Fix numba warning

mmdet3d/datasets/pipelines/data_augment_utils.py

+import warnings
+
 import numba
 import numpy as np
+from numba.errors import NumbaPerformanceWarning
 
 from mmdet3d.core.bbox import box_np_ops
 
+warnings.filterwarnings("ignore", category=NumbaPerformanceWarning)
+
 
 @numba.njit
 def _rotation_box2d_jit_(corners, angle, rot_mat_T):

mmdet3d/datasets/pipelines/dbsampler.py

@@ -433,8 +433,8 @@ class MMDataBaseSampler(DataBaseSampler):
             elif blending_op == 'box':
                 obj_mask = cv2.blur(obj_mask.astype(np.float32), (3, 3))
             paste_mask = 1 - obj_mask
-            img[y1:y1 + h,
-                x1:x1 + w] = (img[y1:y1 + h, x1:x1 + w].astype(np.float32) *
+            img[y1:y1 + h, x1:x1 +
+                w] = (img[y1:y1 + h, x1:x1 + w].astype(np.float32) *
                       paste_mask[..., None]).astype(np.uint8)
             img[y1:y1 + h, x1:x1 + w] += (obj_img.astype(np.float32) *
                                           obj_mask[..., None]).astype(np.uint8)