/**
 * LZW (Lempel-Ziv-Welch) compression for GIF encoding
 */
/**
 * Compresses data using LZW algorithm
 */
export declare function compressLZW(data: Uint8Array, initialCodeSize: number): Uint8Array;
/**
 * Decompresses LZW-compressed data
 */
export declare function decompressLZW(compressedData: Uint8Array, initialCodeSize: number): Uint8Array;
/**
 * Validates LZW parameters
 */
export declare function validateLZWParams(data: Uint8Array, codeSize: number): void;