@julesl23/s5js/dist/src/media/thumbnail/generator.d.ts

Enhanced TypeScript SDK for S5 decentralized storage with path-based API, media processing, and directory utilities

import type { ThumbnailOptions, ThumbnailResult } from '../types.js';
/**
 * ThumbnailGenerator provides high-quality thumbnail generation
 * with multiple processing strategies and smart features
 */
export declare class ThumbnailGenerator {
    /**
     * Generate a thumbnail from an image blob
     */
    static generateThumbnail(blob: Blob, options?: ThumbnailOptions): Promise<ThumbnailResult>;
    /**
     * Generate thumbnail using Canvas API
     */
    private static generateWithCanvas;
    /**
     * Calculate thumbnail dimensions maintaining aspect ratio if requested
     */
    private static calculateDimensions;
    /**
     * Calculate smart crop region using edge detection
     */
    private static calculateSmartCrop;
    /**
     * Calculate center crop (fallback for smart crop)
     */
    private static centerCrop;
    /**
     * Calculate energy map using Sobel edge detection
     */
    private static calculateEnergyMap;
    /**
     * Find region with highest energy (most interesting content)
     */
    private static findBestRegion;
    /**
     * Optimize thumbnail to meet target size by adjusting quality
     */
    private static optimizeToTargetSize;
    /**
     * Re-encode blob with specified quality
     */
    private static reencodeWithQuality;
}
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