Re: [PanoTools-devel] [PanoToolsNG] Re: pano12 future development
- Jim Watters twisted the bytes to say:
Jim> dmgalpha wrote:
>> Use PTblender and output the colour correction curves, then load themJim> The thing I remember most of PTStitchers color and exposure correction
>> into photoshop or the gimp. This will give you the flexibility you
>> need. You can run PTblender with only the images you want corrected.
>> Not ideal, but I think it will satisfy your needs.
Jim> was how much it improved for my fisheye images when I used Crop or
Jim> Select to eliminate the edge of the image circle. I have not tried
Jim> PTBlender or looked at the algorithm but I believe two things would
Jim> benefit the process. So both of these thing may already be implimented.
Jim> First don't over correct Only correct each image 90 to 95 % of the way.
Jim> That way a mistake is not propagated all the way done.
This is a great idea. One way to do implement it is to have 2
different projects, one "cropped" and one not. Then color correct the
cropped, output curves and then use those curves with the
non-cropped. Of course this is just a band-aid solution to do
vignetting correction (see fulla for this).
I guess ideally it would be nice to have a PTblender option that will
use curves as input instead of estimating them itself.
Jim> The second is when comparing the overlap of two image eliminate anything
Jim> pieces for annalists in the overlap that is greatly different. This
Jim> will help for moving items in the images.
PTblender respects the mask to determine the pixels that overlap. I
think masks can have "holes" in the middle of a region, so technically
speaking you should be able to read the images and remove the "ghosts"
and other information that is very different from one image to
another. This, theoretically, should improve blending. It will be
interesting to do it by removing most of the image, leaving only
regions that are expected to be identical from one image to the next,
like the sky. I'll be curious to know how it works if somebody tries
Masks that are different than zero are considered to be part of the
image. So you need to make sure you are using a totally black brush to
paint over them
Jim> Jim Watters
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Daniel M. German "As De Gaulle used to say:
'Aim well, shoot fast
Henri Cartier Bresson -> and get the hell out.'"
dmg (at) uvic (dot) ca
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