[Digikam-users] Re: Processing RAW images to get to the look of the jpg preview

[David Vincent-Jones]

Without feedback information from the image, I find that, curves are
only able to 'generalize' tonal changes. This is fine typically for
overall contrast changes or changes to major tone areas.

Digikam has an excellent selection of ways (3) to use curves that does
allow for very localized changes but ....  having lost the image
feedback it is virtually impossible to accurately pick the point that is
relevant to ones needs and resorting to 'hunt and peck' methods is more
than frustrating. Possibly you have missed that in the basic DK mode
(after a 'reset' and without clicking either option button) 'regional'
changes that you are looking for are easily achieved.

For black and white work, where I believe tonal adjustments are for me
far more critical, I use rawstudio where I can make intelligent
adjustments on localized areas of the curve.

David

On Thu, 2011-06-23 at 22:51 +0200, Sven Burmeister wrote:
> Am Donnerstag, 23. Juni 2011, 22:13:49 schrieb David Vincent-Jones:
> > Please NO ..... the curves tool in darktable lack real flexibility when
> > working to manipulate small tonal areas. With colour it (sort-of) works;
> > with black and white it is a disaster.
> 
> Can you explain that? In digikam I almost always get sharp bends which I think 
> does not make sense. And moving the points around never gives me what I 
> wanted, in terms of how I would like the curve to look like. I would like to 
> be able to move some region of the curve up, as easy as it works in darktable.
> 
> I can supply some screenshots in order to show what I mean by "moving points 
> never gives me what I want".
> 
> So even if not the darktable way, I think that there is a need for improving 
> the handling of curves in digikam. Darktable might be too simple, but it would 
> be a good start in terms of ease. Adding complexity of usage can always be 
> done.
> 
> Ah – and btw. which curve is the darktable's base-curve in digikam's RAW 
> module?
> 
> Sven
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