diff --git a/mdata/crop.py b/mdata/crop.py
index 93b5dfc..1cc3df3 100644
--- a/mdata/crop.py
+++ b/mdata/crop.py
@@ -33,7 +33,7 @@ def crop_Test():
             try:
                 img = cv2.imread(image, cv2.CV_LOAD_IMAGE_UNCHANGED)
                 h, w = img.shape[:2]
-                left, upper = np.random.randint(w - 300), np.random.randint(h - 300)
+                left, upper = random.randint(0, w - 300), random.randint(0, h - 300)
                 img_crop = img[upper:upper + 300, left:left + 300]
                 cv2.imwrite(os.path.join(base_dir, category + '_crop_cv', name),img_crop)
             except Exception as e:
--
libgit2 0.21.2