On 21 Mrz., 21:51, Erik Krause <[email protected]> wrote:
> Am 21.03.2011 21:08, schrieb kfj:
>
> > I disagree. I think it's not at all about local contrast (as in focus
> > stacks), but about exposure fusion
>
> Exposure fusion is all about local contrast :-)

Maybe my terminology is wrong. The way I understand it, enfuse does
two different things: look at intensities and colour of single
corresponding pixels (--exposure-weight and --saturation-weight) and/
or look at contrast and entropy in a definable neighbourhood (--
contrast-weight and --entropy-weight).

I was using the term 'exposure fusion' to refer to the first group of
criteria and 'focus stacking' for the second. To me the first bunch
lends itself to the technique described in the enfuse manual under
7.3.2. Common Misconceptions:

"A single image cannot be the source of an exposure series.
Raw-files in particular lend themselves to be converted multiple times
and the results being fused together. The technique is simpler,
faster, and usually even looks better than digital blending (as
opposed to using a graduated neutral density filter) or blending
exposures in an image manipulation program. Moreover, perfect
alignment comes free of charge!"

It seems to me that this technique would not produce images with
different local contrast that would be useful input for a stack of the
second type, using contrast or entropy weighting. But I think the
original post is refering to this technique.

Kay

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