/// <reference types="node" />
export declare class Image {
    private prefix;
    private thumbnailCache;
    private thumbnailHash;
    private blankCache;
    private blankHash;
    private tmp;
    constructor();
    private mktemp;
    private dpx2png;
    thumbnail(path: string, width: number, height: number): Promise<Buffer>;
    blank(width: number, height: number): Promise<Buffer>;
}