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| # YOLOv5 🚀 by Ultralytics, GPL-3.0 license | |
| """ | |
| venv requirements: | |
| pip install torch==1.11.0+cu113 torchvision==0.12.0+cu113 torchaudio==0.11.0 --extra-index-url https://download.pytorch.org/whl/cu113 | |
| pip3 install cython | |
| pip3 install opencv-python | |
| Train a YOLOv5 model on a custom dataset. | |
| Models and datasets download automatically from the latest YOLOv5 release. | |
| Models: https://github.com/ultralytics/yolov5/tree/master/models | |
| Datasets: https://github.com/ultralytics/yolov5/tree/master/data | |
| Tutorial: https://github.com/ultralytics/yolov5/wiki/Train-Custom-Data | |
| Usage: | |
| $ python path/to/train.py --data coco128.yaml --weights yolov5s.pt --img 640 # from pretrained (RECOMMENDED) | |
| $ python path/to/train.py --data coco128.yaml --weights '' --cfg_model yolov5s.yaml --img 640 # from scratch | |
| """ | |
| import os,argparse, math, random, sys, time, yaml, wandb, inspect | |
| from dataclasses import dataclass, field | |
| from copy import deepcopy | |
| from datetime import datetime, timedelta | |
| from pathlib import Path | |
| import numpy as np | |
| import torch | |
| import torch.distributed as dist | |
| import torch.nn as nn | |
| from torch.cuda import amp | |
| from torch.nn.parallel import DistributedDataParallel as DDP | |
| from torch.optim import SGD, Adam, AdamW, lr_scheduler | |
| from tqdm.auto import tqdm | |
| import collections | |
| import collections.abc | |
| FILE = Path(__file__).resolve() | |
| ROOT = FILE.parents[0] # YOLOv5 root directory | |
| if str(ROOT) not in sys.path: | |
| sys.path.append(str(ROOT)) # add ROOT to PATH | |
| ROOT = Path(os.path.relpath(ROOT, Path.cwd())) # relative | |
| import val # for end-of-epoch mAP | |
| from models.experimental import attempt_load | |
| from models.yolo import Model | |
| from utils.autoanchor import check_anchors | |
| from utils.autobatch import check_train_batch_size | |
| from utils.callbacks import Callbacks | |
| from utils.datasets import create_dataloader | |
| from utils.downloads import attempt_download | |
| from utils.general import (LOGGER, check_dataset, check_file, check_git_status, check_img_size, check_requirements, | |
| check_suffix, check_yaml, colorstr, get_latest_run, increment_path, init_seeds, | |
| intersect_dicts, is_ascii, labels_to_class_weights, labels_to_image_weights, methods, | |
| one_cycle, print_args, print_mutation, strip_optimizer) | |
| from utils.loggers import Loggers | |
| from utils.loggers.wandb.wandb_utils import check_wandb_resume | |
| from utils.loss import ComputeLoss | |
| from utils.metrics import fitness | |
| from utils.plots import plot_evolve, plot_labels | |
| from utils.torch_utils import EarlyStopping, ModelEMA, de_parallel, select_device, torch_distributed_zero_first | |
| LOCAL_RANK = int(os.getenv('LOCAL_RANK', -1)) # https://pytorch.org/docs/stable/elastic/run.html | |
| RANK = int(os.getenv('RANK', -1)) | |
| WORLD_SIZE = int(os.getenv('WORLD_SIZE', 1)) | |
| currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe()))) | |
| parentdir = os.path.dirname(currentdir) | |
| sys.path.append(parentdir) | |
| from machine.general_utils import get_datetime, load_cfg, get_cfg_from_full_path | |
| def train(hyp, opt, device, callbacks): # hyp is path/to/hyp.yaml or hyp dictionary | |
| save_dir, epochs, batch_size, weights, single_cls, evolve, data, cfg_model, resume, noval, nosave, workers, freeze = \ | |
| Path(opt.save_dir), opt.epochs, opt.batch_size, opt.weights, opt.single_cls, opt.evolve, opt.data, opt.cfg_model, \ | |
| opt.resume, opt.noval, opt.nosave, opt.workers, opt.freeze | |
| callbacks.run('on_pretrain_routine_start') | |
| # Directories | |
| w = save_dir / 'weights' # weights dir | |
| (w.parent if evolve else w).mkdir(parents=True, exist_ok=True) # make dir | |
| last, best = w / 'last.pt', w / 'best.pt' | |
| # Hyperparameters | |
| if isinstance(hyp, str): | |
| with open(hyp, errors='ignore') as f: | |
| hyp = yaml.safe_load(f) # load hyps dict | |
| LOGGER.info(colorstr('hyperparameters: ') + ', '.join(f'{k}={v}' for k, v in hyp.items())) | |
| # Save run settings | |
| if not evolve: | |
| with open(save_dir / 'hyp.yaml', 'w') as f: | |
| yaml.safe_dump(hyp, f, sort_keys=False) | |
| with open(save_dir / 'opt.yaml', 'w') as f: | |
| yaml.safe_dump(vars(opt), f, sort_keys=False) | |
| # Loggers | |
| data_dict = None | |
| if RANK in [-1, 0]: | |
| loggers = Loggers(save_dir, weights, opt, hyp, LOGGER) # loggers instance | |
| if loggers.wandb: | |
| data_dict = loggers.wandb.data_dict | |
| if resume: | |
| weights, epochs, hyp, batch_size = opt.weights, opt.epochs, opt.hyp, opt.batch_size | |
| # Register actions | |
| for k in methods(loggers): | |
| callbacks.register_action(k, callback=getattr(loggers, k)) | |
| # Config | |
| plots = not evolve and not opt.noplots # create plots | |
| cuda = device.type != 'cpu' | |
| init_seeds(1 + RANK) | |
| with torch_distributed_zero_first(LOCAL_RANK): | |
| data_dict = data_dict or check_dataset(data) # check if None | |
| train_path, val_path = data_dict['train'], data_dict['val'] | |
| nc = 1 if single_cls else int(data_dict['nc']) # number of classes | |
| names = ['item'] if single_cls and len(data_dict['names']) != 1 else data_dict['names'] # class names | |
| assert len(names) == nc, f'{len(names)} names found for nc={nc} dataset in {data}' # check | |
| is_coco = isinstance(val_path, str) and val_path.endswith('coco/val2017.txt') # COCO dataset | |
| # Model | |
| check_suffix(weights, '.pt') # check weights | |
| pretrained = weights.endswith('.pt') | |
| if pretrained: | |
| with torch_distributed_zero_first(LOCAL_RANK): | |
| weights = attempt_download(weights) # download if not found locally | |
| ckpt = torch.load(weights, map_location='cpu') # load checkpoint to CPU to avoid CUDA memory leak | |
| model = Model(cfg_model or ckpt['model'].yaml, ch=3, nc=nc, anchors=hyp.get('anchors')).to(device) # create | |
