diff --git a/CM2030 Graphics Programming/Week 15/4. Blur filter/sketch.js b/CM2030 Graphics Programming/Week 15/4. Blur filter/sketch.js
index 5c90889..7b6ffc1 100644
--- a/CM2030 Graphics Programming/Week 15/4. Blur filter/sketch.js	
+++ b/CM2030 Graphics Programming/Week 15/4. Blur filter/sketch.js	
@@ -1,8 +1,8 @@
 let imgIn;
 let matrix =[
-  [1/9, 1/9, 1/9],
-  [1/9, 1/9, 1/9],
-  [1/9, 1/9, 1/9]
+  [1/16, 2/16, 1/16],
+  [2/16, 4/16, 2/16],
+  [1/16, 2/16, 1/16]
 ];
 
 function preload() {