[sane-devel] The never ending hpusbscsi storry
Hi, Matthias Kindtner wrote: scanimage -L scanimage: symbol lookup error: /usr/lib/sane/libsane-avision.so.1: undefined symbol: sanei_usb_set_timeout With the latest backed you need to update include/sane/sanei_usb.h and sanei/sanei_usb.c from my SVN repository (will go into SANE CVS in the next day). device `avision:/dev/sg0' is a Minolta Dimage Scan Dual II film scanner Don't ever use hpusbscsi. I though I already told all vedors it is that broken that they should never ever ship it. It is the first thing that will be removed in Linux 2.7. If it would be me it would be removed from _all kernels right now_ ... Mar 4 23:40:51 runningdug scsi: Device offlined - not ready after error recovery: host 1 channel 0 id 0 lun 0 Mar 4 23:40:51 runningdug scsi1 (0:0): rejecting I/O to offline device Mar 4 23:40:51 runningdug scsi1 (0:0): rejecting I/O to offline device Mar 4 23:40:51 runningdug scsi1 (0:0): rejecting I/O to offline device A simple plug-out plug-in of the usb solve the problem and I can start once again ... hpusbscsi as it lifes ... I hope there are all messages you need in the mail, otherwise I send it to. You have any Idea for me?? find /lib/modules -name hpusbscsi.*o | xargs rm -fv (or so - assuming no spaces in filenames ...) and build the backend with the updated sanei_usb* files. Or alternatively use a avision backed that is two weeks old (man svn) which does not need the updated sanei functionality. Yours, -- René Rebe - Rubensstr. 64 - 12157 Berlin (Europe / Germany) http://www.exactcode.de/ | http://www.t2-project.org/ +49 (0)30 255 897 45
[sane-devel] [ANN] Unpaper - post-processing scanned book-pages
On Wed, 2005-03-02 at 16:03 +0100, Jens Gulden wrote: Hello, unpaper removes black edges and other photocopy artefacts from scanned images. It also deskews book pages (auto-rotates them to a straight alignment), and centers them on the sheet. Old photocopies can become well-readable PDFs again. Available at http://unpaper.berlios.de/. Hope it's useful. Enjoy, Jens From the Readme: -- unpaper is a post-processing tool for scanned sheets of paper, especially for book pages that have been scanned from previously created photocopies. The main purpose is to make scanned book pages better readable on screen after conversion to PDF. Additionally, unpaper might be useful to enhance the quality of scanned pages before performing optical character recognition (OCR). unpaper tries to clean scanned images by removing dark edges that appeared through scanning or copying on areas outside the actual page content (e.g. dark areas between the left-hand-side and the right-hand-side of a double-sided book-page scan). The program also tries to detect disaligned centering and rotation of pages and will automatically straighten each page by rotating it to the correct angle. This is called deskewing. Note that the automatic processing will sometimes fail. It is always a good idea to manually control the results of unpaper and adjust the parameter settings according to the requirements of the input. Each processing step can also be disabled individually for each sheet. Input and output files can be in either .pbm or .pgm format, as also used by the Linux scanning tools scanimage and scanadf. Conversion to PDF can e.g. be achieved with the Linux tools pgm2tiff, tiffcp and tiff2pdf. -- (It's a small program with 1 single source file only. Almost too small for being an open-source project on its own. If you have ideas to integrate it into other Linux scanning/graphics projects instead, please let me know.) Hello Jens, My proposal/idea would be te place it in a sane-tools package. This would be a new package with for the time being only the unpaper program. Also if there are other tools related to scanners or webcams the have a place to be kept. For example the lprof package see: gkall.hobby.nl/sane-lprof/sane-lprof.html And maybe a place to keep the icc profiles from scanners? Other packages? In this way also the package can maybe be used as a plug-in for some scanner frontend programs? This is the first email about this proposal on the SANE mailinglist so if anybody has comments/ideas?. -- m.vr.gr. Gerard Klaver
[sane-devel] [ANN] Unpaper - post-processing scanned book-pages
Am Sam, 2005-03-05 um 15.50 schrieb gerard klaver: On Wed, 2005-03-02 at 16:03 +0100, Jens Gulden wrote: Hello, =20 unpaper removes black edges and other photocopy artefacts from scanne= d=20 images. It also deskews book pages (auto-rotates them to a straight=20 alignment), and centers them on the sheet. Old photocopies can become well-readable PDFs again. =20 Hello Jens, =20 My proposal/idea would be te place it in a sane-tools package. Hello. It only makes sense to do this when these packages have no other homepages. I think it is better when a package has it=C2=B4s own home and= we set a link to such tools, then we can be sure that we don=C2=B4t handle o= ld versions. Oliver
[sane-devel] [ANN] Unpaper - post-processing scanned book-pages
On Sat, 2005-03-05 at 16:18 +0100, Oliver Rauch wrote: Am Sam, 2005-03-05 um 15.50 schrieb gerard klaver: On Wed, 2005-03-02 at 16:03 +0100, Jens Gulden wrote: Hello, =20 unpaper removes black edges and other photocopy artefacts from scan= ned=20 images. It also deskews book pages (auto-rotates them to a straight= =20 alignment), and centers them on the sheet. Old photocopies can become well-readable PDFs again. =20 Hello Jens, =20 My proposal/idea would be te place it in a sane-tools package. =20 Hello. =20 It only makes sense to do this when these packages have no other homepages. I think it is better when a package has it=B4s own home and = we set a link to such tools, then we can be sure that we don=B4t handle ol= d versions. =20 Oliver =20 =20 I had the idea that Jens (the developer of the unpaper program) is also the maintainer for unpaper in SANE CVS. So SANE CVS contains the new version. --=20 m.vr.gr. Gerard Klaver
[sane-devel] Re: The never ending hpusbscsi storry
Am Samstag, 5. M=E4rz 2005 00:28 schrieb Rene Rebe: Don't ever use hpusbscsi. I though I already told all vedors it is that=20 broken that they should never ever ship it. It is the first thing that=20 will be removed in Linux 2.7. =20 If it would be me it would be removed from _all kernels right now_ ... It shall be. A patch to do that is in the queue. The other users have gone away. Regards Oliver
[sane-devel] [ANN] Unpaper - post-processing scanned book-pages
On Sa, 2005-03-05 at 16:31 +0100, gerard klaver wrote: I had the idea that Jens (the developer of the unpaper program) is also the maintainer for unpaper in SANE CVS. So SANE CVS contains the new version. Incorporating software like that is almost always a bad idea -- it ties release management and other things too closely together, even if the sources are maintained in a single place. I agree with Oliver in that it'd be nice to have a link to this, and debian (and other systems) could adopt a sane-tools meta-package that would depend on the extra tools. johannes
