export interface IImageInfo {
    data: string | Uint8Array<ArrayBuffer>;
    width: number;
    id?: string;
    height: number;
}
export interface IImageUtils {
    getImageInfo(url: string): Promise<IImageInfo>;
    applyImageFit(imageInfo: IImageInfo, imageFit: 'cover' | 'fill' | 'contain', targetWidth: number, targetHeight: number): Promise<IImageInfo>;
    clear(): void;
}
export declare class BaseImageUtils implements IImageUtils {
    private hash;
    private imageId;
    protected getImageId(): string;
    protected _getImageInfo(url: string): Promise<IImageInfo>;
    getImageInfo(url: string): Promise<IImageInfo>;
    applyImageFit(imageInfo: IImageInfo, imageFit: 'cover' | 'fill' | 'contain', targetWidth: number, targetHeight: number): Promise<IImageInfo>;
    protected get emptyImage(): IImageInfo;
    clear(): void;
}
export declare function getImageUtils(): IImageUtils;
export declare function registerImageUtils(val: IImageUtils): void;