Files
nerfstudio/lantern_scripts/mask_humans.py
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Python

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)