diff --git a/tools/feature_maps_visualization/fm_vis.py b/tools/feature_maps_visualization/fm_vis.py
index d3bea2be3a8772bcf409683d598f8b4b3b2d94e1..efb983cadf1b3c192ba835fd521efb0d3fb904e5 100644
--- a/tools/feature_maps_visualization/fm_vis.py
+++ b/tools/feature_maps_visualization/fm_vis.py
@@ -19,7 +19,6 @@ import numpy as np
 import cv2 
 import utils
 import argparse
-import matplotlib.pyplot as plt 
 
 def parse_args():
     def str2bool(v):
diff --git a/tools/feature_maps_visualization/get_started.md b/tools/feature_maps_visualization/get_started.md
index 72d1949aa09e94867654580c99329b8c764942b3..e11fe968a4659310919866599ac4599d5bc3a03d 100644
--- a/tools/feature_maps_visualization/get_started.md
+++ b/tools/feature_maps_visualization/get_started.md
@@ -23,6 +23,8 @@ tar -xf ResNet50_pretrained.tar
 
 找到我们所需要的特征图位置，设置self.fm将其fetch出来，本文以resnet50中的stem层之后的特征图为例。
 
+在fm_vis.py中修改模型的名字。
+
 在ResNet50的__init__函数中定义self.fm
 ```python
 self.fm = None
@@ -60,6 +62,9 @@ python tools/feature_maps_visualization/fm_vis.py -i the image you want to test
 
 ## 四、结果
 输入图片：  
+
 ![](../../tools/feature_maps_visualization/test.jpg)  
+
 输出特征图：  
-![](../../tools/feature_maps_visualization/fm.jpg)  
\ No newline at end of file
+
+![](../../tools/feature_maps_visualization/fm.jpg)