Docling/docling/backend/abstract_backend.py
Christoph Auer e94d317c02
feat: Add adaptive OCR, factor out treatment of OCR areas and cell filtering (#38)
* Introduce adaptive OCR

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

* Factor out BaseOcrModel, add docling-parse backend tests, fixes

* Make easyocr default dep

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

---------

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>
2024-08-20 15:28:03 +02:00

60 lines
1.2 KiB
Python

from abc import ABC, abstractmethod
from io import BytesIO
from pathlib import Path
from typing import Any, Iterable, Optional, Union
from PIL import Image
class PdfPageBackend(ABC):
def __init__(self, page_obj: Any) -> object:
pass
@abstractmethod
def get_text_in_rect(self, bbox: "BoundingBox") -> str:
pass
@abstractmethod
def get_text_cells(self) -> Iterable["Cell"]:
pass
@abstractmethod
def get_bitmap_rects(self, scale: int = 1) -> Iterable["BoundingBox"]:
pass
@abstractmethod
def get_page_image(
self, scale: int = 1, cropbox: Optional["BoundingBox"] = None
) -> Image.Image:
pass
@abstractmethod
def get_size(self) -> "PageSize":
pass
@abstractmethod
def unload(self):
pass
class PdfDocumentBackend(ABC):
@abstractmethod
def __init__(self, path_or_stream: Union[BytesIO, Path]):
pass
@abstractmethod
def load_page(self, page_no: int) -> PdfPageBackend:
pass
@abstractmethod
def page_count(self) -> int:
pass
@abstractmethod
def is_valid(self) -> bool:
pass
@abstractmethod
def unload(self):
pass