[Digikam-devel] [Bug 305382] editing RAW gives artefacts with Bilinear quality

[Gilles Caulier]

https://bugs.kde.org/show_bug.cgi?id=305382

--- Comment #19 from Gilles Caulier <caulier.gilles at gmail.com> ---
Created attachment 74861
  --> https://bugs.kde.org/attachment.cgi?id=74861&action=edit
Makefile.dist used to reproduce artifacts problem with LibRaw

Alex,

I found the problem... It's in libraw source code. I'm sure. I can reproduce
the artifacts problem with official Libraw 0.15.0-beta1 tarball.

The problem is about "-O4" gcc compilation optimization option. If you remove
it from offcial MakeFile.dist, the artifacts problem is reproducible with
"dcraw_emu -q0 myrawfile.NEF" (NEF is just and example, it's also reproducible
with CR2 files...)

Gilles Caulier

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