import type { Image } from '../Image.js';
import type { CropAlphaOptions } from './operations.types.js';
/**
 * Crops the image based on the alpha channel
 * This removes lines and columns where the alpha channel is lower than a threshold value.
 * @param image - Image to process.
 * @param options - Crop alpha options.
 * @returns The cropped image.
 */
export declare function cropAlpha(image: Image, options?: CropAlphaOptions): Image;
//# sourceMappingURL=cropAlpha.d.ts.map