/**
 * Excel Image Extractor
 * Extracts embedded images from Excel files using exceljs
 *
 * @module @f5/cli/core/excel-image-extractor
 * @version 1.0.0
 */
export interface ExtractedImage {
    id: string;
    filename: string;
    extension: string;
    path: string;
    relativePath: string;
    sheetName: string;
    cellRef?: string;
    range?: {
        tl: {
            col: number;
            row: number;
        };
        br: {
            col: number;
            row: number;
        };
    };
    dimensions?: {
        width: number;
        height: number;
    };
    base64?: string;
}
export interface ImageExtractionResult {
    success: boolean;
    images: ExtractedImage[];
    outputDir: string;
    errors: string[];
}
export interface ImageExtractionOptions {
    outputDir?: string;
    prefix?: string;
    includeBase64?: boolean;
    organizeBySheet?: boolean;
}
export declare class ExcelImageExtractor {
    private workbook;
    private filePath;
    private options;
    constructor(filePath: string, options?: ImageExtractionOptions);
    /**
     * Extract all images from the Excel file
     */
    extract(): Promise<ImageExtractionResult>;
    /**
     * Extract images from a specific worksheet
     */
    private extractFromSheet;
    /**
     * Convert column/row numbers to cell reference (e.g., A1, B2)
     */
    private colRowToRef;
    /**
     * Get standardized image extension
     */
    private getImageExtension;
    /**
     * Generate markdown image references
     */
    generateMarkdownReferences(images: ExtractedImage[]): string;
    /**
     * Generate image mapping for document converter
     */
    generateImageMapping(images: ExtractedImage[]): Map<string, string>;
}
/**
 * Quick extraction function
 */
export declare function extractExcelImages(filePath: string, options?: ImageExtractionOptions): Promise<ImageExtractionResult>;
/**
 * Check if file might contain images
 */
export declare function hasEmbeddedImages(filePath: string): Promise<boolean>;