Coverage for tests/test_PixelFlags.py: 14%
117 statements
« prev ^ index » next coverage.py v7.4.4, created at 2024-03-29 03:07 -0700
« prev ^ index » next coverage.py v7.4.4, created at 2024-03-29 03:07 -0700
1# This file is part of meas_base.
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (https://www.lsst.org).
6# See the COPYRIGHT file at the top-level directory of this distribution
7# for details of code ownership.
8#
9# This program is free software: you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation, either version 3 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program. If not, see <https://www.gnu.org/licenses/>.
22import unittest
24import numpy as np
26import lsst.geom
27import lsst.utils.tests
28import lsst.meas.base.tests
31class PixelFlagsTestCase(lsst.meas.base.tests.AlgorithmTestCase, lsst.utils.tests.TestCase):
33 def setUp(self):
34 self.center = lsst.geom.Point2D(50.1, 49.8)
35 self.bbox = lsst.geom.Box2I(lsst.geom.Point2I(-20, -30),
36 lsst.geom.Extent2I(140, 160))
37 self.dataset = lsst.meas.base.tests.TestDataset(self.bbox)
39 def testNoFlags(self):
40 self.dataset.addSource(100000.0, self.center)
41 task = self.makeSingleFrameMeasurementTask("base_PixelFlags")
42 exposure, catalog = self.dataset.realize(10.0, task.schema, randomSeed=0)
43 task.run(catalog, exposure)
44 record = catalog[0]
45 self.assertFalse(record.get("base_PixelFlags_flag"))
46 self.assertFalse(record.get("base_PixelFlags_flag_edge"))
47 self.assertFalse(record.get("base_PixelFlags_flag_edgeCenter"))
48 self.assertFalse(record.get("base_PixelFlags_flag_edgeCenterAll"))
49 self.assertFalse(record.get("base_PixelFlags_flag_interpolated"))
50 self.assertFalse(record.get("base_PixelFlags_flag_interpolatedCenter"))
51 self.assertFalse(record.get("base_PixelFlags_flag_interpolatedCenterAll"))
52 self.assertFalse(record.get("base_PixelFlags_flag_saturated"))
53 self.assertFalse(record.get("base_PixelFlags_flag_saturatedCenter"))
54 self.assertFalse(record.get("base_PixelFlags_flag_saturatedCenterAll"))
55 self.assertFalse(record.get("base_PixelFlags_flag_cr"))
56 self.assertFalse(record.get("base_PixelFlags_flag_crCenter"))
57 self.assertFalse(record.get("base_PixelFlags_flag_crCenterAll"))
58 self.assertFalse(record.get("base_PixelFlags_flag_bad"))
59 self.assertFalse(record.get("base_PixelFlags_flag_badCenter"))
60 self.assertFalse(record.get("base_PixelFlags_flag_badCenterAll"))
62 def testSomeFlags(self):
63 self.dataset.addSource(100000.0, self.center)
64 task = self.makeSingleFrameMeasurementTask("base_PixelFlags")
65 exposure, catalog = self.dataset.realize(10.0, task.schema, randomSeed=0)
66 # one cr pixel outside the center
67 cosmicray = exposure.mask.getPlaneBitMask("CR")
68 x = round(self.center.x)
69 y = round(self.center.y)
70 exposure.mask[x+3, y+4] |= cosmicray
71 # one interpolated pixel near the center
72 interpolated = exposure.mask.getPlaneBitMask("INTRP")
73 exposure.mask[self.center] |= interpolated
74 # all pixels in the center are bad
75 bad = exposure.mask.getPlaneBitMask("BAD")
76 exposure.mask[x-1:x+2, y-1:y+2] |= bad
77 task.run(catalog, exposure)
78 record = catalog[0]
80 self.assertFalse(record.get("base_PixelFlags_flag_edge"))
81 self.assertFalse(record.get("base_PixelFlags_flag_edgeCenter"))
82 self.assertFalse(record.get("base_PixelFlags_flag_edgeCenterAll"))
83 self.assertTrue(record.get("base_PixelFlags_flag_cr"))
84 self.assertFalse(record.get("base_PixelFlags_flag_crCenter"))
85 self.assertFalse(record.get("base_PixelFlags_flag_crCenterAll"))
86 self.assertTrue(record.get("base_PixelFlags_flag_interpolated"))
87 self.assertTrue(record.get("base_PixelFlags_flag_interpolatedCenter"))
88 self.assertFalse(record.get("base_PixelFlags_flag_interpolatedCenterAll"))
89 self.assertTrue(record.get("base_PixelFlags_flag_bad"))
90 self.assertTrue(record.get("base_PixelFlags_flag_badCenter"))
91 self.assertTrue(record.get("base_PixelFlags_flag_badCenterAll"))
93 def testOffimageNonfinite(self):
94 """Test that flag_offimage and flag_edge are set correctly for
95 nonfinite sources.
