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معنی عبارت زیر چی میشه؟Where a and b are weighting parameters that control the
deformable contour’s tension and rigidity, respectively, and
x’(s) and x”(s) denote the first and second derivatives of x(s)
with respect to s. The external potential function Eext is
derived from the image so that it takes on its similar values at
the features of interest, such as boundaries. The external
potential functions designed to lead a deformable contour
toward step edges of a gray scale image of region of interest
O(x,y) is given by
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