| exclude = ['anchor'] if (cfg_model or hyp.get('anchors')) and not resume else [] # exclude keys | |
| csd = ckpt['model'].float().state_dict() # checkpoint state_dict as FP32 | |
| csd = intersect_dicts(csd, model.state_dict(), exclude=exclude) # intersect | |
| model.load_state_dict(csd, strict=False) # load | |
| LOGGER.info(f'Transferred {len(csd)}/{len(model.state_dict())} items from {weights}') # report | |
| else: | |
| model = Model(cfg_model, ch=3, nc=nc, anchors=hyp.get('anchors')).to(device) # create | |
| # Freeze | |
| freeze = [f'model.{x}.' for x in (freeze if len(freeze) > 1 else range(freeze[0]))] # layers to freeze | |
| for k, v in model.named_parameters(): | |
| v.requires_grad = True # train all layers | |
| if any(x in k for x in freeze): | |
| LOGGER.info(f'freezing {k}') | |
| v.requires_grad = False | |
| # Image size | |
| gs = max(int(model.stride.max()), 32) # grid size (max stride) | |
| imgsz = check_img_size(opt.imgsz, gs, floor=gs * 2) # verify imgsz is gs-multiple | |
| # Batch size | |
| if RANK == -1 and batch_size == -1: # single-GPU only, estimate best batch size | |
| batch_size = check_train_batch_size(model, imgsz) | |
| loggers.on_params_update({"batch_size": batch_size}) | |
| # Optimizer | |
| nbs = 64 # nominal batch size | |
| accumulate = max(round(nbs / batch_size), 1) # accumulate loss before optimizing | |
| hyp['weight_decay'] *= batch_size * accumulate / nbs # scale weight_decay | |
| LOGGER.info(f"Scaled weight_decay = {hyp['weight_decay']}") | |
| g = [], [], [] # optimizer parameter groups | |
| bn = tuple(v for k, v in nn.__dict__.items() if 'Norm' in k) # normalization layers, i.e. BatchNorm2d() | |
| for v in model.modules(): | |
| if hasattr(v, 'bias') and isinstance(v.bias, nn.Parameter): # bias | |
| g[2].append(v.bias) | |
| if isinstance(v, bn): # weight (no decay) | |
| g[1].append(v.weight) | |
| elif hasattr(v, 'weight') and isinstance(v.weight, nn.Parameter): # weight (with decay) | |
| g[0].append(v.weight) | |
| if opt.optimizer == 'Adam': | |
| optimizer = Adam(g[2], lr=hyp['lr0'], betas=(hyp['momentum'], 0.999)) # adjust beta1 to momentum | |
| elif opt.optimizer == 'AdamW': | |
| optimizer = AdamW(g[2], lr=hyp['lr0'], betas=(hyp['momentum'], 0.999)) # adjust beta1 to momentum | |
| else: | |
| optimizer = SGD(g[2], lr=hyp['lr0'], momentum=hyp['momentum'], nesterov=True) | |
| optimizer.add_param_group({'params': g[0], 'weight_decay': hyp['weight_decay']}) # add g0 with weight_decay | |
| optimizer.add_param_group({'params': g[1]}) # add g1 (BatchNorm2d weights) | |
| LOGGER.info(f"{colorstr('optimizer:')} {type(optimizer).__name__} with parameter groups " | |
| f"{len(g[1])} weight (no decay), {len(g[0])} weight, {len(g[2])} bias") | |
| del g | |
| # Scheduler | |
| if opt.cos_lr: | |
| lf = one_cycle(1, hyp['lrf'], epochs) # cosine 1->hyp['lrf'] | |
| else: | |
| lf = lambda x: (1 - x / epochs) * (1.0 - hyp['lrf']) + hyp['lrf'] # linear | |
| scheduler = lr_scheduler.LambdaLR(optimizer, lr_lambda=lf) # plot_lr_scheduler(optimizer, scheduler, epochs) | |
| # EMA | |
| ema = ModelEMA(model) if RANK in [-1, 0] else None | |
| # Resume | |
| start_epoch, best_fitness = 0, 0.0 | |
| if pretrained: | |
| # Optimizer | |
| if ckpt['optimizer'] is not None: | |
| optimizer.load_state_dict(ckpt['optimizer']) | |
| best_fitness = ckpt['best_fitness'] | |
| # EMA | |
| if ema and ckpt.get('ema'): | |
| ema.ema.load_state_dict(ckpt['ema'].float().state_dict()) | |
| ema.updates = ckpt['updates'] | |
| # Epochs | |
| start_epoch = ckpt['epoch'] + 1 | |
| if resume: | |
| assert start_epoch > 0, f'{weights} training to {epochs} epochs is finished, nothing to resume.' | |
| if epochs < start_epoch: | |
| LOGGER.info(f"{weights} has been trained for {ckpt['epoch']} epochs. Fine-tuning for {epochs} more epochs.") | |
| epochs += ckpt['epoch'] # finetune additional epochs | |
| del ckpt, csd | |
| # DP mode | |
| if cuda and RANK == -1 and torch.cuda.device_count() > 1: | |
| LOGGER.warning('WARNING: DP not recommended, use torch.distributed.run for best DDP Multi-GPU results.\n' | |
| 'See Multi-GPU Tutorial at https://github.com/ultralytics/yolov5/issues/475 to get started.') | |
| model = torch.nn.DataParallel(model) | |
| # SyncBatchNorm | |
| if opt.sync_bn and cuda and RANK != -1: | |
| model = torch.nn.SyncBatchNorm.convert_sync_batchnorm(model).to(device) | |
| LOGGER.info('Using SyncBatchNorm()') | |
| # Trainloader | |
| train_loader, dataset = create_dataloader(train_path, | |
| imgsz, | |
| batch_size // WORLD_SIZE, | |
| gs, | |
| single_cls, | |
| hyp=hyp, | |
| augment=True, | |
| cache=None if opt.cache == 'val' else opt.cache, | |
| rect=opt.rect, | |
| rank=LOCAL_RANK, | |
| workers=opt.workers, | |
| image_weights=opt.image_weights, | |
| quad=opt.quad, | |
| prefix=colorstr('train: '), | |
| shuffle=True) | |
| mlc = int(np.concatenate(dataset.labels, 0)[:, 0].max()) # max label class | |
| nb = len(train_loader) # number of batches | |
| assert mlc < nc, f'Label class {mlc} exceeds nc={nc} in {data}. Possible class labels are 0-{nc - 1}' | |
| # Process 0 | |
| if RANK in [-1, 0]: | |
| val_loader = create_dataloader(val_path, | |
| imgsz, | |
| batch_size // WORLD_SIZE * 2, | |
| gs, | |
| single_cls, | |
| hyp=hyp, | |
| cache=None if noval else opt.cache, | |
| rect=True, | |
| rank=-1, | |
| workers=workers * 2, | |
| pad=0.5, | |
| prefix=colorstr('val: '))[0] | |
| if not resume: | |
| labels = np.concatenate(dataset.labels, 0) | |
| # c = torch.tensor(labels[:, 0]) # classes | |
| # cf = torch.bincount(c.long(), minlength=nc) + 1. # frequency | |
| # model._initialize_biases(cf.to(device)) | |
| if plots: | |
| plot_labels(labels, names, save_dir) | |
| # Anchors | |
| if not opt.noautoanchor: | |
| check_anchors(dataset, model=model, thr=hyp['anchor_t'], imgsz=imgsz) | |
| model.half().float() # pre-reduce anchor precision | |
| callbacks.run('on_pretrain_routine_end') | |
| # DDP mode | |
| if cuda and RANK != -1: | |
| model = DDP(model, device_ids=[LOCAL_RANK], output_device=LOCAL_RANK) | |
