import { Viewport } from "../pixel-accessor";
import type { ReversePixelMapper } from "./ReversePixelMapper";
export interface BestFitReversePixelMapper extends ReversePixelMapper {
    /**
     * Flags that distortion forces best fit for its performing.
     */
    readonly forceBestFit?: boolean;
    /**
     * Returns calculated best-fit viewport for given source image viewport.
     *
     * @param viewport Source image viewport.
     */
    getBestFitViewport(viewport: Viewport): Viewport;
}
/**
 * Checks if passed object implements BestFitReversePixelMapper interface.
 *
 * @param obj
 */
export declare function isBestFitReversePixelMapper(obj: unknown): obj is BestFitReversePixelMapper;