today: an illustration of the
focus stack blend mode.
consider this older playraw here (sorry since the thumbnails in the PlayRaw category don’t work any more i find it hard to keep track of the original reference… it’s somewhere here…):
beautiful lighting, but not easy to expose. with the blend module, you can now put graphs like this together to try and emulate the mertens/focus stack way of merging images:
this is just one path through the graph, for the ground:
this is the other path, for the sky:
and this is the merged version, i also applied a third curve after the merge (with quite a bit of bias to bring back negative values to the visible range, have to think about whether i want to clamp wavelet coefficients to positive range):
not sure i’m super happy with the result, i’d probably tweak a few values for a while:
i found the expressive power of this kind of combining pixel data quite fun to use!