Method computeWs

src/ETF.cpp:132–132

* Paper's Eq(2) */

 * Paper's Eq(2)
 */
inline float ETF::computeWs(const cv::Point2f &x, const cv::Point2f &y, const int r) { return norm(x - y) < r ? 1 : 0; }

/*
 * Paper's Eq(3)