import { z } from 'zod';
/**
 * References different types of hashes that can be
 * used to compare how similar two images are.
 */
export declare const HashesSchema: z.ZodObject<{
    /**
     * The perceptual hash of the image.
     * @see https://en.wikipedia.org/wiki/Perceptual_hashing
     */
    perceptual: z.ZodOptional<z.ZodString>;
    /**
     * The average hash of the image.
     * @see https://www.hackerfactor.com/blog/index.php?/archives/432-Looks-Like-It.html
     */
    average: z.ZodOptional<z.ZodString>;
    /**
     * The median hash of the image.
     * @see https://content-blockchain.org/research/testing-different-image-hash-functions/
     */
    median: z.ZodOptional<z.ZodString>;
    /**
     * The difference hash of the image.
     * @see https://github.com/Tom64b/dHash
     */
    difference: z.ZodOptional<z.ZodString>;
    /**
     * The crop-resistant hash of the image.
     * @see https://ieeexplore.ieee.org/document/6980335
     */
    cropResistant: z.ZodOptional<z.ZodString>;
    /**
     * The wavelet hash of the image.
     * @see https://fullstackml.com/wavelet-image-hash-in-python-3504fdd282b5
     */
    wavelet: z.ZodOptional<z.ZodString>;
    /**
     * The color hash of the image.
     */
    color: z.ZodOptional<z.ZodString>;
}, "strip", z.ZodTypeAny, {
    perceptual?: string | undefined;
    average?: string | undefined;
    median?: string | undefined;
    difference?: string | undefined;
    cropResistant?: string | undefined;
    wavelet?: string | undefined;
    color?: string | undefined;
}, {
    perceptual?: string | undefined;
    average?: string | undefined;
    median?: string | undefined;
    difference?: string | undefined;
    cropResistant?: string | undefined;
    wavelet?: string | undefined;
    color?: string | undefined;
}>;
export type Hashes = z.infer<typeof HashesSchema>;