diff --git a/PPOCRLabel/README.md b/PPOCRLabel/README.md
index 633d042b7308730816503470818d64982767a170..13500f89363784d7ad8e48580acad20fe58d6bd6 100644
--- a/PPOCRLabel/README.md
+++ b/PPOCRLabel/README.md
@@ -29,9 +29,7 @@ PaddleOCR models has been built in PPOCRLabel, please refer to [PaddleOCR instal
 
 ### 2. Install PPOCRLabel
 
-#### Windows + Anaconda
-
-Download and install [Anaconda](https://www.anaconda.com/download/#download) (Python 3+)
+#### Windows
 
 ```
 pip install pyqt5
diff --git a/PPOCRLabel/README_ch.md b/PPOCRLabel/README_ch.md
index c214698f40fb8aac83de8bb06bdb1c8f9cac986e..8c0f1a0d5b45416a47e57d5e383072be1a7571e6 100644
--- a/PPOCRLabel/README_ch.md
+++ b/PPOCRLabel/README_ch.md
@@ -31,7 +31,7 @@ PPOCRLabel是一款适用于OCR领域的半自动化图形标注工具，内置P
 PPOCRLabel内置PaddleOCR模型，故请参考[PaddleOCR安装文档](https://github.com/PaddlePaddle/PaddleOCR/blob/develop/doc/doc_ch/installation.md)准备好PaddleOCR，并确保PaddleOCR安装成功。
 
 ### 2. 安装PPOCRLabel
-#### Windows + Anaconda
+#### Windows
 
 ```
 pip install pyqt5
diff --git a/PPOCRLabel/libs/utils.py b/PPOCRLabel/libs/utils.py
index cb1c92e7a9cf21c3fca289e50c48e6db580777ec..9be930a7453458f838fbae777ed58773e04a09e1 100644
--- a/PPOCRLabel/libs/utils.py
+++ b/PPOCRLabel/libs/utils.py
@@ -124,6 +124,15 @@ def natural_sort(list, key=lambda s:s):
 
 
 def get_rotate_crop_image(img, points):
+    # Use Green's theory to judge clockwise or counterclockwise
+    # author: biyanhua
+    d = 0.0
+    for index in range(-1, 3):
+        d += -0.5 * (points[index + 1][1] + points[index][1]) * (
+                    points[index + 1][0] - points[index][0])
+    if d < 0: # counterclockwise
+        tmp = np.array(points)
+        points[1], points[3] = tmp[3], tmp[1]
 
     try:
         img_crop_width = int(