27897Re: [PanoToolsNG] Re: PTShift
- Mar 27 7:01 AMI will try it, but i usually photograph in jpeg, i never tried raw. I am using Windows XP so that should not be the reason why ptshift does not work on CS4. Many thankx
From: Erik Krause <erik.krause@...>
Sent: Friday, March 27, 2009 2:26:06 PM
Subject: [PanoToolsNG] Re: PTShift
Sacha Griffin wrote:
> I'd suggest using another program, especially a raw convertor such as adobeNo, the DNG converter converts from camera raw to DNG raw, nothing else.
> raw. Perhaps adobes standalone dng convertor can do this.
> You can get close with ptshift, but no where near as good as doing it inDepends. If the CA is considerably larger than the bayer pattern the
correction can be applied to jpegs with almost similar effect. Only if
the CA is of the strange type (see
http://wiki. panotools. org/TCA#Strange_ Example ) it is not correctable..
> Plus, it is very difficult to discover the proper values without anPTShift *is* the interactive GUI for panotools radial shift ;-)
> interactive GUI.
> Since you apparently already have cs4, the raw convertor will do you good.That's true most of the time. It does a linear correction only opposed
to radial shift, which allows for a polynomial correction curve.
However, a linear correction is sufficient in almost all cases.
There is BTW a (command line) tool in the hugin package called
tca_correct which allows for fully automatic determination of polynomial
TCA correction parameters.
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