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Bug #8866

dt spoils shots geometry of lines

Added by Zeus Panchenko almost 6 years ago.

Status:
Fixed
Priority:
Critical
Category:
Darkroom
Target version:
-
Start date:
08/20/2012
Due date:
% Done:

100%

Affected Version:
git development version
System:
bitness:
64-bit
hardware architecture:
amd64/x86

Description

PROJECT_VERSION "1.0+1241~g61052a2" of 2012.08.20 07:33 EEST

after export image contains "broken" geometry of lines
the lines are shifted (the curves looks shifted in several places)

the samples are here

original camera JPG

exported by dt (with marks at the issue places)

look in dt ui

the image "exported by dt" contains red circles marks at several places where the issue is present

switching off all plugins didn't help, the picture is the same - shifts are present

dt ui preview zoomed to 100% of the image doesn't expose the issue

History

#2 Updated by Simon Spannagel almost 6 years ago

(10:17:00) z_eos hat den Raum verlassen (quit: Remote host closed the connection).
(10:18:48) dtslave: redmine: Bug #8866: dt spoils shots geometry of lines || Bug #8866 (New): dt spoils shots geometry of lines
(10:22:10) Ave: is that just the output scaler at work, again?
(10:22:24) Ave: export full size, then resize with another program (eg imagemagick), still same?
(10:27:18) hanatos: http://www.darktable.org/2012/06/upcoming-features-new-interpolation-modes-and-better-resize/
(10:28:42) hanatos: http://www.darktable.org/wp-content/uploads/2012/05/dt-uipref-commented.png
(10:28:49) hanatos: especially that second one :)

#3 Updated by Zeus Panchenko almost 6 years ago

I had in preferences bilinear, after changing to lanczos3 the issue disappeared ...

#4 Updated by Simon Spannagel almost 6 years ago

  • % Done changed from 0 to 100
  • Status changed from New to Fixed

So let's see this as solved?
At least in git master.

#5 Updated by Zeus Panchenko almost 6 years ago

so, am I correct?

that shifts is not a bug but feature when "preferences" -> "core options" -> "pixel interpolator" -> "bilinear" is choosen? isn't it worth to be documented than?

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