[Digikam-devel] [Bug 170170] High quality 8 to 16-bit conversion (histogram repair)

[Jens Mueller]

https://bugs.kde.org/show_bug.cgi?id=170170


Jens Mueller <tschenser at gmx.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tschenser at gmx.de




--- Comment #9 from Jens Mueller <tschenser gmx de>  2010-02-04 18:33:39 ---
@DIK: yes, the patch will make the image slightly brighter. This is to preserve
full reversibleness with current code when doing a 16bit->8bit downscale again.
So you can do as many up/down conversations as you want, the orginal image will
stay the same and you do not lost any information.

@Gilles: As DIK already said, you must add noise to every pixel and every color
channel. This noise will be clipped when doing 16bit->8bit downscale again. So
again, there is no information loss. I know, this sounds a bit weird for the
first time. ;o)

-- 
Configure bugmail: https://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.