diff --git a/img2yolov7.py b/img2yolov7.py
new file mode 100644
index 0000000..74d6fde
--- /dev/null
+++ b/img2yolov7.py
@@ -0,0 +1,20 @@
+import os
+import cv2
+bmp_dir = r'.'
+jpg_dir = r'png'
+def file_name(file_dir):
+    for root, dirs, files in os.walk(file_dir):
+        count = 1
+        # 当前文件夹所有文件
+        for i in files:
+            # 判断是否以.jpg结尾
+            if i.endswith('.bmp'):
+                # 如果是就改变图片像素为640,480
+                img = cv2.imread(os.path.join(bmp_dir,i),-1)
+                newName = i.replace('.bmp','.png')
+                im2 = cv2.resize(img,(640,640),)  # 为图片重新指定尺寸
+                cv2.imwrite(os.path.join(jpg_dir,newName),im2)
+                print('转变图：%s'%newName)
+        break
+ 
+file_name('./')  # 当前文件夹
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