| # Model attributes | |
| nl = de_parallel(model).model[-1].nl # number of detection layers (to scale hyps) | |
| hyp['box'] *= 3 / nl # scale to layers | |
| hyp['cls'] *= nc / 80 * 3 / nl # scale to classes and layers | |
| hyp['obj'] *= (imgsz / 640) ** 2 * 3 / nl # scale to image size and layers | |
| hyp['label_smoothing'] = opt.label_smoothing | |
| model.nc = nc # attach number of classes to model | |
| model.hyp = hyp # attach hyperparameters to model | |
| model.class_weights = labels_to_class_weights(dataset.labels, nc).to(device) * nc # attach class weights | |
| model.names = names | |
| # Start training | |
| t0 = time.time() | |
| nw = max(round(hyp['warmup_epochs'] * nb), 100) # number of warmup iterations, max(3 epochs, 100 iterations) | |
| # nw = min(nw, (epochs - start_epoch) / 2 * nb) # limit warmup to < 1/2 of training | |
| last_opt_step = -1 | |
| maps = np.zeros(nc) # mAP per class | |
| results = (0, 0, 0, 0, 0, 0, 0) # P, R, [email protected], [email protected], val_loss(box, obj, cls) | |
| scheduler.last_epoch = start_epoch - 1 # do not move | |
| scaler = amp.GradScaler(enabled=cuda) | |
| stopper = EarlyStopping(patience=opt.patience) | |
| compute_loss = ComputeLoss(model) # init loss class | |
| callbacks.run('on_train_start') | |
| LOGGER.info(f'Image sizes {imgsz} train, {imgsz} val\n' | |
| f'Using {train_loader.num_workers * WORLD_SIZE} dataloader workers\n' | |
| f"Logging results to {colorstr('bold', save_dir)}\n" | |
| f'Starting training for {epochs} epochs...') | |
| for epoch in range(start_epoch, epochs): # epoch ------------------------------------------------------------------ | |
| callbacks.run('on_train_epoch_start') | |
| model.train() | |
| # Update image weights (optional, single-GPU only) | |
| if opt.image_weights: | |
| cw = model.class_weights.cpu().numpy() * (1 - maps) ** 2 / nc # class weights | |
| iw = labels_to_image_weights(dataset.labels, nc=nc, class_weights=cw) # image weights | |
| dataset.indices = random.choices(range(dataset.n), weights=iw, k=dataset.n) # rand weighted idx | |
| # Update mosaic border (optional) | |
| # b = int(random.uniform(0.25 * imgsz, 0.75 * imgsz + gs) // gs * gs) | |
| # dataset.mosaic_border = [b - imgsz, -b] # height, width borders | |
| mloss = torch.zeros(3, device=device) # mean losses | |
| if RANK != -1: | |
| train_loader.sampler.set_epoch(epoch) | |
| pbar = enumerate(train_loader) | |
| LOGGER.info(('\n' + '%10s' * 7) % ('Epoch', 'gpu_mem', 'box', 'obj', 'cls', 'labels', 'img_size')) | |
| if RANK in (-1, 0): | |
| pbar = tqdm(pbar, total=nb, bar_format=' {l_bar}{bar:10}{r_bar}{bar:-10b}') # progress bar FIXED TO ALIGN WITH OTHER BAR :) | |
| optimizer.zero_grad() | |
| for i, (imgs, targets, paths, _) in pbar: # batch ------------------------------------------------------------- | |
| callbacks.run('on_train_batch_start') | |
| ni = i + nb * epoch # number integrated batches (since train start) | |
| imgs = imgs.to(device, non_blocking=True).float() / 255 # uint8 to float32, 0-255 to 0.0-1.0 | |
| # Warmup | |
| if ni <= nw: | |
| xi = [0, nw] # x interp | |
| # compute_loss.gr = np.interp(ni, xi, [0.0, 1.0]) # iou loss ratio (obj_loss = 1.0 or iou) | |
| accumulate = max(1, np.interp(ni, xi, [1, nbs / batch_size]).round()) | |
| for j, x in enumerate(optimizer.param_groups): | |
| # bias lr falls from 0.1 to lr0, all other lrs rise from 0.0 to lr0 | |
| x['lr'] = np.interp(ni, xi, [hyp['warmup_bias_lr'] if j == 2 else 0.0, x['initial_lr'] * lf(epoch)]) | |
| if 'momentum' in x: | |
| x['momentum'] = np.interp(ni, xi, [hyp['warmup_momentum'], hyp['momentum']]) | |
| # Multi-scale | |
| if opt.multi_scale: | |
| sz = random.randrange(imgsz * 0.5, imgsz * 1.5 + gs) // gs * gs # size | |
| sf = sz / max(imgs.shape[2:]) # scale factor | |
| if sf != 1: | |
| ns = [math.ceil(x * sf / gs) * gs for x in imgs.shape[2:]] # new shape (stretched to gs-multiple) | |
| imgs = nn.functional.interpolate(imgs, size=ns, mode='bilinear', align_corners=False) | |
| # Forward | |
| with amp.autocast(enabled=cuda): | |
| pred = model(imgs) # forward | |
| loss, loss_items = compute_loss(pred, targets.to(device)) # loss scaled by batch_size | |
| if RANK != -1: | |
| loss *= WORLD_SIZE # gradient averaged between devices in DDP mode | |
| if opt.quad: | |
| loss *= 4. | |
| # Backward | |
| scaler.scale(loss).backward() | |
| # Optimize | |
| if ni - last_opt_step >= accumulate: | |
| scaler.step(optimizer) # optimizer.step | |
| scaler.update() | |
| optimizer.zero_grad() | |
| if ema: | |
| ema.update(model) | |
| last_opt_step = ni | |
| # Log | |
| if RANK in (-1, 0): | |
| mloss = (mloss * i + loss_items) / (i + 1) # update mean losses | |
| mem = f'{torch.cuda.memory_reserved() / 1E9 if torch.cuda.is_available() else 0:.3g}G' # (GB) | |
| pbar.set_description(('%10s' * 2 + '%10.4g' * 5) % | |
| (f'{epoch}/{epochs - 1}', mem, *mloss, targets.shape[0], imgs.shape[-1])) | |
| callbacks.run('on_train_batch_end', ni, model, imgs, targets, paths, plots) | |
| if callbacks.stop_training: | |
| return | |
| # end batch ------------------------------------------------------------------------------------------------ | |
| # Scheduler | |
| lr = [x['lr'] for x in optimizer.param_groups] # for loggers | |
| scheduler.step() | |
| if RANK in (-1, 0): | |
| # mAP | |
| callbacks.run('on_train_epoch_end', epoch=epoch) | |
| ema.update_attr(model, include=['yaml', 'nc', 'hyp', 'names', 'stride', 'class_weights']) | |
| final_epoch = (epoch + 1 == epochs) or stopper.possible_stop | |
| if not noval or final_epoch: # Calculate mAP | |
| results, maps, _ = val.run(data_dict, | |
| batch_size=batch_size // WORLD_SIZE * 2, | |
| imgsz=imgsz, | |
| model=ema.ema, | |
| single_cls=single_cls, | |
| dataloader=val_loader, | |
| save_dir=save_dir, | |
| plots=False, | |
| callbacks=callbacks, | |
| compute_loss=compute_loss) | |
| # Update best mAP | |
| fi = fitness(np.array(results).reshape(1, -1)) # weighted combination of [P, R, [email protected], [email protected]] | |
