diff --git a/utils/utils.py b/utils/utils.py
index 0af7e5c4..a6a2478b 100755
--- a/utils/utils.py
+++ b/utils/utils.py
@@ -124,11 +124,17 @@ def xywh2xyxy(x):
     return y
 
 
-def scale_coords(img1_shape, coords, img0_shape):
+def scale_coords(img1_shape, coords, img0_shape, ratio_pad=None):
     # Rescale coords (xyxy) from img1_shape to img0_shape
-    gain = max(img1_shape) / max(img0_shape)  # gain  = old / new
-    coords[:, [0, 2]] -= (img1_shape[1] - img0_shape[1] * gain) / 2  # x padding
-    coords[:, [1, 3]] -= (img1_shape[0] - img0_shape[0] * gain) / 2  # y padding
+    if ratio_pad is None:  # not supplied, calculate
+        gain = max(img1_shape) / max(img0_shape)  # gain  = old / new
+        pad = (img1_shape[1] - img0_shape[1] * gain) / 2, (img1_shape[0] - img0_shape[0] * gain) / 2  # wh padding
+    else:
+        gain = ratio_pad[0][0]
+        pad = ratio_pad[1]
+
+    coords[:, [0, 2]] -= pad[0]  # x padding
+    coords[:, [1, 3]] -= pad[1]  # y padding
     coords[:, :4] /= gain
     clip_coords(coords, img0_shape)
     return coords