declare class HashSource {
    readonly url: URL;
    readonly width: number;
    readonly height: number;
    readonly hashSize: number;
    constructor(url: URL, hashSize?: number);
    calculateArea(): number;
}

interface HashableImageSouceConverter {
    convert(source: HashSource): Promise<HTMLImageElement | CanvasRenderingContext2D | Uint8ClampedArray>;
}

declare class DifferenceHashBuilder {
    private generator;
    private dHashConverter;
    constructor(dHashConverter?: HashableImageSouceConverter | null, document?: Document);
    build(url: URL, hashSize?: number): Promise<Hash>;
}

declare class Hash {
    readonly rawHash: string;
    constructor(rawHash: string);
    getHammingDistance(hash: this): number;
    toString(): string;
    private arrayChunk;
    private calcuateHexadecimal;
}

declare const HashKind: unique symbol;
type DHash = Hash & {
    readonly [HashKind]: 'dhash';
};
type AHash = Hash & {
    readonly [HashKind]: 'ahash';
};
type PHash = Hash & {
    readonly [HashKind]: 'phash';
};
type WHash = Hash & {
    readonly [HashKind]: 'whash';
};

declare class AverageHashBuilder {
    private converter;
    private generator;
    constructor(converter?: HashableImageSouceConverter | null, document?: Document);
    build(url: URL, hashSize?: number): Promise<AHash>;
}

declare class PerceptualHashBuilder {
    private converter;
    private generator;
    constructor(converter?: HashableImageSouceConverter | null, document?: Document);
    build(url: URL, hashSize?: number, highfreqFactor?: number): Promise<PHash>;
}

declare class WaveletHashBuilder {
    private converter;
    private generator;
    constructor(converter?: HashableImageSouceConverter | null, document?: Document);
    build(url: URL, hashSize?: number, imageScale?: number | null): Promise<WHash>;
}

declare function HexadecimalToHash(source: string): Hash;

export { type AHash, AverageHashBuilder, type DHash, DifferenceHashBuilder, Hash, HexadecimalToHash, type PHash, PerceptualHashBuilder, type WHash, WaveletHashBuilder };