mantidimaging.core.operations.remove_stripe_filtering.remove_stripe_filtering module

class mantidimaging.core.operations.remove_stripe_filtering.remove_stripe_filtering.RemoveStripeFilteringFilter

Bases: mantidimaging.core.operations.base_filter.BaseFilter

Stripe and ring artifact removal. Combination of algorithm 2 and algorithm 3 in Vo et al., Optics Express 28396 (2018). Removing stripes using the filtering and sorting technique.

Source: https://github.com/algotom/algotom

Intended to be used on: Sinograms

When: If stripes artifacts are present that have not been removed with outliers + flat-fielding the projections

Caution: Horizontal stripes caused by changes in image intensity (pixel values) should be fixed by ROI Normalisation instead!

static execute_wrapper(sigma: PyQt5.QtWidgets.QSpinBox, size: PyQt5.QtWidgets.QSpinBox, window_dim: PyQt5.QtWidgets.QSpinBox, filtering_dim: PyQt5.QtWidgets.QSpinBox)

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(images: mantidimaging.core.data.images.Images, sigma=3, size=21, window_dim=1, filtering_dim=1, cores=None, chunksize=None, progress=None)

Executes the filter algorithm on a given set of image data with the given parameters.

Parameters

• data – the image data to apply the filter to

• kwargs – any additional arguments which the specific filter uses

Returns

the image data after applying the filter

filter_name = 'Remove stripes with filtering'

static group_name() → mantidimaging.core.operations.base_filter.FilterGroup

link_histograms = True

static register_gui(form, on_change, view)

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