On Sat, 2010-05-22 at 14:06 -0700, dex Otaku wrote:
> I can load one of my panos and hit "Calculate Optimum Size" on the
> stitcher tab, but the behavior is not consistent / as expected:
> * With the pano assembled of 8Mp images, it selects a size ~21,000
> pixels wide
> * With the pano assembled of 10Mp images, it selects a size ~16,000
> pixels wide
> 
> How exactly does hugin figure out its optimal size?  I was under the
> impression that it's supposed to gauge the optimal size by scaling the
> entire pano so that the centre images would be as close to 1:1 [input
> pixels:output pixels] as possible, but it's not behaving that way.
> You'd expect that the 10Mp/frame pano would be larger, not smaller.

If the only difference is the number of pixels in the frame, then more
megapixels input should give more megapixels optimal size for output. It
is supposed to scale to the pixel density of the centre of the output.

Since you are using different cameras, you could also be varying
something else which affects the resolution. The field of view of the
camera, the amount of overlap between the images, the field of view of
the output, and the output projection type could all affect the optimal
size too. Are these similar between your panoramas?

-James


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