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https://github.com/azaion/ai-training.git
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Nazar Sturanec
90 lines
3.3 KiB
Python
90 lines
3.3 KiB
Python
import os.path
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import albumentations as A
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import cv2
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from pathlib import Path
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labels_dir = 'labels'
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images_dir = 'images'
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current_dataset_dir = os.path.join('datasets', 'zombobase-current')
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class ImageAnnotation:
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def read_annotations(self) -> [[]]:
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with open(self.dataset_annotation_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) 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 __init__(self, image_path):
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self.image_path = image_path
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self.image_name = Path(image_path).stem
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self.dataset_image_path = os.path.join(current_dataset_dir, images_dir, self.image_path + '.jpg')
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self.image = cv2.imread(self.dataset_image_path)
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self.annotation_path = os.path.join(labels_dir, self.image_path + '.txt')
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self.dataset_annotation_path = os.path.join(current_dataset_dir, labels_dir, self.image_path + '.txt')
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self.annotations = self.read_annotations()
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def image_processing(img_ann: ImageAnnotation) -> [ImageAnnotation]:
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category_ids = []
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bboxes = ImageAnnotation(img_ann).read_annotations()
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for i in range(len(bboxes)):
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category_ids.append(bboxes[i][4])
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bboxes[i].pop(4)
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transform = A.Compose([
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A.HorizontalFlip(p=0.5),
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A.RandomBrightnessContrast(p=0.2),
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A.ShiftScaleRotate(shift_limit=0.1, scale_limit=0.2, rotate_limit=15, p=0.5),
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], bbox_params=A.BboxParams(format='yolo', label_fields=['category_ids']))
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bboxes = bboxes
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imag = ImageAnnotation(img_ann).image
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transformed = transform(image=imag, bboxes=bboxes, category_ids=category_ids)
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transformed_image = transformed['image']
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transformed_bboxes = transformed['bboxes']
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transformed_category_ids = transformed['category_ids']
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return transformed_image, transformed_bboxes, transformed_category_ids
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def write_results(img_ann: ImageAnnotation):
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for i in range(10):
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transformed_image, transformed_bboxes, transformed_category_ids, = image_processing(img_ann)
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cv2.imwrite(os.path.join(current_dataset_dir, images_dir, str(i)+ImageAnnotation(img_ann).image_path + '.jpg'), transformed_image)
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with open(os.path.join(current_dataset_dir, labels_dir, str(i)+ImageAnnotation(img_ann).image_path + '.txt'), 'w') as f:
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for bbox, category_id in zip(transformed_bboxes, transformed_category_ids):
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x_center, y_center, width, height = bbox
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cla = category_id
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f.write(f"{cla} {x_center} {y_center} {width} {height}\n")
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#
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#
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def process_image():
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file_annotation = []
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file_annotation_finished =[]
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for foldername, subfolders, filenames in os.walk(os.path.join(current_dataset_dir,images_dir)):
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file_annotation.append(filenames)
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print(file_annotation)
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for i in range(len(file_annotation[0])):
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ff = file_annotation[0][i].split('.')
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ff.pop(-1)
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ff = '.'.join(ff)
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file_annotation_finished.append(ff)
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return file_annotation_finished
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def main():
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process_image()
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for i in process_image():
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write_results(i)
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if __name__ == '__main__':
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main() |