Thought about the CA aspect myself but don't know the answer. If it
makes wrong assumption about radial degree and direction perhaps that
can be tackled by image rotation or shifting... than again, maybe not.
Chuck Norcutt
Moose wrote:
> Winsor Crosby wrote:
>> It was kind of joke about competing with underwater photographer. But
>> I was not talking about white balance. Lucite or whatever they use at
>> my local aquarium breaks up the spectrum the bigger the angle of view.
>> So white things in the middle of the frame have red edges at one side
>> of the frame and blue purple edges at the other side of the frame.
>> That is visual even without taking a picture.
>>
> Just a couple of ideas that popped up in my head:
> I
> - Copy red & blue color channels into layers above main image.
> - Move each to correct overlap on its portion of image.
> - Make them layer masks and paint out the areas not needing correction
> for each color.
>
> II
> Do something similar using CA correction software or plug-in. This is
> really CA, but outside the lens itself. I just don't know if CA
> correction has enough movement range. Also, it may make some assumptions
> about radial degree and direction of the CA that could be wrong.
>
> Moose
>
> ==============================================
> List usage info: http://www.zuikoholic.com
> List nannies: olympusadmin@xxxxxxxxxx
> ==============================================
>
>
>
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|