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List: kde-bugs-dist
Subject: [Bug 148382] overexposure indication already when fully "saturated"
From: Arnd Baecker <arnd.baecker () web ! de>
Date: 2007-09-01 12:33:51
Message-ID: 20070901123351.29883.qmail () ktown ! kde ! org
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http://bugs.kde.org/show_bug.cgi?id=148382
------- Additional Comments From arnd.baecker web de 2007-09-01 14:33 -------
Currently it is already possible
to change the colors for over/under exposure.
So this would mean to add two more colors for over-exposure indication?
(do we need the same for under-exposure?, presumably not ...)
Gilles, I do think that individual R, G, B channels can be
overexposed, see e.g.
""" You need to have a histogram that shows each of the R, G and B
channels. Single channel histograms don't show when just one color
is overexposed."""
(from http://www.kenrockwell.com/tech/yrgb.htm)
Therefore I am not sure whether averaging is the right approach.
Any value 255 could mean that this was 256 or more, clipped to 255.
I still find #4 convincing.
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