diff --git a/docs/images/test/test10.jpg b/docs/images/test/test10.jpg
new file mode 100644
index 0000000..4ebd1ef
Binary files /dev/null and b/docs/images/test/test10.jpg differ
diff --git a/src/jscanify-node.js b/src/jscanify-node.js
index 438e67d..aed687e 100644
--- a/src/jscanify-node.js
+++ b/src/jscanify-node.js
@@ -50,7 +50,7 @@ class jscanify {
     cv.GaussianBlur(
       imgGray,
       imgBlur,
-      new cv.Size(5, 5),
+      new cv.Size(3, 3),
       0,
       0,
       cv.BORDER_DEFAULT
diff --git a/src/jscanify.js b/src/jscanify.js
index 1f5dd66..8ccdc4b 100644
--- a/src/jscanify.js
+++ b/src/jscanify.js
@@ -35,7 +35,7 @@
       cv.GaussianBlur(
         imgGray,
         imgBlur,
-        new cv.Size(5, 5),
+        new cv.Size(3, 3),
         0,
         0,
         cv.BORDER_DEFAULT