export declare enum ErrorMetric {
    Undefined = 0,
    Absolute = 1,
    Fuzz = 2,
    MeanAbsolute = 3,
    MeanErrorPerPixel = 4,
    MeanSquared = 5,
    NormalizedCrossCorrelation = 6,
    PeakAbsolute = 7,
    PeakSignalToNoiseRatio = 8,
    PerceptualHash = 9,
    RootMeanSquared = 10,
    StructuralSimilarity = 11,
    StructuralDissimilarity = 12
}
