diff --git a/MindMap.jpg b/MindMap.jpg
deleted file mode 100644
index b14b341..0000000
Binary files a/MindMap.jpg and /dev/null differ
diff --git a/README.md b/README.md
index 2dce64b..c03824a 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,2 @@
 # Digital_image_processing_I
-
-test
\ No newline at end of file
+## 思维导图：