1 files changed, 21 insertions, 0 deletions
diff --git a/cv/numeric.hpp b/cv/numeric.hpp
new file mode 100644
index 00000000..2050e8e4
--- /dev/null
+++ b/cv/numeric.hpp
@@ -0,0 +1,21 @@
+#pragma once
+
+#include <type_traits>
+#include <opencv2/core/matx.hpp>
+
+namespace numeric_types {
+    using f = float;
+
+    static_assert(std::is_floating_point_v<f>);
+
+    static constexpr f eps = f(1e-8);
+    static constexpr f pi = f(M_PI);
+
+    template<int n> using vec = cv::Vec<f, n>;
+    using vec2 = vec<2>;
+    using vec3 = vec<3>;
+
+    template<int y, int x> using mat = cv::Matx<f, y, x>;
+    using mat33 = mat<3, 3>;
+    using mat22 = mat<2, 2>;
+}