import type { SlideImage } from "./types.js";
export declare function cleanOcrText(text: string): string;
export declare function estimateOcrConfidence(text: string): number;
export declare function runTesseract(tesseractPath: string, imagePath: string): Promise<string>;
export declare function runOcrOnSlides(slides: SlideImage[], tesseractPath: string, workers: number, onProgress?: ((completed: number, total: number) => void) | null): Promise<SlideImage[]>;