| if fi > best_fitness: | |
| best_fitness = fi | |
| log_vals = list(mloss) + list(results) + lr | |
| callbacks.run('on_fit_epoch_end', log_vals, epoch, best_fitness, fi) | |
| # Save model | |
| if (not nosave) or (final_epoch and not evolve): # if save | |
| ckpt = { | |
| 'epoch': epoch, | |
| 'best_fitness': best_fitness, | |
| 'model': deepcopy(de_parallel(model)).half(), | |
| 'ema': deepcopy(ema.ema).half(), | |
| 'updates': ema.updates, | |
| 'optimizer': optimizer.state_dict(), | |
| 'wandb_id': loggers.wandb.wandb_run.id if loggers.wandb else None, | |
| 'date': datetime.now().isoformat()} | |
| # Save last, best and delete | |
| torch.save(ckpt, last) | |
| if best_fitness == fi: | |
| torch.save(ckpt, best) | |
| if (epoch > 0) and (opt.save_period > 0) and (epoch % opt.save_period == 0): | |
| torch.save(ckpt, w / f'epoch{epoch}.pt') | |
| del ckpt | |
| callbacks.run('on_model_save', last, epoch, final_epoch, best_fitness, fi) | |
| # Stop Single-GPU | |
| if RANK == -1 and stopper(epoch=epoch, fitness=fi): | |
| break | |
| # Stop DDP TODO: known issues shttps://github.com/ultralytics/yolov5/pull/4576 | |
| # stop = stopper(epoch=epoch, fitness=fi) | |
| # if RANK == 0: | |
| # dist.broadcast_object_list([stop], 0) # broadcast 'stop' to all ranks | |
| # Stop DPP | |
| # with torch_distributed_zero_first(RANK): | |
| # if stop: | |
| # break # must break all DDP ranks | |
| # end epoch ---------------------------------------------------------------------------------------------------- | |
| # end training ----------------------------------------------------------------------------------------------------- | |
| if RANK in (-1, 0): | |
| LOGGER.info(f'\n{epoch - start_epoch + 1} epochs completed in {(time.time() - t0) / 3600:.3f} hours.') | |
| for f in last, best: | |
| if f.exists(): | |
| strip_optimizer(f) # strip optimizers | |
| if f is best: | |
| LOGGER.info(f'\nValidating {f}...') | |
| results, _, _ = val.run( | |
| data_dict, | |
| batch_size=batch_size // WORLD_SIZE * 2, | |
| imgsz=imgsz, | |
| model=attempt_load(f, device).half(), | |
| iou_thres=0.65 if is_coco else 0.60, # best pycocotools results at 0.65 | |
| single_cls=single_cls, | |
| dataloader=val_loader, | |
| save_dir=save_dir, | |
| save_json=is_coco, | |
| verbose=True, | |
| plots=plots, | |
| callbacks=callbacks, | |
| compute_loss=compute_loss) # val best model with plots | |
| if is_coco: | |
| callbacks.run('on_fit_epoch_end', list(mloss) + list(results) + lr, epoch, best_fitness, fi) | |
| callbacks.run('on_train_end', last, best, plots, epoch, results) | |
| LOGGER.info(f"Results saved to {colorstr('bold', save_dir)}") | |
| torch.cuda.empty_cache() | |
| return results | |
| class TrainOptions: | |
| ''' | |
| Default training values | |
| Increase or decrease batch_size, n_gpu, n_workers according to machine specs | |
| ''' | |
| ''' | |
| python /home/brlab/Dropbox/LM2_Env/YOLOv5/yolov5/train.py | |
| --data /home/brlab/Dropbox/LM2_Env/YOLOv5/datasets/PLANT_Botany_Small/PLANT_Botany_Small.yaml | |
| --project PLANT_Botany | |
| --name Small_Adoxaceae | |
| --weights yolov5x6.pt | |
| --img 1280 | |
| --batch 14 | |
| --epochs 300 | |
| --cache | |
| ''' | |
| # Parameters | |
| data: str = '' #', type=str, default=ROOT / 'data/coco128.yaml', help='dataset.yaml path') | |
| project: str = 'runs/train' #', default=ROOT / 'runs/train', help='save to project/name') | |
| name: str = 'exp' #', default='exp', help='save to project/name') | |
| weights: str = 'yolov5x6.pt' #', type=str, default=ROOT / , help='initial weights path') | |
| optimizer: str = 'SGD' #', type=str, choices=['SGD', 'Adam', 'AdamW'], default='SGD', help='optimizer') | |
| epochs: int = 300 #', type=int, default=300) | |
| batch_size: int = 2 # | |
| patience: int = 100 #', type=int, default=100, help='EarlyStopping patience (epochs without improvement)') | |
| save_period: int = 10 #', type=int, default=-1, help='Save checkpoint every x epochs (disabled if < 1)') | |
| imgsz: int = 1024 #', '--img', '--img-size', type=int, default=640, help='train, val image size (pixels)') | |
| workers: int = 8 #', type=int, default=8, help='max dataloader workers (per RANK in DDP mode)') | |
| hyp: str = 'data/hyps/hyp.scratch-low.yaml' #', type=str, default=ROOT / 'data/hyps/hyp.scratch-low.yaml', help='hyperparameters path') | |
| resume: bool = False # ', nargs='?', const=True, default=False, help='resume most recent training') | |
| rect: bool = False # ', action='store_true', help='rectangular training') | |
| cache: bool = True #', type=str, nargs='?', const='ram', help='--cache images in "ram" (default) or "disk"') | |
| freeze: list = field(init=True,default_factory=list) #', nargs='+', type=int, default=[0], help='Freeze layers: backbone=10, first3=0 1 2') | |
| evolve: int = 0 # 100 or 300 ish #', type=int, nargs='?', const=300, help='evolve hyperparameters for x generations') | |
| device: int = '' #', default='', help='cuda device, i.e. 0 or 0,1,2,3 or cpu') | |
| upload_dataset: bool = False | |
| bbox_interval: int = -1 | |
| artifact_alias: str = 'latest' | |
| # Recommend using defaults for below: | |
| nosave: bool = False # ', action='store_true', help='only save final checkpoint') | |
| noval: bool = False # ', action='store_true', help='only validate final epoch') | |
| cfg_model: str = '' #', type=str, default='', help='model.yaml path') | |
| noautoanchor: bool = False #', action='store_true', help='disable AutoAnchor') | |
| noplots: bool = False #', action='store_true', help='save no plot files') | |
| bucket: str = '' #', type=str, default='', help='gsutil bucket') | |
| image_weights: bool = False #', action='store_true', help='use weighted image selection for training') | |
| multi_scale: bool = False #' #', action='store_true', help='vary img-size +/- 50%%') | |
| single_cls: bool = False #', action='store_true', help='train multi-class data as single-class') | |
| sync_bn: bool = True #', action='store_true', help='use SyncBatchNorm, only available in DDP mode') | |
