On Tue, Sep 11, 2012 at 10:38:55AM +0100, Bruno Postle wrote:
> On 11 September 2012 10:03, Rogier Wolff <[email protected]>
> wrote:
> > On Tue, Sep 11, 2012 at 04:09:50AM -0400, Bruno Postle wrote:
> >> Sharpening doesn't survive remapping very well, so you should apply it to
>
> > If my math intuition is good, the -0.5 2 -0.5 convolution is the
> > inverse of 0,1,1,0. Such a convolution might be possible to build into
> > the remapping operation to keep the images as sharp as the original.
>
> Artificially 'sharpened' images are a special case, you don't find
> this kind of data in 'normal' photos, these don't really suffer any
> loss of focus in the standard remapping used by Hugin.
IMHO, when I click "optimal size" it recommends a size where each
source pixel maps to at least one remapped pixel. Bluntly said: If I
take three portrait 2500x4000 images and align them next to each
other, my "optimal size" will have a height of 4000 pixels (plus
whatever is needed because they don't align perfectly).
In this situation, I have the impression I can clearly see that the
remapped images are softer, fuzzier than the originals.
Roger.
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