Function main

examples/image_processing/filters.cpp:199–245

}

int main(int argc, char **argv) {
    try {
        int device = argc > 1 ? atoi(argv[1]) : 0;
        af::setDevice(device);
        af::info();

        array img =
            loadImage(ASSETS_DIR "/examples/images/vegetable-woman.jpg", true);

        array prew_mag, prew_dir;
        array sob_mag, sob_dir;
        array img1ch = colorSpace(img, AF_GRAY, AF_RGB);
        prewitt(prew_mag, prew_dir, img1ch);
        sobelFilter(sob_mag, sob_dir, img1ch);
        array sprd  = spread(img, 3, 3);
        array hrl   = hurl(img, 10, 1);
        array pckng = pick(img, 40, 2);
        array difog = DifferenceOfGaussian(img, 1, 2);
        array bil   = bilateral(hrl, 3.0f, 40.0f);
        array mf    = medianfilter(hrl, 5, 5);
        array gb    = gaussianblur(hrl, 3, 3, 0.8);
        array emb   = emboss(img, 45, 20, 10);

        af::Window wnd("Image Filters Demo");
        printf("Press ESC while the window is in focus to exit\n");
        while (!wnd.close()) {
            wnd.grid(2, 5);
            wnd(0, 0).image(hrl / 255, "Hurl noise");
            wnd(1, 0).image(gb / 255, "Gaussian blur");
            wnd(0, 1).image(bil / 255, "Bilateral filter on hurl noise");
            wnd(1, 1).image(mf / 255, "Median filter on hurl noise");
            wnd(0, 2).image(prew_mag / 255, "Prewitt edge filter");
            wnd(1, 2).image(sob_mag / 255, "Sobel edge filter");
            wnd(0, 3).image(sprd / 255, "Spread filter");
            wnd(1, 3).image(pckng / 255, "Pick filter");
            wnd(0, 4).image(difog / 255,
                            "Difference of gaussians(3x3 and 5x5)");
            wnd(1, 4).image(emb / 255, "Emboss effect");
            wnd.show();
        }

    } catch (af::exception &e) {
        fprintf(stderr, "%s\n", e.what());
        throw;
    }
    return 0;
}