calcrms

interferopy.tools.calcrms(arr, fitgauss=False, around_zero=True, clip_sigma=3, maxiter=20)

Calculate rms by iteratively disregarding outlier pixels (beyond clip_sigma x rms values).

Parameters

• arr – Input array.

• fitgauss – If True, Gaussian will be fitted onto the distribution of negative pixels.

• around_zero – Assume no systematic offsets, i.e., noise oscillates around zero.

• clip_sigma – Clip values beyond these many sigmas (in both positive and negative directions).

• maxiter – Maximum number of iterations to perform.

Returns

rms or, if fitgauss is Truem rms and Gaussian sigma