https://bugs.kde.org/show_bug.cgi?id=409148

--- Comment #13 from [email protected] ---
I downloaded a a7r3 ARW sample from the web :

https://drive.google.com/open?id=1QXCjf1pQ6rsDV_q57PQ4pKMYi7Uz0LIR

(link take from here : https://www.mattgranger.com/a7r3)

...and compared embedded preview and half size preview with a zoom a 120% to
see the details :

https://imgur.com/e2ivZDO

It's clear, half size is better than embedded preview.

Now, a comparison between half size and a real RAW demosaicing in image editor
:

https://imgur.com/np4u83z

Here i used the most faster way to decode RAW : 8 bits, Bilinear, post
processing to default. The quality is a little bit better, but color are just
more neutral. Time to decode is more longer.

For me there is not a real gain.

Gilles Caulier

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