| exist_ok: bool = False #', action='store_true', help='existing project/name ok, do not increment') | |
| quad: bool = False #', action='store_true', help='quad dataloader') | |
| cos_lr: bool = False #', action='store_true', help='cosine LR scheduler') | |
| label_smoothing: float = 0.0 #', type=float, default=0.0, help='Label smoothing epsilon') | |
| local_rank: bool = -1 #', type=int, default=-1, help='DDP parameter, do not modify') | |
| new_time: str = field(init=False) | |
| path_to_config: str = field(init=False) | |
| # path_to_model: str = field(init=False) | |
| # path_to_ruler_class_names: str = field(init=False) | |
| # path_to_train_json: str = field(init=False) | |
| # path_to_val_json: str = field(init=False) | |
| # dir_images_train: str = field(init=False) | |
| # dir_images_val: str = field(init=False) | |
| # dir_images_test: str = field(init=False) | |
| # dir_out: str = field(init=False) | |
| base_architecture: str = field(init=False) | |
| cfg: str = field(init=False) | |
| w_and_b_key: str = field(init=False) | |
| w_and_b_project: str = field(init=False) | |
| entity: str = field(init=False) | |
| def __post_init__(self) -> None: | |
| ''' | |
| Setup | |
| ''' | |
| self.new_time = get_datetime() | |
| self.base_architecture = self.weights.split('.')[0] | |
| self.freeze = [0] | |
| ''' | |
| Configure names | |
| ''' | |
| dir_home = os.path.dirname(os.path.dirname(os.path.dirname(__file__))) | |
| path_cfg_private = os.path.join(dir_home,'PRIVATE_DATA.yaml') | |
| self.cfg_private = get_cfg_from_full_path(path_cfg_private) | |
| self.path_to_config = dir_home | |
| self.cfg = load_cfg(self.path_to_config) | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['name'] is not None: | |
| self.name = self.cfg['leafmachine']['component_detector_train']['model_options']['name'] | |
| self.name = "__".join([self.name,self.base_architecture,self.new_time]) | |
| # if self.cfg['leafmachine']['component_detector_train']['dir_out'] is None: | |
| # self.dir_out = "__".join([['leafmachine']['component_detector_train']['plant_or_archival'], self.new_time, self.name]) | |
| # else: | |
| # self.dir_out = self.cfg['leafmachine']['component_detector_train']['dir_out'] | |
| else: | |
| self.name = "DEFAULT_NAME" | |
| self.name = "__".join([self.name,self.base_architecture,self.new_time]) | |
| # if self.cfg['leafmachine']['component_detector_train']['dir_out'] is None: | |
| # self.dir_out = "__".join(["leaf_seg", self.new_time, self.name]) | |
| # self.dir_out = os.path.join('models', self.dir_out) | |
| # else: | |
| # self.dir_out = self.cfg['leafmachine']['component_detector_train']['dir_out'] | |
| ''' | |
| Weights and Biases Info | |
| https://wandb.ai/site | |
| ''' | |
| if self.cfg_private['w_and_b']['w_and_b_key'] is not None: | |
| self.w_and_b_key = self.cfg_private['w_and_b']['w_and_b_key'] | |
| if self.cfg['leafmachine']['component_detector_train']['plant_or_archival'] == 'PLANT': | |
| if self.cfg_private['w_and_b']['plant_component_detector_project'] is not None: | |
| self.w_and_b_project = self.cfg_private['w_and_b']['plant_component_detector_project'] | |
| elif self.cfg['leafmachine']['component_detector_train']['plant_or_archival'] == 'ARCHIVAL': | |
| if self.cfg_private['w_and_b']['archival_component_detector_project'] is not None: | |
| self.w_and_b_project = self.cfg_private['w_and_b']['archival_component_detector_project'] | |
| elif self.cfg['leafmachine']['component_detector_train']['plant_or_archival'] == 'LANDMARK': | |
| if self.cfg_private['w_and_b']['landmark_component_detector_project'] is not None: | |
| self.w_and_b_project = self.cfg_private['w_and_b']['landmark_component_detector_project'] | |
| elif self.cfg['leafmachine']['component_detector_train']['plant_or_archival'] == 'ARM': | |
| if self.cfg_private['w_and_b']['arm_component_detector_project'] is not None: | |
| self.w_and_b_project = self.cfg_private['w_and_b']['arm_component_detector_project'] | |
| if self.cfg_private['w_and_b']['entity'] is not None: | |
| self.entity = self.cfg_private['w_and_b']['entity'] | |
| ''' | |
| Model Options | |
| ''' | |
| # Parameters | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['data'] is not None: | |
| self.data = self.cfg['leafmachine']['component_detector_train']['model_options']['data'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['project'] is not None: | |
| self.project = self.cfg['leafmachine']['component_detector_train']['model_options']['project'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['name'] is not None: | |
| self.name = self.cfg['leafmachine']['component_detector_train']['model_options']['name'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['weights'] is not None: | |
| self.weights = self.cfg['leafmachine']['component_detector_train']['model_options']['weights'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['optimizer'] is not None: | |
| self.optimizer = self.cfg['leafmachine']['component_detector_train']['model_options']['optimizer'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['batch_size'] is not None: | |
| self.batch_size = self.cfg['leafmachine']['component_detector_train']['model_options']['batch_size'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['epochs'] is not None: | |
| self.epochs = self.cfg['leafmachine']['component_detector_train']['model_options']['epochs'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['patience'] is not None: | |
| self.patience = self.cfg['leafmachine']['component_detector_train']['model_options']['patience'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['save_period'] is not None: | |
| self.save_period = self.cfg['leafmachine']['component_detector_train']['model_options']['save_period'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['imgsz'] is not None: | |
| self.imgsz = self.cfg['leafmachine']['component_detector_train']['model_options']['imgsz'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['workers'] is not None: | |
