diff --git a/smoke/smoketest.js b/smoke/smoketest.js
index 0be6aff..ff1abef 100755
--- a/smoke/smoketest.js
+++ b/smoke/smoketest.js
@@ -2,6 +2,7 @@ var cv = require('../lib/opencv')
 
 var win = new cv.NamedWindow("foo");
 cv.readImage('./examples/stuff.png', function(e, im){
+  im.pyrDown();
   win.show(im);
   setTimeout(function(){
     win.destroy();
diff --git a/src/Matrix.cc b/src/Matrix.cc
index 177c7ee..a0f1684 100755
--- a/src/Matrix.cc
+++ b/src/Matrix.cc
@@ -45,6 +45,8 @@ Matrix::Init(Handle<Object> target) {
 	NODE_SET_PROTOTYPE_METHOD(constructor, "line", Line);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "save", Save);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "resize", Resize);
+	NODE_SET_PROTOTYPE_METHOD(constructor, "pyrDown", PyrDown);
+	NODE_SET_PROTOTYPE_METHOD(constructor, "pyrUp", PyrUp);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "channels", Channels);
 
 	NODE_SET_PROTOTYPE_METHOD(constructor, "convertGrayscale", ConvertGrayscale);
@@ -857,6 +859,21 @@ Matrix::Resize(const v8::Arguments& args){
   return scope.Close(Undefined());
 }
 
+Handle<Value>
+Matrix::PyrDown(const v8::Arguments& args){
+	SETUP_FUNCTION(Matrix)
+
+  cv::pyrDown(self->mat, self->mat);
+  return scope.Close(v8::Undefined());
+}
+
+Handle<Value>
+Matrix::PyrUp(const v8::Arguments& args){
+	SETUP_FUNCTION(Matrix)
+
+  cv::pyrUp(self->mat, self->mat);
+  return scope.Close(v8::Undefined());
+}
 
 Handle<Value>
 Matrix::inRange(const v8::Arguments& args) {
diff --git a/src/Matrix.h b/src/Matrix.h
index 1379c56..cd3184e 100755
--- a/src/Matrix.h
+++ b/src/Matrix.h
@@ -41,6 +41,8 @@ class Matrix: public node::ObjectWrap {
     JSFUNC(ToBufferAsync)
 
     JSFUNC(Resize)
+    JSFUNC(PyrDown)
+    JSFUNC(PyrUp)
 
     JSFUNC(ConvertGrayscale)
     JSFUNC(ConvertHSVscale)