/// <summary>
/// Estimates the apparent gamma of the tone curve using a least square fit to a
/// pure exponent expression in the ƒ(x)=x^𝛾.
/// </summary>
/// <param name="precision">The maximum standard deviation allowed on the residuals.</param>
/// <returns>The estimated gamma at the given precision, or -1 if the fitting has less precision.</returns>
/// <exception cref="ObjectDisposedException">
/// The ToneCurve has already been disposed.
/// </exception>
/// <remarks>
/// <para>
/// A value of 0.01 is a fair value for <paramref name="precision"/>. Set to a large number to fit any
/// curve no matter good the fit.
/// </para>
/// <para>
/// The 𝛾 is estimated at the given precision.
/// </para>
/// </remarks>
public double EstimateGamma(double precision)
{
EnsureNotClosed();
return(Interop.EstimateGamma(handle, precision));
}
