diff --git a/examples/warp_image.js b/examples/warp_image.js
index b2ebfeb..9b11178 100644
--- a/examples/warp_image.js
+++ b/examples/warp_image.js
@@ -1,6 +1,6 @@
 var cv = require('../lib/opencv');
 
-cv.readImage("./quads.jpg", function(err, im) {
+cv.readImage("./mona.png", function(err, im) {
 
   var srcArray = [
     0,0,
@@ -10,14 +10,14 @@ cv.readImage("./quads.jpg", function(err, im) {
   var dstArray = [
     0,0,
     im.width()*.9,im.height()*.1,
-    im.width().im.height(),
+    im.width(),im.height(),
     im.width()*.2,im.height()*.8];
 
   var xfrmMat = im.getPerspectiveTransform(srcArray,dstArray);
   img_warp = im.copy();
   img_warp.warpPerspective(xfrmMat,im.width,im.height,[255,255,255]);
 
-  img_warp.save("/tmp/warp.jpg");
+  img_warp.save("/tmp/mona_warp.png");
 
 });
 
diff --git a/src/Matrix.cc b/src/Matrix.cc
index 643f6af..5b0f960 100755
--- a/src/Matrix.cc
+++ b/src/Matrix.cc
@@ -1762,7 +1762,7 @@ Matrix::PutText(const v8::Arguments& args) {
 
 Handle<Value>
 Matrix::GetPerspectiveTransform(const v8::Arguments& args) {
-    SETUP_FUNCTION(Matrix)
+    HandleScope scope;
 
     // extract quad args
     Local<Object> srcArray = args[0]->ToObject();