myimagelib.corrLib.df2_

myimagelib.corrLib.df2_(img_stack, boxsize=None, size_min=5, step=250)

Compute number fluctuations of an image stack (3D np.array, frame*h*w)

Parameters

• img_stack – a stack of image, a 3D array

• boxsize – a list-like of integers, specify the subsystem size to look at. If None, generate a log spaced array within (size_min, L/2) (pixels), with 100 points

• size_min – the smallest box size

• step – step used when dividing image into windows

Returns

DataFrame of n and d, where n is box area (px^2) and d is total number fluctuations (box_area*dI)