| self.workers = self.cfg['leafmachine']['component_detector_train']['model_options']['workers'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['hyp'] is not None: | |
| self.hyp = self.cfg['leafmachine']['component_detector_train']['model_options']['hyp'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['resume'] is not None: | |
| self.resume = self.cfg['leafmachine']['component_detector_train']['model_options']['resume'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['rect'] is not None: | |
| self.rect = self.cfg['leafmachine']['component_detector_train']['model_options']['rect'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['cache'] is not None: | |
| self.cache = self.cfg['leafmachine']['component_detector_train']['model_options']['cache'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['freeze'] is not None: | |
| self.freeze = self.cfg['leafmachine']['component_detector_train']['model_options']['freeze'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['evolve'] is not None: | |
| self.evolve = self.cfg['leafmachine']['component_detector_train']['model_options']['evolve'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['device'] is not None: | |
| self.device = self.cfg['leafmachine']['component_detector_train']['model_options']['device'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['upload_dataset'] is not None: | |
| self.upload_dataset = self.cfg['leafmachine']['component_detector_train']['model_options']['upload_dataset'] | |
| # Recommend using defaults for below: | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['nosave'] is not None: | |
| self.nosave = self.cfg['leafmachine']['component_detector_train']['model_options']['nosave'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['noval'] is not None: | |
| self.noval = self.cfg['leafmachine']['component_detector_train']['model_options']['noval'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['cfg_model'] is not None: | |
| self.cfg_model = self.cfg['leafmachine']['component_detector_train']['model_options']['cfg_model'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['noautoanchor'] is not None: | |
| self.noautoanchor = self.cfg['leafmachine']['component_detector_train']['model_options']['noautoanchor'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['noplots'] is not None: | |
| self.noplots = self.cfg['leafmachine']['component_detector_train']['model_options']['noplots'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['bucket'] is not None: | |
| self.bucket = self.cfg['leafmachine']['component_detector_train']['model_options']['bucket'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['image_weights'] is not None: | |
| self.image_weights = self.cfg['leafmachine']['component_detector_train']['model_options']['image_weights'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['multi_scale'] is not None: | |
| self.multi_scale = self.cfg['leafmachine']['component_detector_train']['model_options']['multi_scale'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['single_cls'] is not None: | |
| self.single_cls = self.cfg['leafmachine']['component_detector_train']['model_options']['single_cls'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['sync_bn'] is not None: | |
| self.sync_bn = self.cfg['leafmachine']['component_detector_train']['model_options']['sync_bn'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['exist_ok'] is not None: | |
| self.exist_ok = self.cfg['leafmachine']['component_detector_train']['model_options']['exist_ok'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['quad'] is not None: | |
| self.quad = self.cfg['leafmachine']['component_detector_train']['model_options']['quad'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['cos_lr'] is not None: | |
| self.cos_lr = self.cfg['leafmachine']['component_detector_train']['model_options']['cos_lr'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['label_smoothing'] is not None: | |
| self.label_smoothing = self.cfg['leafmachine']['component_detector_train']['model_options']['label_smoothing'] | |
| if self.cfg['leafmachine']['component_detector_train']['model_options']['local_rank'] is not None: | |
| self.local_rank = self.cfg['leafmachine']['component_detector_train']['model_options']['local_rank'] | |
| self.project = os.path.join(ROOT,self.project,self.w_and_b_project,self.name) #', default=ROOT / 'runs/train', help='save to project/name') | |
| self.weights = os.path.join(ROOT,self.weights) | |
| self.hyp = os.path.join(ROOT,self.hyp) | |
| def parse_opt(known=False): | |
| parser = argparse.ArgumentParser() | |
| parser.add_argument('--weights', type=str, default=ROOT / 'yolov5s.pt', help='initial weights path') | |
| parser.add_argument('--cfg-model', type=str, default='', help='model.yaml path') | |
| parser.add_argument('--data', type=str, default=ROOT / 'data/coco128.yaml', help='dataset.yaml path') | |
| parser.add_argument('--hyp', type=str, default=ROOT / 'data/hyps/hyp.scratch-low.yaml', help='hyperparameters path') | |
| parser.add_argument('--epochs', type=int, default=300) | |
| parser.add_argument('--batch-size', type=int, default=16, help='total batch size for all GPUs, -1 for autobatch') | |
| parser.add_argument('--imgsz', '--img', '--img-size', type=int, default=640, help='train, val image size (pixels)') | |
| parser.add_argument('--rect', action='store_true', help='rectangular training') | |
| parser.add_argument('--resume', nargs='?', const=True, default=False, help='resume most recent training') | |
| parser.add_argument('--nosave', action='store_true', help='only save final checkpoint') | |
| parser.add_argument('--noval', action='store_true', help='only validate final epoch') | |
| parser.add_argument('--noautoanchor', action='store_true', help='disable AutoAnchor') | |
| parser.add_argument('--noplots', action='store_true', help='save no plot files') | |
| parser.add_argument('--evolve', type=int, nargs='?', const=300, help='evolve hyperparameters for x generations') | |
| parser.add_argument('--bucket', type=str, default='', help='gsutil bucket') | |
