Function sobelFilter

examples/image_processing/edge.cpp:32–38

}

void sobelFilter(array &mag, array &dir, const array &in) {
    array Gx, Gy;
    sobel(Gx, Gy, in, 3);
    // Find magnitude and direction
    mag = hypot(Gx, Gy);
    dir = atan2(Gy, Gx);
}

array normalize(const array &in) {
    float mx = max<float>(in);