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/external/opencv3/modules/features2d/src/
Dbrisk.cpp1863 int two_b = -21 * i_05 + 36 * i0 - 15 * i05; in refine1D_1() local
1865 float ret_val = -float(two_b) / float(2 * two_a); in refine1D_1()
1872 max = float(two_c) + float(two_a) * ret_val * ret_val + float(two_b) * ret_val; in refine1D_1()