ocra
ocra — Python-библиотека для анализа изображений текста (сканы, вырезки и т.п.).
Два основных инструмента:
OrientationPredictor— определение ориентации (вертикальная/горизонтальная)HandwrittenPredictor— классификация типа текста (рукописный/печатный)
Установка
# С CPU поддержкой
pip install ocra[cpu]
# С GPU поддержкой (требует CUDA + cuDNN)
pip install ocra[gpu]
Быстрый старт
from src.ocra.orientation import OrientationPredictor
from src.ocra.ishandwritten import HandwrittenPredictor
def main():
# Инициализация
orient_pred = OrientationPredictor(verbose=0)
text_pred = HandwrittenPredictor(verbose=False)
image = "examples/hrk_463.png"
# Определение ориентации
orient_res = orient_pred.predict_single(image)
orientation = "VERT" if orient_res['pred_class'] == 1 else "HORZ"
# Определение типа текста
text_res = text_pred.predict_single(image)
text_type = text_res['prediction'] # 'handwritten' или 'printed'
print(f"Ориентация: {orientation} ({orient_res['confidence']:.3f})")
print(f"Тип текста: {text_type} ({text_res['confidence']:.3f})")
if __name__ == "__main__":
main()
Пример вывода:
Ориентация: HORZ (1.000)
Тип текста: handwritten (0.982)
OrientationPredictor
Определяет ориентацию изображения как горизонтальную (HORZ) или вертикальную (VERT).
from src.ocra.orientation import OrientationPredictor
predictor = OrientationPredictor()
result = predictor.predict_single("examples/hrk_463.png")
print(f"Класс: {result['pred_class']}") # 0=HORZ, 1=VERT
print(f"Предсказание: {result['prediction']}") # 'horizontal' или 'vertical'
print(f"Уверенность: {result['confidence']:.4f}")
HandwrittenPredictor
Классифицирует тип текста на изображении: рукописный или печатный.
from src.ocra.ishandwritten import HandwrittenPredictor
predictor = HandwrittenPredictor()
result = predictor.predict_single("examples/hrk_463.png")
print(f"Класс: {result['pred_class']}") # 0=printed, 1=handwritten
print(f"Предсказание: {result['prediction']}") # 'handwritten' или 'printed'
print(f"Уверенность: {result['confidence']:.4f}")
print(f"Высокая уверенность: {result['high_confidence']}")
Metadata
Release files for ocra 0.2.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| ocra-0.2.1.tar.gz | 5.0 MB | Without provenance | Details for ocra-0.2.1.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| ocra-0.2.1-py3-none-any.whl | Python 3 | none | any | Details for ocra-0.2.1-py3-none-any.whl |
Total release size: 10.0 MB
Release files / ocra-0.2.1.tar.gz
| Download URL | ocra-0.2.1.tar.gz |
|---|---|
| Size | 5.0 MB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
c2d71de0b5950b9711dce2426e5b9dc859eaa5cdc3c99a6234245765fd658d0a
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Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/6.2.0 CPython/3.11.8
|
Release files / ocra-0.2.1-py3-none-any.whl
| Download URL | ocra-0.2.1-py3-none-any.whl |
|---|---|
| Size | 5.0 MB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
84d6c74daa102ae2ccf7924a7b9e93d874c40abb5e9449838f9f09aab77cf39e
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BLAKE2b-256 checksum How to use checksums |
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Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/6.2.0 CPython/3.11.8
|
Security for ocra 0.2.1
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