33         cout << "usage: " << argv[0] << " <Input image> "  << endl;  in main()
43         cout <<  "Image not found" << endl;  in main()
47     cout << endl;  in main()
48     cout << " Edge Preserve Filter" << endl;  in main()
49     cout << "----------------------" << endl;  in main()
51     cout << "Options: " << endl;  in main()
52     cout << endl;  in main()
54     cout << "1) Edge Preserve Smoothing" << endl;  in main()
55     cout << "   -> Using Normalized convolution Filter" << endl;  in main()
56     cout << "   -> Using Recursive Filter" << endl;  in main()
57     cout << "2) Detail Enhancement" << endl;  in main()
58     cout << "3) Pencil sketch/Color Pencil Drawing" << endl;  in main()
59     cout << "4) Stylization" << endl;  in main()
60     cout << endl;  in main()
70         cout << endl;  in main()