# Copyright 2014 Diamond Light Source Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
.. module:: base_dezinger_sinogram
:platform: Unix
:synopsis: A base class for CPU/GPU sinogram dezinger
.. moduleauthor::Daniil Kazantsev <scientificsoftware@diamond.ac.uk>
"""
import numpy as np
from savu.plugins.plugin import Plugin
[docs]class BaseDezingerSinogram(Plugin):
def __init__(self, name='BaseDezingerSinogram'):
super(BaseDezingerSinogram, self).__init__(name)
self.frame_limit = 1
[docs] def setup(self):
in_dataset, out_dataset = self.get_datasets()
out_dataset[0].create_dataset(in_dataset[0])
self.std_dev = None
in_pData, out_pData = self.get_plugin_datasets()
in_pData[0].plugin_data_setup('SINOGRAM', self.get_max_frames())
out_pData[0].plugin_data_setup('SINOGRAM', self.get_max_frames())
[docs] def set_filter_padding(self, in_data, out_data):
# kernel size must be odd
ksize = self.parameters['kernel_size']
self.kernel_size = ksize+1 if ksize % 2 == 0 else ksize
if self.parameters['kernel_dimension'] == '3D':
in_data = in_data[0]
self.pad = (self.kernel_size - 1) // 2
self.data_size = in_data.get_shape()
in_data.padding = {'pad_multi_frames': self.pad}
out_data[0].padding = {'pad_multi_frames': self.pad}
[docs] def get_max_frames(self):
""" Setting nFrames to multiple with an upper limit of 4 frames. """
return ['multiple', self.frame_limit]