background_deviation_box

ccdproc.background_deviation_box(data, bbox)[source]

Determine the background deviation with a box size of bbox. The algorithm steps through the image and calculates the deviation within each box. It returns an array with the pixels in each box filled with the deviation value.

Parameters
datanumpy.ndarray or numpy.ma.MaskedArray

Data to measure background deviation.

bboxint

Box size for calculating background deviation.

Returns
backgroundnumpy.ndarray or numpy.ma.MaskedArray

An array with the measured background deviation in each pixel.

Raises
ValueError

A value error is raised if bbox is less than 1.