Module ocr 

OCR backend contract surface and concrete backends.

The OcrBackend trait is intentionally narrow: finalized image bytes in, flat OCR spans out. Preprocessing, multi-page orchestration, and layout reconstruction stay above or below this module so backend plurality can arrive later without widening the trust boundary.

Re-exports

pub use tesseract::TesseractBackend;ocr-tesseract

Modules

tesseractocr-tesseract

Tesseract subprocess OCR adapter.

Structs

BBox

Bounding box in image pixel coordinates.

ImageInput

Finalized image payload for one OCR pass.

LanguageTag

Backend language tag.

OcrHints

OCR backend hints. Backends may downgrade hints they cannot support.

OcrResult

Result of an OCR pass: full text + a structured confidence summary.

OcrSpan

One OCR text span emitted by a backend.

Enums

ImageFormat

Raster image format handed to an OCR backend.

OcrError

Closed OCR backend error surface.

Traits

OcrBackend

Narrow OCR backend contract.

Functions

detect_image_format

Detect the encoded image format from magic bytes.