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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 math | |
| import numpy as np | |
| from pycocotools.coco import COCO | |
| from pycocoevalcap.eval import COCOEvalCap | |
| def cosine_lr_schedule(optimizer, epoch, max_epoch, init_lr, min_lr): | |
| """Decay the learning rate""" | |
| lr = (init_lr - min_lr) * 0.5 * (1. + math.cos(math.pi * epoch / max_epoch)) + min_lr | |
| for param_group in optimizer.param_groups: | |
| param_group['lr'] = lr | |
| def warmup_lr_schedule(optimizer, step, max_step, init_lr, max_lr): | |
| """Warmup the learning rate""" | |
| lr = min(max_lr, init_lr + (max_lr - init_lr) * step / max_step) | |
| for param_group in optimizer.param_groups: | |
| param_group['lr'] = lr | |
| def step_lr_schedule(optimizer, epoch, init_lr, min_lr, decay_rate): | |
| """Decay the learning rate""" | |
| lr = max(min_lr, init_lr * (decay_rate ** epoch)) | |
| for param_group in optimizer.param_groups: | |
| param_group['lr'] = lr | |
| def coco_caption_eval(coco_gt_root, results_file): | |
| coco = COCO(coco_gt_root) | |
| coco_result = coco.loadRes(results_file) | |
| coco_eval = COCOEvalCap(coco, coco_result) | |
| coco_eval.evaluate() | |
| for metric, score in coco_eval.eval.items(): | |
| print(f'{metric}: {score:.3f}') | |
| return coco_eval | |
| def create_ade20k_label_colormap(): | |
| """Creates a label colormap used in ADE20K segmentation benchmark. | |
| Returns: | |
| A colormap for visualizing segmentation results. | |
| """ | |
| return np.asarray([ | |
| [0, 0, 0], | |
| [120, 120, 120], | |
| [180, 120, 120], | |
| [6, 230, 230], | |
| [80, 50, 50], | |
| [4, 200, 3], | |
| [120, 120, 80], | |
| [140, 140, 140], | |
| [204, 5, 255], | |
| [230, 230, 230], | |
| [4, 250, 7], | |
| [224, 5, 255], | |
| [235, 255, 7], | |
| [150, 5, 61], | |
| [120, 120, 70], | |
| [8, 255, 51], | |
| [255, 6, 82], | |
| [143, 255, 140], | |
| [204, 255, 4], | |
| [255, 51, 7], | |
| [204, 70, 3], | |
| [0, 102, 200], | |
| [61, 230, 250], | |
| [255, 6, 51], | |
| [11, 102, 255], | |
| [255, 7, 71], | |
| [255, 9, 224], | |
| [9, 7, 230], | |
| [220, 220, 220], | |
| [255, 9, 92], | |
| [112, 9, 255], | |
| [8, 255, 214], | |
| [7, 255, 224], | |
| [255, 184, 6], | |
| [10, 255, 71], | |
| [255, 41, 10], | |
| [7, 255, 255], | |
| [224, 255, 8], | |
| [102, 8, 255], | |
| [255, 61, 6], | |
| [255, 194, 7], | |
| [255, 122, 8], | |
| [0, 255, 20], | |
| [255, 8, 41], | |
| [255, 5, 153], | |
| [6, 51, 255], | |
| [235, 12, 255], | |
| [160, 150, 20], | |
| [0, 163, 255], | |
| [140, 140, 140], | |
| [250, 10, 15], | |
| [20, 255, 0], | |
| [31, 255, 0], | |
| [255, 31, 0], | |
| [255, 224, 0], | |
| [153, 255, 0], | |
| [0, 0, 255], | |
| [255, 71, 0], | |
| [0, 235, 255], | |
| [0, 173, 255], | |
| [31, 0, 255], | |
| [11, 200, 200], | |
| [255, 82, 0], | |
| [0, 255, 245], | |
| [0, 61, 255], | |
| [0, 255, 112], | |
| [0, 255, 133], | |
| [255, 0, 0], | |
| [255, 163, 0], | |
| [255, 102, 0], | |
| [194, 255, 0], | |
| [0, 143, 255], | |
| [51, 255, 0], | |
| [0, 82, 255], | |
| [0, 255, 41], | |
| [0, 255, 173], | |
| [10, 0, 255], | |
| [173, 255, 0], | |
| [0, 255, 153], | |
| [255, 92, 0], | |
| [255, 0, 255], | |
| [255, 0, 245], | |
| [255, 0, 102], | |
| [255, 173, 0], | |
| [255, 0, 20], | |
| [255, 184, 184], | |
| [0, 31, 255], | |
| [0, 255, 61], | |
| [0, 71, 255], | |
| [255, 0, 204], | |
| [0, 255, 194], | |
| [0, 255, 82], | |
| [0, 10, 255], | |
| [0, 112, 255], | |
| [51, 0, 255], | |
| [0, 194, 255], | |
| [0, 122, 255], | |
| [0, 255, 163], | |
| [255, 153, 0], | |
| [0, 255, 10], | |
| [255, 112, 0], | |
| [143, 255, 0], | |
| [82, 0, 255], | |
| [163, 255, 0], | |
| [255, 235, 0], | |
| [8, 184, 170], | |
| [133, 0, 255], | |
| [0, 255, 92], | |
| [184, 0, 255], | |
| [255, 0, 31], | |
| [0, 184, 255], | |
| [0, 214, 255], | |
| [255, 0, 112], | |
| [92, 255, 0], | |
| [0, 224, 255], | |
| [112, 224, 255], | |
| [70, 184, 160], | |
| [163, 0, 255], | |
| [153, 0, 255], | |
| [71, 255, 0], | |
| [255, 0, 163], | |
| [255, 204, 0], | |
| [255, 0, 143], | |
| [0, 255, 235], | |
| [133, 255, 0], | |
| [255, 0, 235], | |
| [245, 0, 255], | |
| [255, 0, 122], | |
| [255, 245, 0], | |
| [10, 190, 212], | |
| [214, 255, 0], | |
| [0, 204, 255], | |
| [20, 0, 255], | |
| [255, 255, 0], | |
| [0, 153, 255], | |
| [0, 41, 255], | |
| [0, 255, 204], | |
| [41, 0, 255], | |
| [41, 255, 0], | |
| [173, 0, 255], | |
| [0, 245, 255], | |
| [71, 0, 255], | |
| [122, 0, 255], | |
| [0, 255, 184], | |
| [0, 92, 255], | |
| [184, 255, 0], | |
| [0, 133, 255], | |
| [255, 214, 0], | |
| [25, 194, 194], | |
| [102, 255, 0], | |
| [92, 0, 255], | |
| ]) | |