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[tmodes <685489@xxxxxxxxxxxxxxxxxx>]

The sieve2* switches are used to get a better distribution of the cps.
As far as I unterstood the image is divided in sieve2width *
sieve2height parts/rectangles. In each of it cpfind keeps only
sieve2size control points.

If you want to use the setting on the image tab add "--sieve2width 1
--sieve2height 1 --sieve1size %p" to the cpfind parameters. But then you
will get a worser distribution of the cp.

I'm not sure if a complete support of all 3 parameters is really needed
in the GUI. But for further investigations set to wishlist.

** Changed in: hugin
   Importance: Undecided => Wishlist

** Changed in: hugin
       Status: Incomplete => Triaged

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https://bugs.launchpad.net/bugs/685489

Title:
  cpfind - add option to limit number of control points

Status in Hugin - Panorama Tools GUI:
  Triaged

Bug description:
  cpfind is missing a option to limit the the number of control points per pair of images (like autopano-sift-c's --maxmatches option).

Having a large number of control points (cpfind adds 30+) increases the amount of work to get rid of the bad ones.