mirror of
https://github.com/azaion/ai-training.git
synced 2026-04-22 06:56:34 +00:00
Oleksandr Bezdieniezhnykh
87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
import os
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import shutil
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from datetime import datetime
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from pathlib import Path
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from ultralytics import YOLO
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from constants import current_images_dir, current_labels_dir, annotation_classes, today_dataset, prefix
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yaml_name = 'data.yaml'
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yaml_path = os.path.join(today_dataset, yaml_name)
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train_set = 70
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valid_set = 20
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test_set = 10
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def form_dataset():
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os.makedirs(today_dataset, exist_ok=True)
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images = os.listdir(current_images_dir)
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train_size = int(len(images) * train_set / 100.0)
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valid_size = int(len(images) * valid_set / 100.0)
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move_annotations(images[:train_size], 'train')
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move_annotations(images[train_size:train_size + valid_size], 'valid')
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move_annotations(images[train_size + valid_size:], 'test')
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create_yaml()
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def move_annotations(images, folder):
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destination_images = os.path.join(today_dataset, folder, 'images')
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os.makedirs(destination_images, exist_ok=True)
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destination_labels = os.path.join(today_dataset, folder, 'labels')
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os.makedirs(destination_labels, exist_ok=True)
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for image_name in images:
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image_path = os.path.join(current_images_dir, image_name)
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label_name = f'{Path(image_name).stem}.txt'
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label_path = os.path.join(current_labels_dir, label_name)
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os.replace(image_path, os.path.join(destination_images, image_name))
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os.replace(label_path, os.path.join(destination_labels, label_name))
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def create_yaml():
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lines = ['names:']
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for c in annotation_classes:
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lines.append(f'- {annotation_classes[c].name}')
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lines.append(f'nc: {len(annotation_classes)}')
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lines.append(f'test: test/images')
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lines.append(f'train: train/images')
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lines.append(f'val: valid/images')
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lines.append('')
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with open(yaml_path, 'w', encoding='utf-8') as f:
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f.writelines([f'{line}\n' for line in lines])
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def get_recent_model():
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date_sets = []
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datasets = [next((file for file in os.listdir(os.path.join('datasets', d)) if file.endswith('pt')), None)
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for d in os.listdir('datasets')]
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# date_str = d.replace(prefix, '')
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# if date_str == 'current' or date_str == f'{datetime.now():%Y-%m-%d}':
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# continue
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# if len(date_sets) == 0:
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# return None
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recent = max(date_sets)
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return os.path.join('datasets', f'{prefix}{recent}', f'{prefix}{recent}.pt')
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def retrain():
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model = YOLO(get_recent_model() or 'yolov10x.yaml')
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model.train(data=yaml_path, save=True, cache=True)
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def revert_to_current(date):
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def revert_dir(dir):
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os.listdir(os.path.join(current_images_dir, 'images'))
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date_dataset = f'{prefix}{date}'
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revert_dir(os.path.join(date_dataset, 'test'))
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form_dataset()
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create_yaml()
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retrain()
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