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| # Copyright (c) 2023, NVIDIA Corporation & Affiliates. All rights reserved. | |
| # | |
| # This work is made available under the Nvidia Source Code License-NC. | |
| # To view a copy of this license, visit | |
| # https://github.com/NVlabs/prismer/blob/main/LICENSE | |
| import torch | |
| import os | |
| try: | |
| import ruamel_yaml as yaml | |
| except ModuleNotFoundError: | |
| import ruamel.yaml as yaml | |
| from experts.model_bank import load_expert_model | |
| from experts.depth.generate_dataset import Dataset | |
| import PIL.Image as Image | |
| from accelerate import Accelerator | |
| from tqdm import tqdm | |
| model, transform = load_expert_model(task='depth') | |
| accelerator = Accelerator(mixed_precision='fp16') | |
| config = yaml.load(open('configs/experts.yaml', 'r'), Loader=yaml.Loader) | |
| data_path = config['data_path'] | |
| save_path = os.path.join(config['save_path'], 'depth') | |
| batch_size = 64 | |
| dataset = Dataset(data_path, transform) | |
| data_loader = torch.utils.data.DataLoader( | |
| dataset=dataset, | |
| batch_size=batch_size, | |
| shuffle=False, | |
| num_workers=4, | |
| pin_memory=True | |
| ) | |
| model, data_loader = accelerator.prepare(model, data_loader) | |
| with torch.no_grad(): | |
| for i, (test_data, img_path, img_size) in enumerate(tqdm(data_loader)): | |
| test_pred = model(test_data) | |
| for k in range(len(test_pred)): | |
| img_path_split = img_path[k].split('/') | |
| ps = img_path[k].split('.')[-1] | |
| im_save_path = os.path.join(save_path, img_path_split[-3], img_path_split[-2]) | |
| os.makedirs(im_save_path, exist_ok=True) | |
| im_size = img_size[0][k].item(), img_size[1][k].item() | |
| depth = test_pred[k] | |
| depth = (depth - depth.min()) / (depth.max() - depth.min()) | |
| depth = torch.nn.functional.interpolate(depth.unsqueeze(0).unsqueeze(1), size=(im_size[1], im_size[0]), mode='bilinear', align_corners=True) | |
| depth_im = Image.fromarray(255 * depth[0, 0].detach().cpu().numpy()).convert('L') | |
| depth_im.save(os.path.join(im_save_path, img_path_split[-1].replace(f'.{ps}', '.png'))) | |