| parser.add_argument('--cache', type=str, nargs='?', const='ram', help='--cache images in "ram" (default) or "disk"') | |
| parser.add_argument('--image-weights', action='store_true', help='use weighted image selection for training') | |
| parser.add_argument('--device', default='', help='cuda device, i.e. 0 or 0,1,2,3 or cpu') | |
| parser.add_argument('--multi-scale', action='store_true', help='vary img-size +/- 50%%') | |
| parser.add_argument('--single-cls', action='store_true', help='train multi-class data as single-class') | |
| parser.add_argument('--optimizer', type=str, choices=['SGD', 'Adam', 'AdamW'], default='SGD', help='optimizer') | |
| parser.add_argument('--sync-bn', action='store_true', help='use SyncBatchNorm, only available in DDP mode') | |
| parser.add_argument('--workers', type=int, default=8, help='max dataloader workers (per RANK in DDP mode)') | |
| parser.add_argument('--project', default=ROOT / 'runs/train', help='save to project/name') | |
| parser.add_argument('--name', default='exp', help='save to project/name') | |
| parser.add_argument('--exist-ok', action='store_true', help='existing project/name ok, do not increment') | |
| parser.add_argument('--quad', action='store_true', help='quad dataloader') | |
| parser.add_argument('--cos-lr', action='store_true', help='cosine LR scheduler') | |
| parser.add_argument('--label-smoothing', type=float, default=0.0, help='Label smoothing epsilon') | |
| parser.add_argument('--patience', type=int, default=100, help='EarlyStopping patience (epochs without improvement)') | |
| parser.add_argument('--freeze', nargs='+', type=int, default=[0], help='Freeze layers: backbone=10, first3=0 1 2') | |
| parser.add_argument('--save-period', type=int, default=-1, help='Save checkpoint every x epochs (disabled if < 1)') | |
| parser.add_argument('--local_rank', type=int, default=-1, help='DDP parameter, do not modify') | |
| # Weights & Biases arguments | |
| parser.add_argument('--entity', default=None, help='W&B: Entity') | |
| parser.add_argument('--upload_dataset', nargs='?', const=True, default=False, help='W&B: Upload data, "val" option') | |
| parser.add_argument('--bbox_interval', type=int, default=-1, help='W&B: Set bounding-box image logging interval') | |
| parser.add_argument('--artifact_alias', type=str, default='latest', help='W&B: Version of dataset artifact to use') | |
| opt = parser.parse_known_args()[0] if known else parser.parse_args() | |
| return opt | |
| def main(opt, callbacks=Callbacks()): | |
| # Checks | |
| # if RANK in (-1, 0): | |
| # print_args(vars(opt)) | |
| # check_git_status() | |
| # check_requirements(exclude=['thop']) | |
| # Resume | |
| if opt.resume and not check_wandb_resume(opt) and not opt.evolve: # resume an interrupted run | |
| ckpt = opt.resume if isinstance(opt.resume, str) else get_latest_run() # specified or most recent path | |
| assert os.path.isfile(ckpt), 'ERROR: --resume checkpoint does not exist' | |
| with open(Path(ckpt).parent.parent / 'opt.yaml', errors='ignore') as f: | |
| opt = argparse.Namespace(**yaml.safe_load(f)) # replace | |
| opt.cfg_model, opt.weights, opt.resume = '', ckpt, True # reinstate | |
| LOGGER.info(f'Resuming training from {ckpt}') | |
| else: | |
| opt.data, opt.cfg_model, opt.hyp, opt.weights, opt.project = \ | |
| check_file(opt.data), check_yaml(opt.cfg_model), check_yaml(opt.hyp), str(opt.weights), str(opt.project) # checks | |
| assert len(opt.cfg_model) or len(opt.weights), 'either --cfg or --weights must be specified' | |
| if opt.evolve: | |
| if opt.project == str(ROOT / 'runs/train'): # if default project name, rename to runs/evolve | |
| opt.project = str(ROOT / 'runs/evolve') | |
| opt.exist_ok, opt.resume = opt.resume, False # pass resume to exist_ok and disable resume | |
| if opt.name == 'cfg_model': | |
| opt.name = Path(opt.cfg_model).stem # use model.yaml as name | |
| opt.save_dir = str(increment_path(Path(opt.project) / opt.name, exist_ok=opt.exist_ok)) | |
| # DDP mode | |
| device = select_device(opt.device, batch_size=opt.batch_size) | |
| if LOCAL_RANK != -1: | |
| msg = 'is not compatible with YOLOv5 Multi-GPU DDP training' | |
| assert not opt.image_weights, f'--image-weights {msg}' | |
| assert not opt.evolve, f'--evolve {msg}' | |
| assert opt.batch_size != -1, f'AutoBatch with --batch-size -1 {msg}, please pass a valid --batch-size' | |
| assert opt.batch_size % WORLD_SIZE == 0, f'--batch-size {opt.batch_size} must be multiple of WORLD_SIZE' | |
| assert torch.cuda.device_count() > LOCAL_RANK, 'insufficient CUDA devices for DDP command' | |
| torch.cuda.set_device(LOCAL_RANK) | |
| device = torch.device('cuda', LOCAL_RANK) | |
| dist.init_process_group(backend="nccl" if dist.is_nccl_available() else "gloo") | |
| # Train | |
| if not opt.evolve: | |
| train(opt.hyp, opt, device, callbacks) | |
| if WORLD_SIZE > 1 and RANK == 0: | |
| LOGGER.info('Destroying process group... ') | |
| dist.destroy_process_group() | |
| # Evolve hyperparameters (optional) | |
| else: | |
| # Hyperparameter evolution metadata (mutation scale 0-1, lower_limit, upper_limit) | |
| meta = { | |
| 'lr0': (1, 1e-5, 1e-1), # initial learning rate (SGD=1E-2, Adam=1E-3) | |
| 'lrf': (1, 0.01, 1.0), # final OneCycleLR learning rate (lr0 * lrf) | |
| 'momentum': (0.3, 0.6, 0.98), # SGD momentum/Adam beta1 | |
| 'weight_decay': (1, 0.0, 0.001), # optimizer weight decay | |
| 'warmup_epochs': (1, 0.0, 5.0), # warmup epochs (fractions ok) | |
| 'warmup_momentum': (1, 0.0, 0.95), # warmup initial momentum | |
| 'warmup_bias_lr': (1, 0.0, 0.2), # warmup initial bias lr | |
| 'box': (1, 0.02, 0.2), # box loss gain | |
| 'cls': (1, 0.2, 4.0), # cls loss gain | |
| 'cls_pw': (1, 0.5, 2.0), # cls BCELoss positive_weight | |
| 'obj': (1, 0.2, 4.0), # obj loss gain (scale with pixels) | |
| 'obj_pw': (1, 0.5, 2.0), # obj BCELoss positive_weight | |
| 'iou_t': (0, 0.1, 0.7), # IoU training threshold | |
| 'anchor_t': (1, 2.0, 8.0), # anchor-multiple threshold | |
