import { type Frame } from 'react-native-vision-camera';
/**
 * Performs OCR (Optical Character Recognition) on camera frames.
 * Detects and extracts text from images in real-time.
 *
 * @param frame - The camera frame to process
 * @returns Object containing recognized text or null if no text found
 */
export type OcrOptions = {
    includeBoxes?: boolean;
    includeConfidence?: boolean;
    recognitionLevel?: 'fast' | 'accurate';
    recognitionLanguages?: string[];
    usesLanguageCorrection?: boolean;
};
export type OcrBox = {
    x: number;
    y: number;
    width: number;
    height: number;
};
export type OcrWord = {
    text: string;
    box?: OcrBox;
    confidence?: number;
};
export type OcrLine = {
    text: string;
    box?: OcrBox;
    words?: OcrWord[];
    confidence?: number;
};
export type OcrBlock = {
    text: string;
    box?: OcrBox;
    lines?: OcrLine[];
};
export type OcrResult = {
    text: string;
    blocks?: OcrBlock[];
};
export declare function performOcr(frame: Frame, options?: OcrOptions): OcrResult | null;
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