
Re: [OT] scanned files are large in size <tomas@tuxteam.de> - 2019-01-01 19:50 +0100
Re: [OT] scanned files are large in size Anders Andersson <pipatron@gmail.com> - 2019-01-01 20:00 +0100
Re: [OT] scanned files are large in size "Thomas Schmitt" <scdbackup@gmx.net> - 2019-01-01 20:30 +0100
Re: [OT] scanned files are large in size <tomas@tuxteam.de> - 2019-01-01 20:40 +0100
Re: [OT] scanned files are large in size kamaraju kusumanchi <raju.mailinglists@gmail.com> - 2019-01-02 04:50 +0100
Re: [OT] scanned files are large in size tomas@tuxteam.de - 2019-01-02 10:40 +0100
Re: [OT] scanned files are large in size Joe <joe@jretrading.com> - 2019-01-02 11:10 +0100
Re: [OT] scanned files are large in size <tomas@tuxteam.de> - 2019-01-02 11:30 +0100
Re: [OT] scanned files are large in size deloptes <deloptes@gmail.com> - 2019-01-02 12:10 +0100
Re: [OT] scanned files are large in size Chris Ramsden <chris.ramsden@gmail.com> - 2019-01-02 12:10 +0100
Re: [OT] scanned files are large in size <tomas@tuxteam.de> - 2019-01-02 12:40 +0100
Re: [OT] scanned files are large in size mick crane <mick.crane@gmail.com> - 2019-01-02 20:20 +0100
Re: [OT] scanned files are large in size Brian <ad44@cityscape.co.uk> - 2019-01-02 20:30 +0100
Re: [OT] scanned files are large in size David Wright <deblis@lionunicorn.co.uk> - 2019-01-03 03:50 +0100
Re: [OT] scanned files are large in size Siard <shiems146@kpnplanet.nl> - 2019-01-03 14:10 +0100
Re: [OT] scanned files are large in size Nicolas George <george@nsup.org> - 2019-01-03 14:20 +0100
Re: [OT] scanned files are large in size deloptes <deloptes@gmail.com> - 2019-01-03 15:20 +0100
Re: [OT] scanned files are large in size Siard <shiems146@kpnplanet.nl> - 2019-01-03 16:00 +0100
Re: [OT] scanned files are large in size Nicolas George <george@nsup.org> - 2019-01-03 17:30 +0100
Re: [OT] scanned files are large in size deloptes <deloptes@gmail.com> - 2019-01-03 17:30 +0100
Re: [OT] scanned files are large in size David Wright <deblis@lionunicorn.co.uk> - 2019-01-03 21:30 +0100
Re: [OT] scanned files are large in size Brian <ad44@cityscape.co.uk> - 2019-01-02 15:50 +0100
Re: [OT] scanned files are large in size <tomas@tuxteam.de> - 2019-01-02 16:00 +0100
Re: [OT] scanned files are large in size deloptes <deloptes@gmail.com> - 2019-01-02 16:20 +0100
Re: [OT] scanned files are large in size <tomas@tuxteam.de> - 2019-01-02 16:30 +0100
Re: [OT] scanned files are large in size deloptes <deloptes@gmail.com> - 2019-01-02 17:20 +0100
Re: [OT] scanned files are large in size <tomas@tuxteam.de> - 2019-01-02 17:40 +0100
Re: [OT] scanned files are large in size Brian <ad44@cityscape.co.uk> - 2019-01-02 20:10 +0100
Re: [OT] scanned files are large in size Nicolas George <george@nsup.org> - 2019-01-02 16:20 +0100
Re: [OT] scanned files are large in size tomas@tuxteam.de - 2019-01-02 16:20 +0100
Re: [OT] scanned files are large in size Joe <joe@jretrading.com> - 2019-01-02 18:00 +0100
Re: [OT] scanned files are large in size David Wright <deblis@lionunicorn.co.uk> - 2019-01-03 04:10 +0100
Re: [OT] scanned files are large in size David Wright <deblis@lionunicorn.co.uk> - 2019-01-03 03:30 +0100
Re: [OT] scanned files are large in size kamaraju kusumanchi <raju.mailinglists@gmail.com> - 2019-01-03 05:00 +0100
Re: [OT] scanned files are large in size Brian <ad44@cityscape.co.uk> - 2019-01-04 18:30 +0100
Re: [OT] scanned files are large in size Gene Heskett <gheskett@shentel.net> - 2019-01-04 19:50 +0100
Re: [OT] scanned files are large in size Brian <ad44@cityscape.co.uk> - 2019-01-04 20:50 +0100
Re: [OT] scanned files are large in size deloptes <deloptes@gmail.com> - 2019-01-04 20:40 +0100
Re: [OT] scanned files are large in size Brian <ad44@cityscape.co.uk> - 2019-01-04 21:00 +0100
Re: [OT] scanned files are large in size David Wright <deblis@lionunicorn.co.uk> - 2019-01-05 03:20 +0100
Re: [OT] scanned files are large in size Brian <ad44@cityscape.co.uk> - 2019-01-01 21:10 +0100
Re: [OT] scanned files are large in size kamaraju kusumanchi <raju.mailinglists@gmail.com> - 2019-01-02 05:00 +0100
Re: [OT] scanned files are large in size Brian <ad44@cityscape.co.uk> - 2019-01-02 20:20 +0100
Re: [OT] scanned files are large in size Jörg-Volker Peetz <jvpeetz@web.de> - 2019-01-02 12:40 +0100
Re: [OT] scanned files are large in size kamaraju kusumanchi <raju.mailinglists@gmail.com> - 2019-01-03 05:00 +0100
Re: [OT] scanned files are large in size David Wright <deblis@lionunicorn.co.uk> - 2019-01-03 06:10 +0100
Re: [OT] scanned files are large in size Jörg-Volker Peetz <jvpeetz@web.de> - 2019-01-03 09:40 +0100
Re: [OT] scanned files are large in size Jonathan Dowland <jmtd@debian.org> - 2019-01-03 14:50 +0100
Re: [OT] scanned files are large in size David Wright <deblis@lionunicorn.co.uk> - 2019-01-03 21:50 +0100
Re: [OT] scanned files are large in size Jonathan Dowland <jmtd@debian.org> - 2019-01-04 11:00 +0100
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