diff --git a/.gitignore b/.gitignore
index 7288fd5..e69de29 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +0,0 @@
-*.mat
-*.png
diff --git a/sample-data.mat b/sample-data.mat
new file mode 100755
index 0000000..bed2163
Binary files /dev/null and b/sample-data.mat differ
diff --git a/sample-result.png b/sample-result.png
new file mode 100644
index 0000000..37c8010
Binary files /dev/null and b/sample-result.png differ