is it a bug when get gt_cx or gt_cy less than zero

[gjpicker]

ground_truth's cx cy ,some time less than zero

do some change to return with bbox info in siamfc/dataset.py "origin:"--->"add bbox return:"

def __getitem__(self,index):
     return exemplar_img, instance_img, regression_target, conf_target.astype(np.int64)

--->

def __getitem__(self,index):
     return exemplar_img, instance_img, regression_target, conf_target.astype(np.int64),\
gt_cx,gt_cy ,gt_w, gt_h

then debug bbox detail by print twice

gt_cx,gt_cy ,gt_w, gt_h :: tensor([8.], dtype=torch.float64) tensor([-2.], dtype=torch.float64) \
tensor([83.1059], dtype=torch.float64) tensor([49.2817], dtype=torch.float64)

gt_cx,gt_cy ,gt_w, gt_h :: tensor([6.], dtype=torch.float64) tensor([7.5000], dtype=torch.float64)\
 tensor([76.8523], dtype=torch.float64) tensor([43.6093], dtype=torch.float64)

the error's occured position maybe at RandomCrop ,where "gt_cx = cx_o - cx" at line 136 ,line 137
problem in here

[HelloRicky123]

It is the shift to the center.