mirror of
https://github.com/azaion/ai-training.git
synced 2026-04-22 10:16:34 +00:00
Oleksandr Bezdieniezhnykh
129 lines
4.4 KiB
Python
129 lines
4.4 KiB
Python
import os.path
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import time
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from pathlib import Path
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import albumentations as A
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import cv2
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from constants import current_images_dir, current_labels_dir, annotation_classes
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from dto.imageLabel import ImageLabel
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labels_dir = 'labels'
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images_dir = 'images'
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def image_processing(img_ann: ImageLabel) -> [ImageLabel]:
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transforms = [
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A.Compose([A.HorizontalFlip(always_apply=True)],
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bbox_params=A.BboxParams(format='yolo')),
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A.Compose([A.RandomBrightnessContrast(always_apply=True)],
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bbox_params=A.BboxParams(format='yolo')),
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A.Compose([A.SafeRotate(limit=90, always_apply=True)],
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bbox_params=A.BboxParams(format='yolo')),
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A.Compose([A.SafeRotate(limit=90, always_apply=True),
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A.RandomBrightnessContrast(always_apply=True)],
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bbox_params=A.BboxParams(format='yolo')),
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A.Compose([A.ShiftScaleRotate(scale_limit=0.2, always_apply=True),
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A.VerticalFlip(always_apply=True),],
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bbox_params=A.BboxParams(format='yolo')),
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A.Compose([A.ShiftScaleRotate(scale_limit=0.2, always_apply=True)],
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bbox_params=A.BboxParams(format='yolo')),
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A.Compose([A.SafeRotate(limit=90, always_apply=True),
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A.RandomBrightnessContrast(always_apply=True)],
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bbox_params=A.BboxParams(format='yolo'))
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]
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results = []
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for i, transform in enumerate(transforms):
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try:
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res = transform(image=img_ann.image, bboxes=img_ann.labels)
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path = Path(img_ann.image_path)
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name = f'{path.stem}_{i+1}'
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img = ImageLabel(
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image=res['image'],
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labels=res['bboxes'],
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image_path=os.path.join(current_images_dir, f'{name}{path.suffix}'),
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labels_path=os.path.join(current_labels_dir, f'{name}.txt')
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)
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results.append(img)
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except Exception as e:
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print(f'Error during transformtation: {e}')
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return results
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def write_result(img_ann: ImageLabel, show_image=False):
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os.makedirs(os.path.dirname(img_ann.image_path), exist_ok=True)
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os.makedirs(os.path.dirname(img_ann.labels_path), exist_ok=True)
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if show_image:
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img_ann.visualize(annotation_classes)
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cv2.imwrite(img_ann.image_path, img_ann.image)
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print(f'{img_ann.image_path} written')
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with open(img_ann.labels_path, 'w') as f:
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lines = [f'{ann[4]} {round(ann[0], 5)} {round(ann[1], 5)} {round(ann[2], 5)} {round(ann[3], 5)}\n' for ann in img_ann.labels]
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f.writelines(lines)
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f.close()
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print(f'{img_ann.labels_path} written')
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def read_labels(labels_path) -> [[]]:
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with open(labels_path, 'r') as f:
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rows = f.readlines()
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arr = []
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for row in rows:
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str_coordinates = row.split(' ')
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class_num = str_coordinates.pop(0)
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coordinates = [float(n.replace(',', '.')) for n in str_coordinates]
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coordinates.append(class_num)
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arr.append(coordinates)
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return arr
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def process_image(img_ann):
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results = image_processing(img_ann)
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for res_ann in results:
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write_result(res_ann)
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write_result(ImageLabel(
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image=img_ann.image,
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labels=img_ann.labels,
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image_path=os.path.join(current_images_dir, Path(img_ann.image_path).name),
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labels_path=os.path.join(current_labels_dir, Path(img_ann.labels_path).name)
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))
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os.remove(img_ann.image_path)
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os.remove(img_ann.labels_path)
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def main():
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while True:
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images = os.listdir(images_dir)
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if len(images) == 0:
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time.sleep(5)
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continue
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for image in images:
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try:
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image_path = os.path.join(images_dir, image)
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labels_path = os.path.join(labels_dir, f'{Path(image_path).stem}.txt')
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process_image(ImageLabel(
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image_path=image_path,
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image=cv2.imread(image_path),
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labels_path=labels_path,
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labels=read_labels(labels_path)
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))
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except Exception as e:
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print(f'Error appeared {e}')
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try:
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os.remove(image_path)
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except OSError:
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pass
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try:
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os.remove(labels_path)
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except OSError:
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pass
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if __name__ == '__main__':
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main()
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