#! /usr/bin/env python
# -*- coding: utf-8 -*-
#
# author: Avinash Kori
# contact: koriavinash1@gmail.com
# MIT License
# Copyright (c) 2020 Avinash Kori
# 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.
import os
import tempfile
from time import time
import pydicom
import datetime
from pydicom.dataset import Dataset, FileDataset
import numpy as np
[docs]class dcm_loader(object):
"""
"""
def __init__(self):
pass
[docs] def load_vol(self, path):
"""
path : patient data path
returns numpy array of patient data
"""
self.patient = pydicom.dcmread(path)
return self.patient.pixel_array
[docs] def write_vol(self, path, vol):
"""
path : path to write the data
vol : modifient volume
return: True or False based on saving of volume
"""
suffix = '.dcm'
filename_little_endian = tempfile.NamedTemporaryFile(suffix=suffix).name
filename_big_endian = tempfile.NamedTemporaryFile(suffix=suffix).name
file_meta = Dataset()
ds = FileDataset(filename_little_endian, {},
file_meta=file_meta, preamble=b"\0" * 128)
ds.PatientName = self.patient.PatientName
ds.PatientID = self.patient.PatientID
ds.is_little_endian = self.patient.is_little_endian
ds.is_implicit_VR = self.patient.is_implicit_VR
# Set creation date/time
dt = datetime.datetime.now()
ds.ContentDate = dt.strftime('%Y%m%d')
timeStr = dt.strftime('%H%M%S.%f') # long format with micro seconds
ds.ContentTime = timeStr
ds.PixelData = vol.tostring()
try:
ds.save_as(filename_little_endian)
return True
except:
return False