24219Re: [PanoToolsNG] Re: Some more tests on Optimal Cubefaces.
- Nov 1, 2008Erik Krause schrieb:
> To simplify the calculation you can simply divide by 4.5 (app.Thanks a lot, that really simple :-)
> In any case: It might be best to not first reduce the equirect and
> then create cubefaces but use a good anti-aliasing interpolator and
> create the smaller cubefaces directly from the larger equirect. This
> saves one interpolation step.
> BTW.: While photoshop creats nice small JPEGs at good quality itI'm using Eric Gerds' DOSUP (Pano2Faces.bat) for conversion. As far as I
> might be no good idea to use it for cubefaces stripes. In any stripe
> there are at least two joints where the single cubefaces don't fit.
> At these joints the jpeg compression creates artifacts that are later
> visible in the resulting panorama. See
> http://www.photopla.net/wwp0703/stripes.php for details.
> If I remember correctly Pano2VR and Pano2QTVR create stripes using a
> different compression scheme near the edges, which avoids these
know it's using spline64 as interpolator. So do you think I could expect
good results when applying the "simplified rule of 70" (e.g. divide
equirectangular image width by 4.5) here? (Good enough to use it as
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