diff --git a/core/imagelib/warp.py b/core/imagelib/warp.py
index ac4f324..559c2e8 100644
--- a/core/imagelib/warp.py
+++ b/core/imagelib/warp.py
@@ -2,7 +2,7 @@ import numpy as np
 import cv2
 from core import randomex
 
-def gen_warp_params (w, flip, rotation_range=[-10,10], scale_range=[-0.5, 0.5], tx_range=[-0.05, 0.05], ty_range=[-0.05, 0.05], rnd_state=None  ):
+def gen_warp_params (w, flip, rotation_range=[-2,2], scale_range=[-0.5, 0.5], tx_range=[-0.05, 0.05], ty_range=[-0.05, 0.05], rnd_state=None  ):
     if rnd_state is None:
         rnd_state = np.random