jbmedian

sofia_redux.instruments.forcast.jbclean.jbmedian(data, width=4, bar_spacing=16, mode='wrap')

Remove jailbars using the median of correlated columns

Replace the jailbar pattern with the median of correlated columns (every 16). Large scale variations are removed by subtracting an image smoothed with a 16-pixel box.

Parameters:

datanumpy.ndarray

(nrow, ncol) input data array

bar_spacingint, optional

known jailbar spacing between columns

widthint, optional

median filtering will be applied along rows using a kernel width of bar_spacing + width. An additional pixel will be added to make the kernel odd sized if necessary.

modestr, optional

Specifies the edge handling mode for median filter.

Returns:

numpy.ndarray

(nrow, ncol) cleaned data array