[ptx] enblend levels

[Benoit POSTE]

    Hello Joachim,

    I had a similar problem with hugin 0.5b2 and enblend 2.1 (w2k), 
posted a topic 3 or 4 weeks ago on this list ... and never got a 
reply, so I assumed it was just me.
    I haven't had time to check with 0.5b3 and enblend 2.2, but it 
probably looks similar to what you describe on XP.

    With all 0.4 versions, the -l option worked when set in hugin (AFAIR).

    Anyway, I hope we'll get some comments this time ;) .

    Benoit.

J. Schneider a écrit :
> Hello,
> I've got a question concerning the use and function of the levels (-l) 
> parameter for enblend.
> I am working on WinXP with hugin 0.5beta3 and enblend 2.2
> 
> I wondered, why enblend didn't manage to do it's usual magic on a small 
> panorama with huge lightness differences. I set the levels parameter in 
> hugin preferences. Results didn't differ because it always used the same 
> 6 levels.
> 
> with hugin:
> -v -w -s -z -l 3
>     -> using 6 blending levels -> fairly bad result
> 
> -v -w -s -z -l 20
>     -> using 6 blending levels -> same result
> 
> Then I put the multiple tiffs "directly" into enblend. (Or rather via a 
> batch file in the sent to menu)
> 
> directly:
> "<program path>\enblend.exe" -v -l %LEVELS% -o %PATH% %FILES%
> 
> -l 3    -> using 3 blending levels -> bad result
> -l 20    -> using 8 blending levels -> relatively good result
> 
> So my questions are:
> - How does enblend determine the number of levels it actually uses?
>   Seemingly never more than specified, but sometimes/usually less.
> - How does it take it's parameters from hugin? (It seems to ignore this
>   particular setting when it is set in hugin)
> - BTW: It seemed to me that there is no difference between -l<number>
>   and -l <number> (with and without space). Right?
> 
> Results and source images can be seen at:
> http://joachim-schneider.medianet-world.de/leveltest/leveltest.html
> 
> 
> Joachim
> 
>