import { Image } from '../Image.js';
import type { BorderType } from '../utils/interpolateBorder.js';
export interface ExtendBordersOptions {
    /**
     * Left and right border thickness.
     */
    horizontal: number;
    /**
     *Top and bottom border thickness.
     */
    vertical: number;
    /**
     * Specify how the borders should be handled.
     * @default `'reflect101'`
     */
    borderType?: BorderType;
    /**
     * Value of the border if BorderType is 'constant'.
     * @default `0`
     */
    borderValue?: number;
}
/**
 * Extend the borders of an image according to the given border type.
 * @param image - Image to extend.
 * @param options - Options.
 * @returns A copy of the image with extended borders.
 */
export declare function extendBorders(image: Image, options: ExtendBordersOptions): Image;
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