Is get_selected_pixels from DVR equivalent to zero_suppression_tailcut_dilation?

[vuillaut]

Function get_selected_pixels selects pixels above T pixels and keeps N rounds of pixels around.
Could we use the existing function zero_suppression_tailcut_dilation with parameters

number_of_dilation = 1
picture_thresh = 8
boundary_thresh = -inf
keep_isolated_pixels = True
min_number_picture_neighbors = 0

?

[moralejo]

I think boundary should be +inf, and then, to keep the same behaviour, one would have to keep the whole camera if the number of surviving pixels is above a threshold (500 by default).
The algo is very simple, so I am not sure it pays to use more generic functions - with the additional calls, wouldn't it be slower?