import { PathOrURLStr } from "./Strings";
import { IDimensions } from "./IDimensions";
import { ImageData } from "./Canvases";
export declare type DataURL = string;
export declare type ImageType = 'image/png' | 'image/jpeg' | 'image/webp' | 'image/gif';
export interface ThumbnailerGenerateOpts {
    readonly pathOrURL: PathOrURLStr;
    readonly scaleBy: 'width' | 'height';
    readonly value: number;
}
export interface IThumbnail extends ImageData {
    readonly scaledDimensions: IDimensions;
    readonly nativeDimensions: IDimensions;
}
export interface Thumbnailer {
    readonly generate: (opts: ThumbnailerGenerateOpts) => IThumbnail;
}
export declare namespace Thumbnailers {
    interface ScaledDimensions {
        readonly scale: number;
        readonly width: number;
        readonly height: number;
    }
    function computeScaleDimensions(opts: ThumbnailerGenerateOpts, original: IDimensions): ScaledDimensions;
}