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

[sleepless]

Op 24-06-11 11:11, Sven Burmeister schreef:
> Am Freitag, 24. Juni 2011, 09:48:29 schrieb 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.
> Yes, that's the most common use-case.
>
>> 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.
> As written in another email I now found how to deal with the curve and get rid
> of the many points in order to get a smooth curve. Thanks for the hint. the
> reset (for the curve only) etc. are missing in the demosaicing module though.
>
> And I still think that some presets that automatically consider the camera the
> picture was taken with would help those starting with RAW a lot and give them
> a good starting point to manipulate the curve further to their needs.
>
> And of course, there is the issue of not being able to save the curve's
> settings, so if one has more than one camera, one has to change it manually
> every time instead of simply loading a profile one saved before.
Yes you can in 2.0.0 beta 6. There is an option save and load beneath 
the curves. You can actually look in darktable for the curve that your 
camera uses (if it is listed), mimick the curve in digikam and save it 
to reuse every time you want.

Rinus
>> 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.
> I'm afraid I'm too much of a beginner regarding RAW in order to be able to add
> something to black and white.
>
> Sven
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