diff --git a/README.md b/README.md
index 200a3454..6dcd282a 100644
--- a/README.md
+++ b/README.md
@@ -23,37 +23,37 @@
 
 - **图片处理过程**
 debug_GaussianBlur：
-![1.png](./res/doc_image/debug_GaussianBlur.png)
+![1.png](./res/doc_image/debug_GaussianBlur.jpg)
 
 debug_gray：
-![1.png](./res/doc_image/debug_gray.png)
+![1.png](./res/doc_image/debug_gray.jpg)
 
 debug_Sobel：
-![1.png](./res/doc_image/debug_Sobel.png)
+![1.png](./res/doc_image/debug_Sobel.jpg)
 
 debug_threshold：
-![1.png](./res/doc_image/debug_threshold.png)
+![1.png](./res/doc_image/debug_threshold.jpg)
 
 debug_morphology：
-![1.png](./res/doc_image/debug_morphology.png)
+![1.png](./res/doc_image/debug_morphology.jpg)
 
 debug_Contours：
-![1.png](./res/doc_image/debug_Contours.png)
+![1.png](./res/doc_image/debug_Contours.jpg)
 
 debug_result：
-![1.png](./res/doc_image/debug_result.png)
+![1.png](./res/doc_image/debug_result.jpg)
 
 debug_crop：
-![1.png](./res/doc_image/debug_crop_1.png)
-![1.png](./res/doc_image/debug_crop_2.png)
-![1.png](./res/doc_image/debug_crop_3.png)
-![1.png](./res/doc_image/debug_crop_4.png)
+![1.png](./res/doc_image/debug_crop_1.jpg)
+![1.png](./res/doc_image/debug_crop_2.jpg)
+![1.png](./res/doc_image/debug_crop_3.jpg)
+![1.png](./res/doc_image/debug_crop_4.jpg)
 
 debug_resize：
-![1.png](./res/doc_image/debug_resize_1.png)
-![1.png](./res/doc_image/debug_resize_2.png)
-![1.png](./res/doc_image/debug_resize_3.png)
-![1.png](./res/doc_image/debug_resize_4.png)
+![1.png](./res/doc_image/debug_resize_1.jpg)
+![1.png](./res/doc_image/debug_resize_2.jpg)
+![1.png](./res/doc_image/debug_resize_3.jpg)
+![1.png](./res/doc_image/debug_resize_4.jpg)
 
 
 
@@ -61,7 +61,7 @@ debug_resize：
 待补齐
 
 final_result:
-![1.png](./res/doc_image/result_0.png)
+![1.png](./res/doc_image/result_0.jpg)
 
 
 #### 安装教程