SimpleITK  
Python/ExtractSlice.py
1#!/usr/bin/env python
2# =========================================================================
3#
4# Copyright NumFOCUS
5#
6# Licensed under the Apache License, Version 2.0 (the "License");
7# you may not use this file except in compliance with the License.
8# You may obtain a copy of the License at
9#
10# http://www.apache.org/licenses/LICENSE-2.0.txt
11#
12# Unless required by applicable law or agreed to in writing, software
13# distributed under the License is distributed on an "AS IS" BASIS,
14# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15# See the License for the specific language governing permissions and
16# limitations under the License.
17#
18# =========================================================================
19
20""" An example script using SimpleITK's ExtractImageFilter to extact a slice from a 3D image. """
21
22import sys
23import os
24import SimpleITK as sitk
25
26if len(sys.argv) != 4:
27 print(f"Usage: {sys.argv[0]} inputImage sliceNumber outputImage")
28 sys.exit(1)
29
30zslice = int(sys.argv[2])
31
32inputImage = sitk.ReadImage(str(sys.argv[1]))
33
34size = list(inputImage.GetSize())
35size[2] = 0
36
37index = [0, 0, zslice]
38
39Extractor = sitk.ExtractImageFilter()
40Extractor.SetSize(size)
41Extractor.SetIndex(index)
42
43sitk.WriteImage(Extractor.Execute(inputImage), str(sys.argv[3]))
44
45if "SITK_NOSHOW" not in os.environ:
46 sitk.Show(Extractor.Execute(inputImage))
Decrease the image size by cropping the image to the selected region bounds.
SITKIO_EXPORT Image ReadImage(const PathType &filename, PixelIDValueEnum outputPixelType=sitkUnknown, const std::string &imageIO="")
ReadImage is a procedural interface to the ImageFileReader class which is convenient for most image r...
void SITKIO_EXPORT Show(const Image &image, const std::string &title="", const bool debugOn=ProcessObject::GetGlobalDefaultDebug())
SITKIO_EXPORT void WriteImage(const Image &image, const PathType &fileName, bool useCompression=false, int compressionLevel=-1)
WriteImage is a procedural interface to the ImageFileWriter. class which is convenient for many image...