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-# coding: utf-8
-# /*##########################################################################
-#
-# Copyright (c) 2004-2018 European Synchrotron Radiation Facility
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-#
-# ###########################################################################*/
-"""
-:mod:`silx.gui.plot.actions.medfilt` provides a set of QAction to apply filter
-on data contained in a :class:`.PlotWidget`.
-
-The following QAction are available:
-
-- :class:`MedianFilterAction`
-- :class:`MedianFilter1DAction`
-- :class:`MedianFilter2DAction`
-
-"""
-
-from __future__ import division
-
-__authors__ = ["V.A. Sole", "T. Vincent", "P. Knobel"]
-__license__ = "MIT"
-
-__date__ = "10/10/2018"
-
-from .PlotToolAction import PlotToolAction
-from silx.gui.widgets.MedianFilterDialog import MedianFilterDialog
-from silx.math.medianfilter import medfilt2d
-import logging
-
-_logger = logging.getLogger(__name__)
-
-
-class MedianFilterAction(PlotToolAction):
- """QAction to plot the pixels intensities diagram
-
- :param plot: :class:`.PlotWidget` instance on which to operate
- :param parent: See :class:`QAction`
- """
-
- def __init__(self, plot, parent=None):
- PlotToolAction.__init__(self,
- plot,
- icon='median-filter',
- text='median filter',
- tooltip='Apply a median filter on the image',
- parent=parent)
- self._originalImage = None
- self._legend = None
- self._filteredImage = None
-
- def _createToolWindow(self):
- popup = MedianFilterDialog(parent=self.plot)
- popup.sigFilterOptChanged.connect(self._updateFilter)
- return popup
-
- def _connectPlot(self, window):
- PlotToolAction._connectPlot(self, window)
- self.plot.sigActiveImageChanged.connect(self._updateActiveImage)
- self._updateActiveImage()
-
- def _disconnectPlot(self, window):
- PlotToolAction._disconnectPlot(self, window)
- self.plot.sigActiveImageChanged.disconnect(self._updateActiveImage)
-
- def _updateActiveImage(self):
- """Set _activeImageLegend and _originalImage from the active image"""
- self._activeImageLegend = self.plot.getActiveImage(just_legend=True)
- if self._activeImageLegend is None:
- self._originalImage = None
- self._legend = None
- else:
- self._originalImage = self.plot.getImage(self._activeImageLegend).getData(copy=False)
- self._legend = self.plot.getImage(self._activeImageLegend).getLegend()
-
- def _updateFilter(self, kernelWidth, conditional=False):
- if self._originalImage is None:
- return
-
- self.plot.sigActiveImageChanged.disconnect(self._updateActiveImage)
- filteredImage = self._computeFilteredImage(kernelWidth, conditional)
- self.plot.addImage(data=filteredImage,
- legend=self._legend,
- replace=True)
- self.plot.sigActiveImageChanged.connect(self._updateActiveImage)
-
- def _computeFilteredImage(self, kernelWidth, conditional):
- raise NotImplementedError('MedianFilterAction is a an abstract class')
-
- def getFilteredImage(self):
- """
- :return: the image with the median filter apply on"""
- return self._filteredImage
-
-
-class MedianFilter1DAction(MedianFilterAction):
- """Define the MedianFilterAction for 1D
-
- :param plot: :class:`.PlotWidget` instance on which to operate
- :param parent: See :class:`QAction`
- """
- def __init__(self, plot, parent=None):
- MedianFilterAction.__init__(self,
- plot,
- parent=parent)
-
- def _computeFilteredImage(self, kernelWidth, conditional):
- assert(self.plot is not None)
- return medfilt2d(self._originalImage,
- (kernelWidth, 1),
- conditional)
-
-
-class MedianFilter2DAction(MedianFilterAction):
- """Define the MedianFilterAction for 2D
-
- :param plot: :class:`.PlotWidget` instance on which to operate
- :param parent: See :class:`QAction`
- """
- def __init__(self, plot, parent=None):
- MedianFilterAction.__init__(self,
- plot,
- parent=parent)
-
- def _computeFilteredImage(self, kernelWidth, conditional):
- assert(self.plot is not None)
- return medfilt2d(self._originalImage,
- (kernelWidth, kernelWidth),
- conditional)