Ayomide
38 lines
1.4 KiB
Python
38 lines
1.4 KiB
Python
import pandas as pd
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from pathlib import Path
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import os
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def csv_to_yolo(csv_path, output_dir):
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# Create output directory if it doesn't exist
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Path(output_dir).mkdir(parents=True, exist_ok=True)
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df = pd.read_csv(csv_path)
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for filename in df['filename'].unique():
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img_data = df[df['filename'] == filename].iloc[0]
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img_w, img_h = img_data['img_width'], img_data['img_height']
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yolo_lines = []
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for _, row in df[df['filename'] == filename].iterrows():
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# Convert absolute to normalized coordinates
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x_center = ((row['x1'] + row['x2']) / 2) / img_w
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y_center = ((row['y1'] + row['y2']) / 2) / img_h
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width = abs(row['x2'] - row['x1']) / img_w
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height = abs(row['y2'] - row['y1']) / img_h
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yolo_lines.append(f"0 {x_center:.6f} {y_center:.6f} {width:.6f} {height:.6f}")
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# Save as YOLO .txt file
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txt_path = Path(output_dir) / f"{Path(filename).stem}.txt"
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with open(txt_path, 'w') as f:
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f.write("\n".join(yolo_lines))
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print(f"Successfully converted CSV to YOLO format in {output_dir}")
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# Error handling
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try:
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csv_to_yolo("annotations.csv", "yolo_labels")
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except FileNotFoundError:
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print("Error: annotations.csv not found. Please check the file path.")
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except Exception as e:
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print(f"An error occurred: {str(e)}") |