[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 Kåre Särs changed: What|Removed |Added CC||linuxdav...@gmail.com --- Comment #46 from Kåre

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #45 from Kåre Särs --- Hi, At least there was one bug in libksane! This should now be fixed. libksane could not handle asymmetrical gamma-tables. So it looks like the problem was _not_ in the niash backend after all... I'm not able to

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 Kåre Särs changed: What|Removed |Added Status|CONFIRMED |RESOLVED Version Fixed In|

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #43 from Kåre Särs --- I have now checked the code in niash and found that the gamma-table in niash is 4096 entries with the range 0-255. Libksane has so far expected that the number of entries is the same as the maximum value. This has to

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 Kåre Särs changed: What|Removed |Added Ever confirmed|0 |1 Resolution|WAITINGFORINFO

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #41 from Christoph Feck --- What is the status of this bug? It is unclear what additional information is needed. -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #40 from Ilario Gottardello --- Kåre, you're right!! Changing gamma value trigger the corruption even starting from a clean state!! -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #39 from Ilario Gottardello --- Created attachment 114126 --> https://bugs.kde.org/attachment.cgi?id=114126=edit output log (lvel 255) from clean start but changing gamma value -- You are receiving this mail because: You are watching

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #38 from Ilario Gottardello --- Created attachment 114125 --> https://bugs.kde.org/attachment.cgi?id=114125=edit output log (lvel 255) from clean start -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #37 from Kåre Särs --- Thanks for the logs. Unfortunately in that log level I could not find anything strange except for the gamma table that seems to be 64 16bit entries. I wonder what happens if you remove the rc file and alter the

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #36 from Ilario Gottardello --- These are two executions of skanlite, the first with the rc file and the second one without it: [niash] sane_get_option_descriptor 6 [niash] sane_control_option: option 6, action 0 [niash]

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #35 from Marc Collin --- with tumbleweed I get SANE_DEBUG_NIASH=16 skanlite QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-postgres' qt.qpa.screen: QXcbConnection: Could not connect to display Could not connect to

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 Kåre Särs changed: What|Removed |Added Resolution|--- |WAITINGFORINFO Status|UNCONFIRMED

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #33 from Ilario Gottardello --- (In reply to George Seaton from comment #32) > Removing the Skanliterc in SL7 fixes the broken colour image for me in SL7 > (RHEL7). > If I then restart skanlite then I get the broken colour image preview

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #32 from George Seaton --- Removing the Skanliterc in SL7 fixes the broken colour image for me in SL7 (RHEL7). If I then restart skanlite then I get the broken colour image preview again. Looks like it has to be deleted every time. The

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #31 from Kåre Särs --- Thanks for the update! So if you now close Skanlite and start again does it still work or do you have to remove the rc file every time for it to work? And if it continues to work how does the rc file look now?

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #30 from Ilario Gottardello --- It works Removing the skanliterc file fixed the issue!! I really don't understand why, it doesn't contain odd things.. but, now it works :) -- You are receiving this mail because: You are

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #29 from Ilario Gottardello --- Created attachment 114061 --> https://bugs.kde.org/attachment.cgi?id=114061=edit Skanlite: rc file -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #28 from Ilario Gottardello --- Created attachment 114060 --> https://bugs.kde.org/attachment.cgi?id=114060=edit Skanlite: options and preview -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #27 from Ilario Gottardello --- Created attachment 114059 --> https://bugs.kde.org/attachment.cgi?id=114059=edit Digikam: options and preview -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 Marc Collin changed: What|Removed |Added CC||coll...@laboiteaprog.com --- Comment #26 from

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #25 from Kåre Särs --- I have now investigated my HP Deskjet scanner problem and it turned out to be a bug in the backend. The backend returned bytes_per_line == pixels_per_line even if the image is encoded one bit (not byte) per pixel. I

