import type { AIVisionProcessingOptions } from './processor';
/**
 * Interface pour les images optimisées
 */
export interface ProcessedVisionImage {
    base64: string;
    optimizedSizeBytes: number;
    originalSizeBytes: number;
    compressionRatio: number;
    optimizations: string[];
}
/**
 * Gestionnaire d'optimisation d'images pour Vision LLM
 */
export declare class ImageOptimizer {
    /**
     * Traitement direct des images (mode fallback sans workers)
     */
    processDirect(filePath: string, options: AIVisionProcessingOptions): Promise<{
        optimizedImages: ProcessedVisionImage[];
        optimizationMetrics: {
            originalSizeMB: number;
            optimizedSizeMB: number;
            compressionRatio: number;
        };
    }>;
    /**
     * Optimisation Sharp directe (sans worker)
     */
    optimizeDirectly(imagePaths: string[], options: AIVisionProcessingOptions): Promise<ProcessedVisionImage[]>;
    private createTempDir;
    private cleanupTempDir;
    /**
     * Détermine les limites de résolution selon le modèle
     */
    private getMaxResolutionForProvider;
}