mantidimaging.core.operations.nan_removal.nan_removal module

class mantidimaging.core.operations.nan_removal.nan_removal.NaNRemovalFilter

Bases: BaseFilter

Replaces the NaNs with a specified value or the median of neighbouring pixels.

Intended to be used on: Projections

When: To remove NaNs before reconstruction.

Note that the median method cannot remove continuous blocks of NaNs.

MODES = ['Constant', 'Median']

static compute_constant_function(i: int, array: ndarray, params: dict)

static compute_median_function(i: int, array: ndarray, params: dict)

static execute_wrapper(mode_field=None, replace_value_field=None)

Should construct a partial call to _filter_func using values taken from the widgets passed to this function as kwargs. :param kwargs: widgets which contain values required for _filter_func. :return: a partial call to _filter_func using parameters taken from the input widgets.

static filter_func(data, replace_value=None, mode_value='Constant', progress=None) → ImageStack

Parameters:

• data – The input data.

• mode_value – Values to replace NaNs with. One of [“Constant”, “Median”]

• replace_value – In constant mode, the value to replace NaNs with.

• progress – The optional Progress object.

Returns:

The ImageStack object with the NaNs replaced.

filter_name = 'NaN Removal'

link_histograms = True

static register_gui(form: QFormLayout, on_change: Callable, view: BaseMainWindowView) → dict[str, QWidget]

Adds any required input widgets to the given form and returns references to them.

The return values should be in a dict which can be unpacked as kwargs for a call to the operations execute_wrapper.

Parameters:

• view –

• form – the layout to create input widgets in

• on_change – the filter view action to be bound to all created inputs

Returns:

the widgets bound as kwargs which are needed to call execute_wrapper

mantidimaging.core.operations.nan_removal.nan_removal.enable_correct_fields_only(mode_field, replace_value_field)