Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.debian.user > #203774
| From | kamaraju kusumanchi <raju.mailinglists@gmail.com> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | [OT] scanned files are large in size |
| Date | 2019-01-01 18:40 +0100 |
| Message-ID | <xbwbf-3Xz-1@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
A scanned document from Canon pixma mx870 printer is significantly larger compared to the same document scanned on a different scanner. When I look at both the images side by side on a PC, there is no visual difference between the two. I am trying to understand the underlying cause and fix it if possible. As shown below, scanned_in_office.pdf is 332Kb, scanned_on_mx870.pdf is 1.7 Mb. % ls -al scanned_in_office.pdf scanned_on_mx870.pdf -rw-r--r-- 1 rajulocal rajulocal 331796 Jan 1 11:54 scanned_in_office.pdf -rw-r--r-- 1 rajulocal rajulocal 1775460 Jan 1 11:48 scanned_on_mx870.pdf Both are are scanned at 600 dpi. The only difference I see is in bpc, enc fields. % pdfimages -list scanned_in_office.pdf page num type width height color comp bpc enc interp object ID x-ppi y-ppi size ratio -------------------------------------------------------------------------------------------- 1 0 image 5104 6600 gray 1 1 ccitt no 7 0 601 600 183K 4.5% 2 1 image 5104 6600 gray 1 1 ccitt no 14 0 601 600 138K 3.4% % pdfimages -list scanned_on_mx870.pdf page num type width height color comp bpc enc interp object ID x-ppi y-ppi size ratio -------------------------------------------------------------------------------------------- 1 0 image 5100 6600 gray 1 8 jpeg no 8 0 600 600 1066K 3.2% 2 1 image 5100 6600 gray 1 8 jpeg no 14 0 600 600 665K 2.0% 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)? 2) Is the difference in image sizes due to the bpc (1 vs. 8) or encoding (ccitt vs jped) fields? 3) If yes, how to change them? thanks raju -- Kamaraju S Kusumanchi | http://raju.shoutwiki.com/wiki/Blog
Back to linux.debian.user | Previous | Next — Next in thread | Find similar | Unroll thread
[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
csiph-web