| 'anchors': (2, 2.0, 10.0), # anchors per output grid (0 to ignore) | |
| 'fl_gamma': (0, 0.0, 2.0), # focal loss gamma (efficientDet default gamma=1.5) | |
| 'hsv_h': (1, 0.0, 0.1), # image HSV-Hue augmentation (fraction) | |
| 'hsv_s': (1, 0.0, 0.9), # image HSV-Saturation augmentation (fraction) | |
| 'hsv_v': (1, 0.0, 0.9), # image HSV-Value augmentation (fraction) | |
| 'degrees': (1, 0.0, 45.0), # image rotation (+/- deg) | |
| 'translate': (1, 0.0, 0.9), # image translation (+/- fraction) | |
| 'scale': (1, 0.0, 0.9), # image scale (+/- gain) | |
| 'shear': (1, 0.0, 10.0), # image shear (+/- deg) | |
| 'perspective': (0, 0.0, 0.001), # image perspective (+/- fraction), range 0-0.001 | |
| 'flipud': (1, 0.0, 1.0), # image flip up-down (probability) | |
| 'fliplr': (0, 0.0, 1.0), # image flip left-right (probability) | |
| 'mosaic': (1, 0.0, 1.0), # image mixup (probability) | |
| 'mixup': (1, 0.0, 1.0), # image mixup (probability) | |
| 'copy_paste': (1, 0.0, 1.0)} # segment copy-paste (probability) | |
| with open(opt.hyp, errors='ignore') as f: | |
| hyp = yaml.safe_load(f) # load hyps dict | |
| if 'anchors' not in hyp: # anchors commented in hyp.yaml | |
| hyp['anchors'] = 3 | |
| opt.noval, opt.nosave, save_dir = True, True, Path(opt.save_dir) # only val/save final epoch | |
| # ei = [isinstance(x, (int, float)) for x in hyp.values()] # evolvable indices | |
| evolve_yaml, evolve_csv = save_dir / 'hyp_evolve.yaml', save_dir / 'evolve.csv' | |
| if opt.bucket: | |
| os.system(f'gsutil cp gs://{opt.bucket}/evolve.csv {evolve_csv}') # download evolve.csv if exists | |
| for _ in range(opt.evolve): # generations to evolve | |
| if evolve_csv.exists(): # if evolve.csv exists: select best hyps and mutate | |
| # Select parent(s) | |
| parent = 'single' # parent selection method: 'single' or 'weighted' | |
| x = np.loadtxt(evolve_csv, ndmin=2, delimiter=',', skiprows=1) | |
| n = min(5, len(x)) # number of previous results to consider | |
| x = x[np.argsort(-fitness(x))][:n] # top n mutations | |
| w = fitness(x) - fitness(x).min() + 1E-6 # weights (sum > 0) | |
| if parent == 'single' or len(x) == 1: | |
| # x = x[random.randint(0, n - 1)] # random selection | |
| x = x[random.choices(range(n), weights=w)[0]] # weighted selection | |
| elif parent == 'weighted': | |
| x = (x * w.reshape(n, 1)).sum(0) / w.sum() # weighted combination | |
| # Mutate | |
| mp, s = 0.8, 0.2 # mutation probability, sigma | |
| npr = np.random | |
| npr.seed(int(time.time())) | |
| g = np.array([meta[k][0] for k in hyp.keys()]) # gains 0-1 | |
| ng = len(meta) | |
| v = np.ones(ng) | |
| while all(v == 1): # mutate until a change occurs (prevent duplicates) | |
| v = (g * (npr.random(ng) < mp) * npr.randn(ng) * npr.random() * s + 1).clip(0.3, 3.0) | |
| for i, k in enumerate(hyp.keys()): # plt.hist(v.ravel(), 300) | |
| hyp[k] = float(x[i + 7] * v[i]) # mutate | |
| # Constrain to limits | |
| for k, v in meta.items(): | |
| hyp[k] = max(hyp[k], v[1]) # lower limit | |
| hyp[k] = min(hyp[k], v[2]) # upper limit | |
| hyp[k] = round(hyp[k], 5) # significant digits | |
| # Train mutation | |
| results = train(hyp.copy(), opt, device, callbacks) | |
| callbacks = Callbacks() | |
| # Write mutation results | |
| print_mutation(results, hyp.copy(), save_dir, opt.bucket) | |
| # Plot results | |
| plot_evolve(evolve_csv) | |
| LOGGER.info(f'Hyperparameter evolution finished {opt.evolve} generations\n' | |
| f"Results saved to {colorstr('bold', save_dir)}\n" | |
| f'Usage example: $ python train.py --hyp {evolve_yaml}') | |
| def run(**kwargs): | |
| # Usage: import train; train.run(data='coco128.yaml', imgsz=320, weights='yolov5m.pt') | |
| try: | |
| opts = parse_opt(True) | |
| except: | |
| opts = TrainOptions() | |
| for k, v in kwargs.items(): | |
| setattr(opts, k, v) | |
| main(opts) | |
| return opts | |
| if __name__ == "__main__": | |
| dir_home = os.path.dirname(os.path.dirname(os.path.dirname(__file__))) | |
| path_cfg_private = os.path.join(dir_home,'PRIVATE_DATA.yaml') | |
| cfg_private = get_cfg_from_full_path(path_cfg_private) | |
| if cfg_private['w_and_b']['w_and_b_key'] is not None: | |
| w_and_b_key = cfg_private['w_and_b']['w_and_b_key'] | |
| path_to_config = dir_home | |
| cfg = load_cfg(path_to_config) | |
| if cfg['leafmachine']['component_detector_train']['plant_or_archival'] == 'PLANT': | |
| if cfg_private['w_and_b']['plant_component_detector_project'] is not None: | |
| w_and_b_project = cfg_private['w_and_b']['plant_component_detector_project'] | |
| elif cfg['leafmachine']['component_detector_train']['plant_or_archival'] == 'ARCHIVAL': | |
| if cfg_private['w_and_b']['archival_component_detector_project'] is not None: | |
| w_and_b_project = cfg_private['w_and_b']['archival_component_detector_project'] | |
| elif cfg['leafmachine']['component_detector_train']['plant_or_archival'] == 'LANDMARK': | |
| if cfg_private['w_and_b']['landmark_component_detector_project'] is not None: | |
| w_and_b_project = cfg_private['w_and_b']['landmark_component_detector_project'] | |
| elif cfg['leafmachine']['component_detector_train']['plant_or_archival'] == 'ARM': | |
| if cfg_private['w_and_b']['arm_component_detector_project'] is not None: | |
| w_and_b_project = cfg_private['w_and_b']['arm_component_detector_project'] | |
| if cfg_private['w_and_b']['entity'] is not None: | |
| entity = cfg_private['w_and_b']['entity'] | |
| if cfg['leafmachine']['component_detector_train']['model_options']['name'] is not None: | |
| name = cfg['leafmachine']['component_detector_train']['model_options']['name'] | |
| project = os.path.join(ROOT,w_and_b_project,w_and_b_project,name) | |
| wandb.init(project=w_and_b_project,name=name, entity=entity) | |
| wandb.config = { | |
| "learning_rate": 0.001, | |
| "epochs": 300, | |
| "batch_size": 14, | |
| # "upload_dataset": opts.upload_dataset, | |
| # "bbox_interval": opts.bbox_interval, | |
| # "artifact_alias": opts.artifact_alias | |
| } | |
| # try: | |
| # opts = parse_opt() | |
| # except: | |
| opts = TrainOptions() | |
| main(opts) | |