infer_simple

# Copyright (c) Facebook, Inc. and its affiliates.
# All rights reserved.
#
# This source code is licensed under the license found in the
# LICENSE file in the root directory of this source tree.
##############################################################################

"""Perform inference on a single image or all images with a certain extension
(e.g., .jpg) in a folder.
"""

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals

from collections import defaultdict
import argparse
import cv2  # NOQA (Must import before importing caffe2 due to bug in cv2)
import glob
import logging
import os
import sys
import time
os.environ['CUDA_VISIBLE_DEVICES'] = '5'


sys.path.append('/data/xiaobing.wang/xiangyu.zhu/DensePose/PoseTrack_ECCV2018/pytorch-master/build')


from caffe2.python import workspace
import _init_paths

from detectron.core.config import assert_and_infer_cfg
from detectron.core.config import cfg
from detectron.core.config import merge_cfg_from_file
from detectron.utils.io import cache_url
from detectron.utils.logging import setup_logging
from detectron.utils.timer import Timer
import detectron.core.test_engine as infer_engine
import detectron.datasets.dummy_datasets as dummy_datasets
import detectron.utils.c2 as c2_utils
import detectron.utils.vis as vis_utils

c2_utils.import_detectron_ops()

# OpenCL may be enabled by default in OpenCV3; disable it because it's not
# thread safe and causes unwanted GPU memory allocations.
cv2.ocl.setUseOpenCL(False)


def parse_args():
    parser = argparse.ArgumentParser(description='End-to-end inference')
    parser.add_argument(
        '--cfg',
        dest='cfg',
        help='cfg model file (/path/to/model_config.yaml)',
        default='../configs/DensePose_ResNet101_FPN_s1x-e2e.yaml',
        type=str
    )
    parser.add_argument(
        '--wts',
        dest='weights',
        help='weights model file (/path/to/model_weights.pkl)',
        default='../../model/DensePose_ResNet101_FPN_s1x-e2e.pkl',
        type=str
    )
    parser.add_argument(
        '--output-dir',
        dest='output_dir',
        help='directory for visualization pdfs (default: /tmp/infer_simple)',
        default='../DensePoseData/infer_out/',
        type=str
    )
    parser.add_argument(
        '--image-ext',
        dest='image_ext',
        help='image file name extension (default: jpg)',
        default='jpg',
        type=str
    )
    parser.add_argument(
        '--im_or_folder',
        dest='im_or_folder',
        help='image or folder of images',
        default='/data/xiaobing.wang/xiangyu.zhu/DensePose/PoseTrack_ECCV2018/DensePose-master/DensePoseData/demo_data/Single_person_img/',
        type=str
    )

    # if len(sys.argv) == 1:
    #     parser.print_help()
    #     sys.exit(1)
    return parser.parse_args()


def main(args):
    logger = logging.getLogger(__name__)
    merge_cfg_from_file(args.cfg)
    cfg.NUM_GPUS = 1
    args.weights = cache_url(args.weights, cfg.DOWNLOAD_CACHE)
    assert_and_infer_cfg(cache_urls=False)
    model = infer_engine.initialize_model_from_cfg(args.weights)
    dummy_coco_dataset = dummy_datasets.get_coco_dataset()

    if os.path.isdir(args.im_or_folder):
        im_list = glob.iglob(args.im_or_folder + '/*.' + args.image_ext)
    else:
        im_list = [args.im_or_folder]

    for i, im_name in enumerate(im_list):
        out_name = os.path.join(
            args.output_dir, '{}'.format(os.path.basename(im_name) + '.pdf')
        )
        logger.info('Processing {} -> {}'.format(im_name, out_name))
        im = cv2.imread(im_name)
        timers = defaultdict(Timer)
        t = time.time()
        with c2_utils.NamedCudaScope(0):
            cls_boxes, cls_segms, cls_keyps, cls_bodys = infer_engine.im_detect_all(
                model, im, None, timers=timers
            )
        logger.info('Inference time: {:.3f}s'.format(time.time() - t))
        for k, v in timers.items():
            logger.info(' | {}: {:.3f}s'.format(k, v.average_time))
        if i == 0:
            logger.info(
                ' \ Note: inference on the first image will be slower than the '
                'rest (caches and auto-tuning need to warm up)'
            )

        vis_utils.vis_one_image(
            im[:, :, ::-1],  # BGR -> RGB for visualization
            im_name,
            args.output_dir,
            cls_boxes,
            cls_segms,
            cls_keyps,
            cls_bodys,
            dataset=dummy_coco_dataset,
            box_alpha=0.3,
            show_class=True,
            thresh=0.7,
            kp_thresh=2
        )


if __name__ == '__main__':
    workspace.GlobalInit(['caffe2', '--caffe2_log_level=0'])
    setup_logging(__name__)
    args = parse_args()
    main(args)