import { type VirtualViewportPixelAccessor, type Viewport, type HasBackgroundColor, type HasAverageColor } from "../pixel-accessor";
import type { Color } from "../types";
/**
 * Image adapter interface.
 */
export interface ImageAdapter<ResourceType> extends VirtualViewportPixelAccessor, HasBackgroundColor, HasAverageColor {
    /**
     * Sets image virtual viewport.
     *
     * @param viewport
     */
    setViewport(viewport: Viewport): void;
    /**
     * Sets image background color.
     *
     * @param color
     */
    setBackgroundColor(color: Color): void;
    /**
     * Returns new blank image with given virtual viewport.
     *
     * @param viewport
     */
    getBlank(viewport: Viewport): ImageAdapter<ResourceType>;
    /**
     * Scales image and its virtual viewport.
     *
     * @param scale
     */
    scale(scale: number): ImageAdapter<ResourceType>;
    /**
     * Returns underlying image resource.
     */
    getResource(): ResourceType;
    /**
     * Method called after distortion process to synchronize distorted image data with underlying image resource if needed.
     */
    commit(): void;
}
/**
 * Checks if passed object implements ImageAdapter interface.
 *
 * @param obj
 */
export declare function isImageAdapter(obj: unknown): obj is ImageAdapter<unknown>;