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# 

# LSST Data Management System 

# Copyright 2008-2017 AURA/LSST. 

# 

# This product includes software developed by the 

# LSST Project (http://www.lsst.org/). 

# 

# This program is free software: you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# This program is distributed in the hope that it will be useful, 

# but WITHOUT ANY WARRANTY; without even the implied warranty of 

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

# You should have received a copy of the LSST License Statement and 

# the GNU General Public License along with this program. If not, 

# see <https://www.lsstcorp.org/LegalNotices/>. 

# 

 

import unittest 

import pickle 

import os 

 

import lsst.utils.tests 

import lsst.afw.image as afwImage 

import lsst.ip.isr as ipIsr 

 

 

class BrighterFatterTestCases(lsst.utils.tests.TestCase): 

 

def setUp(self): 

self.filename = "bf_kernel.pkl" 

kernel = afwImage.ImageF(17, 17) 

kernel[9, 9, afwImage.LOCAL] = 1 

kernelPickleString = kernel.getArray().dumps() 

# kernel.getArray().dump(self.filename) triggers an "unclosed file" warning with numpy 1.13.1 

with open(self.filename, 'wb') as f: 

f.write(kernelPickleString) 

 

def tearDown(self): 

os.unlink(self.filename) 

 

def testBrighterFatterInterface(self): 

"""Test brighter fatter correction interface using a delta function kernel on a flat image""" 

 

image = afwImage.ImageF(100, 100) 

image.set(100) 

ref_image = afwImage.ImageF(image, True) 

 

mi = afwImage.makeMaskedImage(image) 

exp = afwImage.makeExposure(mi) 

 

isrTask = ipIsr.IsrTask() 

with open(self.filename, 'rb') as f: 

bfKernel = pickle.load(f) 

 

isrTask.brighterFatterCorrection(exp, bfKernel, 5, 100, False) 

self.assertImagesEqual(ref_image, image) 

 

 

class MemoryTester(lsst.utils.tests.MemoryTestCase): 

pass 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

72 ↛ 73line 72 didn't jump to line 73, because the condition on line 72 was never trueif __name__ == "__main__": 

lsst.utils.tests.init() 

unittest.main()