Sharpening at green island

[karlo reyes]

This is dedicated to the discussion done here http://www.openphotographyforums.com/forums/showthread.php?t=9643

Hi Karlo,

But do you convert to Lab mode for that, and then back to RGB for final output? The mere 2x conversion alone will potentially introduce a loss of color accuracy. Besides, as Cem pointed out, there are better methods that don't potentially destroy color accuracy because you can stay in RGB mode.

The use of a luminosity sharpening layer adds even more control, because parts of the image can be masked out, and the "blend-if" method reduces the risk of halos and clipping. The creation of such a layer can be easily done with an action.

Here is a demonstration of the Blend-if setup:

Cheers,
Bart

you comments would be very much appreciated this is a good talking point. Ive followed the advice of Bart and Cem and the output is below. Thanks!

 

[karlo reyes]

JITTERS
ISO 50/ 25mm/ f22/ 10"/ ND400

 

[Bart_van_der_Wolf]

JITTERS
ISO 50/ 25mm/ f22/ 10"/ ND400

Hi Karlo,

The sharpening looks fine to me (but maybe I'm biased ;-) ). It's crisp but not overdone. There is some large radius halo visible around the crosses(?), but that would probably not be as noticable on a larger size output.

When you add your extended dark canvas and separation lines, make sure to do that as a layer on top of the others, otherwise the Blend-if approach will try to blend it with the image borders.

As for the image, I'd prefer a bit more visibility/brightness of some of the rocks, if only locally (e.g. with a linear light or overlay layer, or a masked curves adjustment layer). I also wonder how it would look in color. Black and White redition requires strong light and shade shapes to carry the composition.

Bart