User`s guide

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30MIPS User’s Guide – Geometry Correction
Figure 7-19. Warping algorithm setup
Algorithms can be added or removed. If the perspective transform is added fi rst, Mesh Warp
Smythe can be used in addition. If Mesh Warp Smythe or Mesh Warp Bezier is added fi rst, a
combination of algorithms is not allowed.
In this window, grid size is also confi gured. For the control points of an algorithm to be
visible, the grid size is must be at least 1x1.
Increasing grid size during calibration is very convenient. This enable for rough calibration
with few control points, and fi ne tuning with increased grid size as needed.
Decreasing grid size during calibration is not recommended as you may lose fi ne tuning data
you have already added to the grid.
Scaling fi lters
Regardless of the warping algorithms selected, a scaling fi lter will be applied. Scaling fi lters
are confi gured using the Algorithm Setup window. Select the tab “Filter”, Figure 7-20, and
select your desired fi lter. Four different scaling fi lters are supported:
• Lanczos
• B-spline
• C-spline
• Linear