digikam 4.2.0 : artefacts in previews
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digikam 4.2.0 : artefacts in previews
 
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Re: digikam 4.2.0 : artefacts in previews
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Re: digikam 4.2.0 : artefacts in previews
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Re: digikam 4.2.0 : artefacts in previews
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Re: digikam 4.2.0 : artefacts in previews
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Re: digikam 4.2.0 : artefacts in previews
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Gilles, thanks for the information. Unfortunately I have to downgrade to
DK 4.1.0 which did not have the problem. As you suggested I filed a comment in https://bugs.kde.org/show_bug.cgi?id=337231 Best regards, Robert On 08/08/2014 12:11 PM, Gilles Caulier wrote: > Problem not reproducible here with your image. > > There is an option in Setup/Album View to switch preview in full or > reduced size of image. > > Libjpeg provide a way to reduce image size at loading time. Screen > resolution is used to estimate image size to load. > > See my screenshot here : > > https://www.flickr.com/photos/digikam/14835172186/ > > Here option is disabled. So reduced image size is loaded. Compared to > image editor on the right, image is smooth but do not have any > artefacts has you describe. > > However, as i use WQHD flat screens, perhaps i'm not on the right > context to validate. > > With 4.2.0 release we have introduced a new code to handle HQ screen > resolution has retina display from Apple. Entry in bugzilla is this > one : > > https://bugs.kde.org/show_bug.cgi?id=337231 > > I check this code under Linux, OSX and Windows with different screen > sizes, and all work fine. > > Perhaps screensize returned by your system is wrong. > > I recommend to post a comment in this bugzilla file to have feedback > from original contributor and start investigations... > > In all cases, the turn over on your system is to turn on option in > setup panel for the moment. > > Note : you are not alone with this problem. See this comment : > > https://www.digikam.org/node/715#comment-20800 > > Best > > Gilles Caulier > > 2014-08-06 14:17 GMT+02:00 Robert Zeller <[hidden email]>: >> Gilles, >> >> one more information on this issue: >> my jpgs are 36 Mpx big. To show the entire photo on my screen a zoom >> factor of 18% is used. If I zoom in to 50% or 100% the artifacts >> disappear. To me it looks like the problem is caused by the algorithm >> that reduces the picture view size to the screen size. I still have a >> copy of DK 4.1.0 which does not show this misbehavior. Something must >> have been changed between the two versions. Using Gimp I don't get any >> artifacts, however the Gnome Image viewer eog also produces the same >> kind of artifacts as DK 4.2.0. >> >> I came across one other issue in DK 4.2: When using : settings --> >> configure and switching between the different items in the configure >> menu, DK responses become extremely slow, and DK is using a lot of CPU >> power and it is not possible to cancel the configure window. What is the >> guy doing? >> >> Best regards, >> >> Robert >> >> >> On 08/06/2014 08:42 AM, Robert Zeller wrote: >>> Gilles, >>> >>> the files are too big to be sent by email. Please download the >>> screenshot and the original jpg from my web page: >>> >>> screenshot: www.robert-zeller.org/transfer/DK-4.2.0-artifact-shot.jpg >>> (see the strange pattern in the dome of the mosque and the poor resolution) >>> >>> original: www.robert-zeller.org/transfer/0012-SR-2014_05_06_170343.jpg >>> (file is about 15 MB) >>> >>> I don't see this behavior in previous versions of DK >>> >>> Best regards, >>> >>> Robert >>> >>> >>> >>> On 08/06/2014 12:06 AM, Gilles Caulier wrote: >>>> Can you take a shot and share a screenshot ? >>>> >>>> Problem is not visible here. >>>> >>>> Also, share some files to test here... >>>> >>>> Gilles Caulier >>>> >>>> 2014-08-06 0:00 GMT+02:00 Robert Zeller <[hidden email]>: >>>>> Hello, >>>>> >>>>> I just compiled DK 4.2.0 on openSUSE 13.1 . There were no compilation >>>>> problems. >>>>> BUT: as compared to DK 4.1.0 I see on some photos a relatively strong >>>>> artifact (moirée) on regular structures. Also I have the impression that >>>>> the pictures are not loaded in full resolution. These artifacts seem to >>>>> disappear when using the image editor. Is there a way to remove the >>>>> moiree patterns? or to force DK to load pictures in full resolution? >>>>> Best regards, >>>>> >>>>> Robert >>>>> >>>>> _______________________________________________ >>>>> Digikam-users mailing list >>>>> [hidden email] >>>>> https://mail.kde.org/mailman/listinfo/digikam-users >>>> _______________________________________________ >>>> Digikam-users mailing list >>>> [hidden email] >>>> https://mail.kde.org/mailman/listinfo/digikam-users >>> _______________________________________________ >>> Digikam-users mailing list >>> [hidden email] >>> https://mail.kde.org/mailman/listinfo/digikam-users >> _______________________________________________ >> Digikam-users mailing list >> [hidden email] >> https://mail.kde.org/mailman/listinfo/digikam-users _______________________________________________ Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
robert.vcf (294 bytes)
Re: digikam 4.2.0 : artefacts in previews
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Re: digikam 4.2.0 : artefacts in previews
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Re: digikam 4.2.0 : artefacts in previews
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Re: digikam 4.2.0 : artefacts in previews
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Re: digikam 4.2.0 : artefacts in previews
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Re: digikam 4.2.0 : artefacts in previews
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