[Digikam-users] Re: Adjustment of Histogram

[Gilles Caulier]

Ok, look under Levels Adjust tool. similar indicator already exist. If
it's exactly what you need, i can take a look to do the same in Curves
Adjust tool.

Please report this whish in KDE bugzilla, just to fill my TODO list.

Thanks in advance

Gilles Caulier

2011/2/14 davidvj <davidvincentjones at gmail.com>:
>
> Working extensively in Black and White I find a real need to tweak the
> histogram to obtain ideal separation between similar  luminescence areas. To
> do this I make substantial use of the 'Curve Adjust' Histogram. The tool in
> DK has several very fine options but is very difficult to apply since, a few
> versions ago, we lost correlation between image brightness values and the
> relative position on the curve.
>
> The enclosed clip shows how it works on an other product. A very simple line
> is drawn that replicates the value under the cursor (as the cursor moves,
> the line on the histogram also moves). Not very sophisticated but of immense
> value.
>
> http://digikam.1695700.n4.nabble.com/file/n3305759/hist1.jpg
>
> Without some form of correlation adjusting the curve is very 'hit and miss'
> and much of this feature's value is lost. I really hope that 2.0 will see
> this back in place. For me, the curve is the ultimate tool for tonal
> correction.
>
> Thanks
>
> David
> --
> View this message in context: http://digikam.1695700.n4.nabble.com/Adjustment-of-Histogram-tp3305759p3305759.html
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