/**
 * Defines a type for the supported output formats of the Sobel operator.
 */
export type OutputFormat = 'magnitude' | 'x' | 'y' | 'direction';
/**
 * Defines the supported kernel sizes for the Sobel operator.
 */
export type KernelSize = 3 | 5;
/**
 * Platform-agnostic interface for image data
 * Compatible with both browser's ImageData and Node.js buffers
 */
export interface ImageDataLike {
    width: number;
    height: number;
    data: Uint8ClampedArray;
    colorSpace?: string;
}
/**
 * Factory interface for creating ImageData objects
 */
export interface ImageDataFactory {
    create(data: Uint8ClampedArray, width: number, height: number): ImageDataLike;
}
/**
 * Browser-specific ImageData factory
 */
export declare class BrowserImageDataFactory implements ImageDataFactory {
    create(data: Uint8ClampedArray, width: number, height: number): ImageDataLike;
}
/**
 * Node.js-specific ImageData factory
 */
export declare class NodeImageDataFactory implements ImageDataFactory {
    create(data: Uint8ClampedArray, width: number, height: number): ImageDataLike;
}
/**
 * Get the appropriate ImageData factory for the current environment
 */
export declare function getImageDataFactory(): ImageDataFactory;