1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
| //
| // Copyright 2019 Olzhas Zhumabek <anonymous.from.applecity@gmail.com>
| //
| // Use, modification and distribution are subject to the Boost Software License,
| // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
| // http://www.boost.org/LICENSE_1_0.txt)
| //
| #ifndef BOOST_GIL_IMAGE_PROCESSING_DETAIL_MATH_HPP
| #define BOOST_GIL_IMAGE_PROCESSING_DETAIL_MATH_HPP
|
| #include <array>
| #include <boost/gil/extension/numeric/kernel.hpp>
|
| namespace boost { namespace gil { namespace detail {
|
| static constexpr double pi = 3.14159265358979323846;
|
| static constexpr std::array<float, 9> dx_sobel = {{-1, 0, 1, -2, 0, 2, -1, 0, 1}};
| static constexpr std::array<float, 9> dx_scharr = {{-1, 0, 1, -1, 0, 1, -1, 0, 1}};
| static constexpr std::array<float, 9> dy_sobel = {{1, 2, 1, 0, 0, 0, -1, -2, -1}};
| static constexpr std::array<float, 9> dy_scharr = {{1, 1, 1, 0, 0, 0, -1, -1, -1}};
|
| template <typename T, typename Allocator>
| inline detail::kernel_2d<T, Allocator> get_identity_kernel()
| {
| detail::kernel_2d<T, Allocator> kernel(1, 0, 0);
| kernel[0] = 1;
| return kernel;
| }
|
| }}} // namespace boost::gil::detail
|
| #endif
|
|
