diff --git a/README.md b/README.md
index 38b53a3..f7475c9 100755
--- a/README.md
+++ b/README.md
@@ -49,7 +49,11 @@ base datastructure in OpenCV. Things like images are just matrices of pixels.
 
 #### Creation
 
-        new Matrix(width, height)
+        new Matrix(cols, rows)
+
+Or if you're thinking of a Matrix as an image:
+
+        new Matrix(height, width)
 
 Or you can use opencv to read in image files. Supported formats are in the OpenCV docs, but jpgs etc are supported.
 
diff --git a/src/Matrix.cc b/src/Matrix.cc
index f4e096b..01f1527 100755
--- a/src/Matrix.cc
+++ b/src/Matrix.cc
@@ -105,10 +105,8 @@ Matrix::Matrix(): ObjectWrap() {
 }
 
 
-Matrix::Matrix(int w, int h): ObjectWrap() {
-    mat = cv::Mat(w, h, CV_32FC3);
-	//TODO:Parametrizar esto
-	//mat = cv::Mat(h, w, CV_8UC3);
+Matrix::Matrix(int cols, int rows): ObjectWrap() {
+    mat = cv::Mat(cols, rows, CV_32FC3);
 }
 
 Matrix::Matrix(cv::Mat m, cv::Rect roi): ObjectWrap() {