Bug 118141

Summary:	Thin white horizontal lines in photo prints
Product:	[Applications] gwenview	Reporter:	Bernie <meensb>
Component:	general	Assignee:	Gwenview Bugs <gwenview-bugs-null>
Status:	RESOLVED NOT A BUG
Severity:	normal	CC:	hamboy95, myriam
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Snapshot of photo in digikam Print preview clearly shows a horizontal white line which also shows up on paper print preview digikam 0.9.4

Description Bernie 2005-12-11 22:50:05 UTC

Version:            (using KDE KDE 3.5.0)
Installed from:    SuSE RPMs
OS:                Linux

Photos printed with Gwenview in high resolution on for photo paper sometimes have thin horizontal white line through the photo, both in kdeprinter preview as on paper. Difficult to determine when this happens, but fiddling with the scaling options in the printing dialog of Gwenview causes the lines to shift, so my best guess is that the scaling algorithm is somehow flawed here.

Comment 1 Bernie 2005-12-11 23:03:27 UTC

Created attachment 13870 [details]
Snapshot of photo in digikam

Comment 2 Bernie 2005-12-11 23:04:37 UTC

Created attachment 13871 [details]
Print preview clearly shows a horizontal white line which also shows up on paper

Comment 3 Cristian Tibirna 2005-12-11 23:05:32 UTC

Can you confirm an identical behavior for image printing applications other than gwenview when using kprinter? I am almost convinced that this has nothing to do with kdeprint (which largely only takes PS data from the application and sends it to the printing system).

Comment 4 Michael Goffioul 2005-12-12 09:05:14 UTC

Indeed, I doubt the problem lies in kdeprint. Try to print to a PS file and view it. If the problem exists, then there's 99,99% probability that the problem is in the image viewer program.

Comment 5 Bernie 2005-12-12 19:52:06 UTC

In Gwenview 1.3.1 I choose "print to file (PDF) and on the tab "Image Settings" I choose "scale to" etc and again white lines show up. From these posts I understand that the tab "Image Setting" and its settings belong to Gwenview functionality and not KDEprinter, right ? If so, KDEprinter isn the culprit but very likely it is Gwenview. How can I change the product of this bug to Gwenview ?

Comment 6 Angelo Naselli 2006-12-30 23:40:50 UTC

*** Bug 118205 has been marked as a duplicate of this bug. ***

Comment 7 Angelo Naselli 2006-12-31 00:06:07 UTC

Bernie, I cannot reproduce it here (gwenview 1.4.1) can you check if it's still valid? and if, can you provide the "offending" image? With your attachment it seems ok now.
Thanks,
   Angelo

Comment 8 Angelo Naselli 2007-01-18 23:35:45 UTC

I can't reproduce it and I've got no answers yet. If you think it's still present please reopen it.

Comment 9 Bernie 2008-09-07 16:04:12 UTC

KDE 3.5.10 on opensuse 10.3 x64 , this bug still shows up! No problems when using the GIMP for printing, however each programme using the KDE printing dialogue this shows up (a least for photos). Iĺl attach screenshot of digikam 0.9.4 print preview. These lines exactly show up in the actual print.
Now there seems to be another bug report on the same issue: Bug 155415. Please let me know if I can be of any help...

Regards Bernie

Comment 10 Bernie 2008-09-07 16:09:45 UTC

Created attachment 27295 [details]
print preview digikam 0.9.4

Comment 11 Mark S. 2011-12-30 03:00:53 UTC

Can you confirm if this is still an issue in KDE 4.7.4 and Gwenview 2.7.4?

Comment 12 Myriam Schweingruber 2012-01-02 18:37:56 UTC

Setting status correctly.

Comment 13 Myriam Schweingruber 2013-04-03 13:42:08 UTC

Closing for lack of feedback. Please feel free to reopen this report if you can reproduce this with Gwenview 3.10 or later and provide the requested feedback.