Re: Camera shake undo?

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Gene Heskett wrote:

Yeah, I talk to myself from time to time, old farts have that tendency you know. :-)

Bruno Postle wrote:
Gene Heskett wrote:

I just now downloaded this refocus-it rpm and installed it. While the procedure and plugins browsers can find it, there appears to be no way to actually execute it. It doesn't show up in the tools or transforms menu's nor in the plugin-fu or script-fu pulldowns.

The plug-in has a different name in the menu, but I can't remember exactly or check from here.

If you query the RPM it will tell you:

  rpm -qi gimp-refocus-it

which returns:
Filters/Enhance/Iterative refocus...

And by golly there it is. I'd swear it wasn't there last night. Its also a wee bit slow, taking what appears to be about 20 minutes to process a 24 megabyte image I preloaded. The image, which I can't duplicate again without several days reassembly work, had my camera focused about 9 feet away on the grass instead of the object about a foot away I wanted a record pix of.

The first pass seemed to indicate I needed to expand the top variable, so I ran that up from 6 to 30, and brought the interations down to 4, and I can't tell if its working or not, no progress bar because the screenblanker kicks in before the refresh. 2.5 hours so far. But, if it will do the job, its worth it.

Ok, that adjustment, at 90% done & 4+ hours into the adjustment, would seem to indicate the adjustments I made were apparently in reverse of the desired effect, and for some reason the contrast seems to have gone up quite a bit too.

So my question now is, if I can measure the diameter of a specular highlight thats supposed to be a near point src, is there a way to translate that diameter into a set of desired variables to be applied to this refocus routine to achieve near optimum results from a first pass?

Trial and error doesn't seem to be very productive so far.

--
Cheers, Gene


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