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #24 from Marc --- I still have the problem, I can provide you information you will ask tonigh -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #23 from Maik Qualmann --- I am currently unable to reproduce problems with Skanlite and my Epson scanner. All scan options work as expected, also line-art. Maik -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #22 from Kåre Särs --- I actually tested the "line-art" option on a HP printer/scanner and yes there is something wrong with converting "line-art" data to a QImage. The preview looks OK tho... Now that I have a HP scanner I can at least

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #21 from Ilario Gottardello --- Kåre, Maik, if you need some test with the HP ScanJet I am willing to help. Are the options screenshots still needed? -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #20 from Maik Qualmann --- You're right, the preview must come from the KSaneWidget. We use the libksane from the system, if it is not available, we compile an internal one from git/master. I'll check it tonight and see if I can reproduce

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #19 from Kåre Särs --- Hi Maik, Do you mean that Digikam just doesn't use the KSaneWidget::toQImage() or that it doesn't use vanilla libksane? The thing is that the preview window should be identical in both applications if vanilla

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 Maik Qualmann changed: What|Removed |Added CC||metzping...@gmail.com --- Comment #18 from

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #17 from Kåre Särs --- Thanks for the update and the screen-shots. Could you also take screen-shots of the "Scanner Specific" options in Skanlite and Digikam? I suspect that the problem might be that Skanlite uses different default values

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #16 from Ilario Gottardello --- Created attachment 113972 --> https://bugs.kde.org/attachment.cgi?id=113972=edit Digikam window This is the digikam window (with no document on the scanner, but it works well) -- You are receiving this

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #15 from Ilario Gottardello --- Created attachment 113971 --> https://bugs.kde.org/attachment.cgi?id=113971=edit Skanlite window This is what I get from a preview from the scanner -- You are receiving this mail because: You are

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #14 from Ilario Gottardello --- (In reply to Kåre Särs from comment #11) > Ilario, > > Can you try with different settings: color mode, color depth, resolution, > gamma,... > > This is probably a scanner specific problem with the

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 George Seaton changed: What|Removed |Added CC|

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #12 from Ilario Gottardello --- Tried with varing combinations of options, still same result: the image is garbled -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #11 from Kåre Särs --- Ilario, Can you try with different settings: color mode, color depth, resolution, gamma,... This is probably a scanner specific problem with the backend(driver) and how it works with Skanlite.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #10 from Ilario Gottardello --- Kåre, unfortunately it doesn't change anything -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #9 from Kåre Särs --- Sorry Marc for not answering earlier. Could you try resetting the scanner options to their default values? Go to "Settings" (Configuration) and click on the "Revert scanner options to default

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #8 from Ilario Gottardello --- forgot to say that I use Ubuntu Neon and skanlite is at version 2.0.1-0neon+16.04+xenial+bu amd64 -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 Ilario Gottardello changed: What|Removed |Added CC|

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #6 from Marc --- Created attachment 101675 --> https://bugs.kde.org/attachment.cgi?id=101675=edit scan like specific option -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #5 from Marc --- Created attachment 101674 --> https://bugs.kde.org/attachment.cgi?id=101674=edit scan lite basic option -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #4 from Kåre Särs --- The thing is that Digikam and Showfoto use the same library as Skanlite... Can you attach a screen-shot of the settings? Both "Basic Options" and "Scanner Specific Options"? -- You are receiving

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #3 from Marc --- i use hp scanjet 3300c get same result with grey or color mode -- You are receiving this mail because: You are watching all bug changes.

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #2 from Kåre Särs --- Thanks for the report! I wonder if you are scanning in 8 or 16 bits per color mode? It looks a bit like it could be a byte order problem. What scanner are you using and are you using 16 bits / color

[Skanlite] [Bug 370972] Scanned image is bad

https://bugs.kde.org/show_bug.cgi?id=370972 --- Comment #1 from Marc --- Created attachment 101593 --> https://bugs.kde.org/attachment.cgi?id=101593=edit scanned image with skanlite scanned image with skanlite -- You are receiving this mail because: You are