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CStats:SetRect
The SetRect method assigns a CRect object to the CStats object. Statistics will be measured inside this rectangular region.
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CStats:SetRect( CRect ) |
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Suppose a CImage I holds a valid image and that a CRect R exists. The following script fragment initializes CStats for computing statistics inside the rectangle R on the image I:
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S = CStats:new() |
-- create a CStats object |
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S:SetImage( I ) |
-- specify the CImage to be measured |
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S:SetRect( R ) |
-- specify the CRect to be measured |
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mean, sdev = S:MeanSdev() |
-- returns the mean and standard deviation |
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S:delete() |
-- when done with S, remove it from memory |