diff --git a/ext/opencv/mat.cpp b/ext/opencv/mat.cpp
index 7f34c61..bd47de6 100644
--- a/ext/opencv/mat.cpp
+++ b/ext/opencv/mat.cpp
@@ -736,6 +736,29 @@ namespace rubyopencv {
       return mat2obj(retptr, CLASS_OF(self));
     }
 
+    /*
+     * Computes a dot-product of two vectors.
+     *
+     * @overload dot(value)
+     *   @param value [Mat] Another dot-product operand.
+     *   @return [Number] Dot product
+     * @opencv_func cv::Mat::dot
+     */
+    VALUE rb_dot(VALUE self, VALUE other) {
+      cv::Mat* selfptr = obj2mat(self);
+      VALUE ret = Qnil;
+
+      try {
+	cv::Mat* mat = obj2mat(other);
+	ret = DBL2NUM(selfptr->dot(*mat));
+      }
+      catch (cv::Exception& e) {
+	Error::raise(e);
+      }
+
+      return ret;
+    }
+
     /*
      * Sets all or some of the array elements to the specified value.
      *
@@ -879,6 +902,7 @@ namespace rubyopencv {
       rb_define_method(rb_klass, "*", RUBY_METHOD_FUNC(rb_mul), 1);
       rb_define_method(rb_klass, "/", RUBY_METHOD_FUNC(rb_div), 1);
       rb_define_method(rb_klass, "diag", RUBY_METHOD_FUNC(rb_diag), -1);
+      rb_define_method(rb_klass, "dot", RUBY_METHOD_FUNC(rb_dot), 1);
 
       rb_define_method(rb_klass, "clone", RUBY_METHOD_FUNC(rb_clone), 0);
 
diff --git a/test/test_mat.rb b/test/test_mat.rb
index 8975617..dff32c5 100755
--- a/test/test_mat.rb
+++ b/test/test_mat.rb
@@ -353,6 +353,22 @@ class TestMat < OpenCVTestCase
     }
   end
 
+  def test_dot
+    m0 = Mat.new(2, 1, CV_8U);
+    m0[0, 0] = Scalar.new(1)
+    m0[1, 0] = Scalar.new(2)
+    m1 = Mat.new(2, 1, CV_8U);
+    m1[0, 0] = Scalar.new(3)
+    m1[1, 0] = Scalar.new(4)
+
+    a = m0.dot(m1)
+    assert_in_delta(11.0, a, 0.01)
+
+    assert_raise(TypeError) {
+      m0.dot(DUMMY_OBJ)
+    }
+  end
+
   def test_cvt_color
     m = Mat.new(1, 1, CV_32FC3)
     m[0, 0] = Scalar.new(1.0, 2.0, 3.0)