import { ImageSize } from "../../../types";
export declare type ImageComparisonOptions = {
    normalizationStrategy: NormalizationStrategy;
};
export declare type ImageComparisonResult = {
    similarity: number;
    originalExpectedPath: string;
    originalExpectedSize: ImageSize;
    originalActualPath: string;
    originalActualSize: ImageSize;
    normalizedExpectedPath: string;
    normalizedActualPath: string;
    normalizedSize: ImageSize;
    diffImagePath: string;
    overlapImagePath: string;
};
export declare type NormalizationStrategy = "expand-bottom-right" | "expand-keeping-centered";
export declare function compareImages(expectedPath: string, actualPath: string, options?: Partial<ImageComparisonOptions>): Promise<ImageComparisonResult>;