diff --git a/ext/opencv/cvmat.cpp b/ext/opencv/cvmat.cpp
index d419721..cabcc44 100644
--- a/ext/opencv/cvmat.cpp
+++ b/ext/opencv/cvmat.cpp
@@ -261,6 +261,7 @@ void define_ruby_class()
   rb_define_method(rb_klass, "ne", RUBY_METHOD_FUNC(rb_ne), 1);
   rb_define_method(rb_klass, "in_range", RUBY_METHOD_FUNC(rb_in_range), 2);
   rb_define_method(rb_klass, "abs_diff", RUBY_METHOD_FUNC(rb_abs_diff), 1);
+  rb_define_method(rb_klass, "normalize", RUBY_METHOD_FUNC(rb_normalize), -1);
   rb_define_method(rb_klass, "count_non_zero", RUBY_METHOD_FUNC(rb_count_non_zero), 0);
   rb_define_method(rb_klass, "sum", RUBY_METHOD_FUNC(rb_sum), 0);
   rb_define_method(rb_klass, "avg", RUBY_METHOD_FUNC(rb_avg), -1);
@@ -2250,6 +2251,35 @@ rb_abs_diff(VALUE self, VALUE val)
   return dest;
 }
 
+/*
+ * call-seq:
+ *   normalize(...) -> cvmat
+ *
+ * Normalizes the norm or value range of an array
+ */
+VALUE
+rb_normalize(int argc, VALUE *argv, VALUE self)
+{
+  VALUE alphaVal, betaVal, normTypeVal;
+  rb_scan_args(argc, argv, "03", &alphaVal, &betaVal, &normTypeVal);
+  
+  const double alpha = alphaVal != Qnil ? NUM2DBL(alphaVal) : 1.0;
+  const double beta = betaVal != Qnil ? NUM2DBL(betaVal) : 0.0;
+  const int normType = normTypeVal != Qnil ? NUM2INT(normTypeVal) : cv::NORM_L2;
+  
+  VALUE dest = new_mat_kind_object(cvGetSize(CVARR(self)), self);
+  try {
+    const cv::Mat selfMat(CVMAT(self));
+    cv::Mat destMat(CVMAT(dest));
+    
+    cv::normalize(selfMat, destMat, alpha, beta, normType);
+    
+  } catch (cv::Exception& e) {
+    raise_cverror(e);
+  }
+  return dest;
+}
+
 /*
  * call-seq:
  *   count_non_zero -> int
diff --git a/ext/opencv/cvmat.h b/ext/opencv/cvmat.h
index 2b1ba31..eebc67b 100644
--- a/ext/opencv/cvmat.h
+++ b/ext/opencv/cvmat.h
@@ -107,6 +107,7 @@ VALUE rb_le(VALUE self, VALUE val);
 VALUE rb_ne(VALUE self, VALUE val);
 VALUE rb_in_range(VALUE self, VALUE min, VALUE max);
 VALUE rb_abs_diff(VALUE self, VALUE val);
+VALUE rb_normalize(int argc, VALUE *argv, VALUE self);
 VALUE rb_add_weighted(VALUE klass, VALUE src1, VALUE alpha, VALUE src2, VALUE beta, VALUE gamma);
 /* Statistics */
 VALUE rb_count_non_zero(VALUE self);
diff --git a/ext/opencv/opencv.cpp b/ext/opencv/opencv.cpp
index 0cc616e..b8ec30f 100644
--- a/ext/opencv/opencv.cpp
+++ b/ext/opencv/opencv.cpp
@@ -293,6 +293,12 @@ define_ruby_module()
   rb_define_const(rb_module, "CV_SVD_U_T", INT2FIX(CV_SVD_U_T));
   rb_define_const(rb_module, "CV_SVD_V_T", INT2FIX(CV_SVD_V_T));
 
+  /* Norm types */
+  rb_define_const(rb_module, "CV_NORM_INF", INT2FIX(cv::NORM_INF));
+  rb_define_const(rb_module, "CV_NORM_L1", INT2FIX(cv::NORM_L1));
+  rb_define_const(rb_module, "CV_NORM_L2", INT2FIX(cv::NORM_L2));
+  rb_define_const(rb_module, "CV_NORM_MINMAX", INT2FIX(cv::NORM_MINMAX));
+
   /* Histogram representation format */
   rb_define_const(rb_module, "CV_HIST_ARRAY", INT2FIX(CV_HIST_ARRAY));
   rb_define_const(rb_module, "CV_HIST_SPARSE", INT2FIX(CV_HIST_SPARSE));