ocr

Documentation

Index

• type Engine
  • func NewEngine(langs ...string) (*Engine, error)
  • func (e *Engine) Close()
  • func (e *Engine) RecognizeElement(ctx context.Context, backendNodeID int64) (string, error)

Types

type Engine

type Engine struct {
	DebugDir string
}

Engine is a stub OCR engine when built without the "ocr" build tag. All methods return an error indicating OCR is not available.

func NewEngine

func NewEngine(langs ...string) (*Engine, error)

NewEngine returns an error because OCR support is not compiled in. Build with -tags=ocr to enable OCR (requires Tesseract).

func (*Engine) Close

func (e *Engine) Close()

Close is a no-op for the stub engine.

func (*Engine) RecognizeElement

func (e *Engine) RecognizeElement(ctx context.Context, backendNodeID int64) (string, error)

RecognizeElement always returns an error for the stub engine.