diff --git a/lantern_scripts/mask_humans.py b/lantern_scripts/mask_humans.py
new file mode 100644
index 000000000..751e632f7
--- /dev/null
+++ b/lantern_scripts/mask_humans.py
@@ -0,0 +1,68 @@
+import detectron2
+from detectron2.utils.logger import setup_logger
+setup_logger()
+
+# import some common libraries
+import numpy as np
+import os, json, cv2, random
+import argparse
+from tqdm import tqdm
+
+
+# import some common detectron2 utilities
+from detectron2 import model_zoo
+from detectron2.engine import DefaultPredictor
+from detectron2.config import get_cfg
+from detectron2.utils.visualizer import Visualizer
+from detectron2.data import MetadataCatalog, DatasetCatalog
+
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--input_dir', type=str, default='', help='directory to data')
+    parser.add_argument('--output_dir', type=str, default='')
+    parser.add_argument('--stick',type=str,default='')
+    args = parser.parse_args()
+    out = f'{args.output_dir}/mask/'
+    # out = f'{args.output_dir}/overlay'
+    if(not os.path.isdir(out)):
+        os.makedirs(out)
+    # stick = cv2.imread(args.stick)
+    imgs = os.listdir(os.path.join(args.input_dir,'ldr'))
+    # imgs = os.listdir(args.input_dir)
+    cfg = get_cfg()
+    cfg.merge_from_file(model_zoo.get_config_file("COCO-PanopticSegmentation/panoptic_fpn_R_101_3x.yaml"))
+    cfg.MODEL.WEIGHTS = model_zoo.get_checkpoint_url("COCO-PanopticSegmentation/panoptic_fpn_R_101_3x.yaml")
+    predictor = DefaultPredictor(cfg)
+    for file in tqdm(imgs):
+        path = f'{args.input_dir}/ldr/{file}'
+        img = cv2.imread(path)
+        panoptic_seg, segments_info = predictor(img)["panoptic_seg"]
+                # category_id = 0 is person which we need. the number in panoptic_seg is the corresponding id not category id
+        new_seg_info=[]
+        nimg = panoptic_seg.cpu().numpy()
+        w,h = nimg.shape
+        mask = np.ones(nimg.shape)*255
+        for seg in segments_info:
+            if seg['category_id']==0:
+                new_seg_info.append(seg)
+                mask[nimg == seg['id']] = 0
+        # v = Visualizer(img[:, :, ::-1], MetadataCatalog.get(cfg.DATASETS.TRAIN[0]), scale=1.2)
+        # out_img = v.draw_panoptic_seg_predictions(panoptic_seg.to("cpu"), new_seg_info)
+        # im = out_img.get_image()[:, :, ::-1]
+        # print(im.shape)
+        # mask = cv2.cvtColor(mask,cv2.COLOR_GRAY2BGR)
+        fmask = np.ones((w,h,3))
+        # for i in range(0,3):
+        #     fmask[:,:,i] = mask
+        fmask[:,:,:] = mask.reshape(w,h,1)
+        # print(fmask.shape,stick.shape)
+        # fmask = fmask & stick.astype('uint8')
+        # kernel = np.ones((5, 5), np.uint8)
+        # fmask = cv2.erode(fmask,kernel)
+        cv2.imwrite(f'{out}/{file}',fmask)
+        # print(out)
+        # print(file)
+        # output_path = os.path.join(out,file)
+        # cv2.imwrite(output_path,im)