[Digikam-devel] [patch SVN 0.9.0] imageeffect_noisereduction.cpp

[Peter Heckert]

Peter Heckert wrote:
> 1. Set default radius to 5.0.
> Reason: previous default value  1.0 has almost no effect for typical 
> noise.
> Value 5.0 is good for medium noise in almost all cases.
> That does not mean, that always radius 5 is used, because radius is 
> dynamically adapted while filtering.
> This means that radius /can/ grow until 5.0. The amount of growing 
> depends from "threshold" setting.
> That is: /Maximum/ radius is 5.0.
>
> This value is good for the "baby.jpg" image that I almost use for 
> testing.
>
>
> 2.
> Interchanged "Sharpness" and "Lookahead".
>
Ooops, I just have seen, that this patch makes noisereduction crash, 
when I set "Color" to zero.
Possibly I have done something wrong here. Please review it carefully.
I cannot see any error, but I dont understand the userinterface code.

If you can see, what is wrong, please give me a hint.
Would be very helpful for me, so I can continue porting the improved 
filter code.

greetings,

Peter