That post has brilliant insight from Wishgranter and the only explanation I've found of Max features per mpx, which I've found has no effect - there's why.
So is it fair to say, as guideline, that Max features/mpx should be based on:
Max features/img / Image size mpx = Max features/mpx?
e.g. 160k / 20.2mpx = not more than 7.9k Max features per mpx?
Then the Align default settings of 10k Max features/mpx and 40k Max features/img, would be right for images of not less than 4mpx?
And that with Align default setting of 10k Max features/mpx, with 12mpx images, Max features/img should be not less than 120k?
This would seem true with Images overlap Low, in which the whole 12mpx image is used. With Image overlap Medium (default) less of the image is used, and with Image overlap High only the centre of the image is used.
Is there a %age figure for how much of the image is used with Medium and High?
If High was say 40%, then the last calc above would read:
"... with Align default setting of 10k Max features/mpx and Image overlap High, with 12mpx (effectively 4.8mpx) images, Max features/img should be not less than 48k?
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