python-fabio 0.3.0+dfsg-1build1 / usr / lib / python2.7 / dist-packages / fabio / test / testtifimage.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#    Project: Fable Input Output
#             https://github.com/kif/fabio
#
#    Copyright (C) European Synchrotron Radiation Facility, Grenoble, France
#
#    Principal author:       Jérôme Kieffer (Jerome.Kieffer@ESRF.eu)
#
#    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 GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
"""Tiff Unit tests"""

from __future__ import print_function, with_statement, division, absolute_import
import unittest
import sys
import os

if __name__ == '__main__':
    import pkgutil
    __path__ = pkgutil.extend_path([os.path.dirname(__file__)], "fabio.test")
from .utilstest import UtilsTest

logger = UtilsTest.get_logger(__file__)
fabio = sys.modules["fabio"]


class TestTif(unittest.TestCase):
    # filename dim1 dim2 min max mean stddev
    TESTIMAGES = """
    Feb09-bright-00.300s_WAXS.bz2 1042 1042 0 65535 8546.6414 1500.4198
    Feb09-bright-00.300s_WAXS.gz 1042 1042 0 65535 8546.6414 1500.4198
    Feb09-bright-00.300s_WAXS 1042 1042 0 65535 8546.6414 1500.4198
    
    """

    def test_read(self):
        """
        Test the reading of Mar345 images
        """
        for line in self.TESTIMAGES.split('\n'):
            vals = line.strip().split()
            if not vals:
                continue
            name = vals[0]
            logger.debug("Processing: %s" % name)
            dim1, dim2 = [int(x) for x in vals[1:3]]
            mini, maxi, mean, stddev = [float(x) for x in vals[3:]]
            obj = fabio.tifimage.TifImage()
            obj.read(UtilsTest.getimage(name))

            self.assertAlmostEqual(mini, obj.getmin(), 2, "getmin [%s,%s]" % (mini, obj.getmin()))
            self.assertAlmostEqual(maxi, obj.getmax(), 2, "getmax [%s,%s]" % (maxi, obj.getmax()))
            self.assertAlmostEqual(mean, obj.getmean(), 2, "getmean [%s,%s]" % (mean, obj.getmean()))
            self.assertAlmostEqual(stddev, obj.getstddev(), 2, "getstddev [%s,%s]" % (stddev, obj.getstddev()))
            self.assertEqual(dim1, obj.dim1, "dim1")
            self.assertEqual(dim2, obj.dim2, "dim2")


class testtifimage_pilatus(unittest.TestCase):
    def setUp(self):
        self.fn = {}
        for i in ["pilatus2M.tif", "pilatus2M.edf"]:
            self.fn[i] = UtilsTest.getimage(i + ".bz2")
        for i in self.fn:
            assert os.path.exists(self.fn[i])

    def test1(self):
        """
        Testing pilatus tif bug
        """
        o1 = fabio.open(self.fn["pilatus2M.tif"]).data
        o2 = fabio.open(self.fn["pilatus2M.edf"]).data
        self.assertEqual(abs(o1 - o2).max(), 0.0)


class testtifimage_packbits(unittest.TestCase):
    def setUp(self):
        self.fn = {}
        for i in ["oPPA_5grains_0001.tif", "oPPA_5grains_0001.edf"]:
            self.fn[i] = UtilsTest.getimage(i + ".bz2")
        for i in self.fn:
            assert os.path.exists(self.fn[i])

    def test1(self):
        """
        Testing packbit comressed data tif bug
        """
        o1 = fabio.open(self.fn["oPPA_5grains_0001.tif"]).data
        o2 = fabio.open(self.fn["oPPA_5grains_0001.edf"]).data
        self.assertEqual(abs(o1 - o2).max(), 0.0)


class testtifimage_fit2d(unittest.TestCase):
    def setUp(self):
        self.fn = {}
        for i in ["fit2d.tif", "fit2d.edf"]:
            self.fn[i] = UtilsTest.getimage(i + ".bz2")
        for i in self.fn:
            assert os.path.exists(self.fn[i])

    def test1(self):
        """
        Testing packbit comressed data tif bug
        """
        o1 = fabio.open(self.fn["fit2d.tif"]).data
        o2 = fabio.open(self.fn["fit2d.edf"]).data
        self.assertEqual(abs(o1 - o2).max(), 0.0)


class testtifimage_a0009(unittest.TestCase):
    """
    test image from ??? with this error 
a0009.tif TIFF 1024x1024 1024x1024+0+0 16-bit Grayscale DirectClass 2MiB 0.000u 0:00.010
identify: a0009.tif: invalid TIFF directory; tags are not sorted in ascending order. `TIFFReadDirectory' @ tiff.c/TIFFWarnings/703.
identify: a0009.tif: TIFF directory is missing required "StripByteCounts" field, calculating from imagelength. `TIFFReadDirectory' @ tiff.c/TIFFWarnings/703.

    """
    def setUp(self):
        self.fn = {}
        for i in ["a0009.tif", "a0009.edf"]:
            self.fn[i] = UtilsTest.getimage(i + ".bz2")[:-4]
        for i in self.fn:
            assert os.path.exists(self.fn[i])

    def test1(self):
        """
        Testing packbit comressed data tif bug
        """
        o1 = fabio.open(self.fn["a0009.tif"]).data
        o2 = fabio.open(self.fn["a0009.edf"]).data
        self.assertEqual(abs(o1 - o2).max(), 0.0)


class testgziptif(unittest.TestCase):
    def setUp(self):
        self.unzipped = UtilsTest.getimage("oPPA_5grains_0001.tif.bz2")[:-4]
        self.zipped = self.unzipped + ".gz"
        assert os.path.exists(self.zipped)
        assert os.path.exists(self.unzipped)

    def test1(self):
        o1 = fabio.open(self.zipped)
        o2 = fabio.open(self.unzipped)
        self.assertEqual(o1.data[0, 0], 10)
        self.assertEqual(o2.data[0, 0], 10)


class testtif_rect(unittest.TestCase):
    def setUp(self):
        self.fn = UtilsTest.getimage("testmap1_0002.tif.bz2")[:-4]

    def test1(self):
        for ext in ["", ".gz", ".bz2"]:
            o1 = fabio.open(self.fn + ext)
            self.assertEqual(o1.data.shape, (100, 120))


def suite():
    testsuite = unittest.TestSuite()
    testsuite.addTest(TestTif("test_read"))
    testsuite.addTest(testtifimage_packbits("test1"))
    testsuite.addTest(testtifimage_pilatus("test1"))
    testsuite.addTest(testtifimage_fit2d("test1"))
    testsuite.addTest(testgziptif("test1"))
    testsuite.addTest(testtif_rect("test1"))
    testsuite.addTest(testtifimage_a0009("test1"))
    return testsuite

if __name__ == '__main__':
    runner = unittest.TextTestRunner()
    runner.run(suite())