Function test_smaller

src/backend/cpu/kernel/fast.hpp:39–39

test_smaller() Tests if a pixel x < p - thr

// test_smaller()
// Tests if a pixel x < p - thr
inline int test_smaller(float x, float p, float thr) { return (x < p - thr); }

// test_pixel()
// Returns -1 when x < p - thr