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From: Jim Watters <jwatt...@photocreations.ca>
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Subject: Re: [hugin-ptx] Re: Dewarping
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Yuv,

I managed to get pretty good results using panotools.

On 2012-10-06 3:42 PM, Yuv wrote:
> Next step would be cool to do this with panotools directly, and maybe
> add functionality to Hugin (or another kind of dedicated front-end
> GUI) to automatically determine the center of the donut and use it to
> unwrap this kind of photo/video.
>
> For those with better skill and more time than me, here are:
> - original image [1]
> - unwrapped by 0-360 software [2]
> - unwrapped by ImageMagick with the command below [3]
If I set the lens as circular fisheye with 310 deg it looks pretty good to me.
I just eye balled the setting.
To optimize to even better setting. Set straight line control points on the 
lights in the ceiling.

p w2000 h1000 f2 v360 u20 n"TIFF"
m g1 i0 f0
i n"Frame00001.png" w1920 h1080 f2 y0 r0 p-90 v310 a0 b0 c0 d0 e0 g0 t0 
C431,1390,7,966
o n"Frame00001.png" w1920 h1080 f2 y0 r0 p-90 v310 a0 b0 c0 d0 e0 g0 t0 
C431,1390,7,966

This simple script could easily be fed into mpremap.


> Thanks again for all the help
> Yuv
>
>
>
>
> [1] <https://www.dropbox.com/s/uq7rqzvy7fmlx9u/Frame00001.png>
> [2] <https://www.dropbox.com/s/5d27ceqq35i4ksy/Proprietary0-360.jpg>
> [3] <https://www.dropbox.com/s/hyn9vgzu4nxkmts/ImageMagick901.tif>
>


-- 
Jim Watters
http://photocreations.ca