On Tue 27-Sep-2011 at 06:16 -0700, Calvin McDonald wrote:
In reading the Hugin help it makes it sound like the downscaling is a post processing activity. It even claims the algorithm is inferior and suggests if downscaling is needed to use an image editor post-Hugin. If it's really a post processing activity I wouldn't think it would speed up the stitching process.
Hugin is really bad at heavy downscaling, but 70% is gentle enough not to produce any aliasing artefacts. If you want smaller than this, you should stitch a big picture, then scale it down in an image editor.
Can someone tell me why in general someone would want their pano downscaled by Hugin? In other words, is there a good reason to set this to something besides 100%?
Yes, photos taken with a normal CCD and processed with a deBayer filter have a lot of redundant data. i.e. you can sample them at 70% size, process less pixels, and end up with the same amount of useful information.
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