96 """
97 # These three will be explicitly set to have a non-finite centroid; we
98 # cannot add sources off the image in TestDataset.
99 self.dataset.addSource(100000, lsst.geom.Point2D(20, 20))
100 self.dataset.addSource(100000, lsst.geom.Point2D(20, 100))
101 self.dataset.addSource(100000, lsst.geom.Point2D(100, 30))
102 task = self.makeSingleFrameMeasurementTask("base_PixelFlags")
103 exposure, catalog = self.dataset.realize(10.0, task.schema, randomSeed=0)
104 catalog[0]["slot_Centroid_x"] = np.inf
105 catalog[1]["slot_Centroid_x"] = -np.inf
106 catalog[2]["slot_Centroid_y"] = np.nan
107 task.run(catalog, exposure)
108 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_offimage"],
109 np.array([True, True, True]))
110 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edge"],
111 np.array([True, True, True]))
112 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edgeCenter"],
113 np.array([True, True, True]))
114 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edgeCenterAll"],
115 np.array([True, True, True]))
117 def testOffimage(self):
118 """Test that sources at the boundary of the image get flag_offimage
119 and flag_edge[Center[All]] set appropriately.
120 """
121 # These four will be explicitly set to values at the boundary; we
122 # cannot add sources off the image in TestDataset.
123 self.dataset.addSource(100000, lsst.geom.Point2D(20, 20))
124 self.dataset.addSource(100000, lsst.geom.Point2D(20, 100))
125 self.dataset.addSource(100000, lsst.geom.Point2D(40, 100))
126 self.dataset.addSource(100000, lsst.geom.Point2D(80, 30))
128 task = self.makeSingleFrameMeasurementTask("base_PixelFlags")
129 exposure, catalog = self.dataset.realize(10.0, task.schema, randomSeed=0)
131 # Mask 4 pixels at the x-edges
132 edgeBit = exposure.mask.getPlaneBitMask("EDGE")
133 exposure.mask.array[:4, :] |= edgeBit
134 exposure.mask.array[-4:, ] |= edgeBit
135 # Mask 4 pixels at the y-edges
136 nodataBit = exposure.mask.getPlaneBitMask("NO_DATA")
137 exposure.mask.array[:, :4] |= nodataBit
138 exposure.mask.array[:, -4:] |= nodataBit
140 # All of these should get edgeCenter and edgeCenterAll.
141 catalog[0]["slot_Centroid_x"] = -20.5 # on image
142 catalog[1]["slot_Centroid_x"] = -20.51 # off image
143 catalog[2]["slot_Centroid_y"] = 129.4 # on image
144 catalog[3]["slot_Centroid_y"] = 129.50 # off image
146 task.run(catalog, exposure)
148 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_offimage"],
149 np.array([False, True, False, True]))
150 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edge"],
151 np.array([False, True, False, True]))
152 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edgeCenter"],
153 np.array([True, True, True, True]))
154 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edgeCenterAll"],
155 np.array([True, True, True, True]))
157 def testEdgeFlags(self):
158 """Test that edge/edgeCenter/edgeCenterAll are set appropriately.
159 """
160 # Half of the Central 3x3 pixels are on the masked EDGE; no offimage or
161 # edgeCenterAll, but edge and edgeCenter.
162 self.dataset.addSource(100000, lsst.geom.Point2D(115, 30))
163 # Central 3x3 pixels all masked EDGE; no offimage but all edge flags.
164 self.dataset.addSource(100000, lsst.geom.Point2D(10, 127))
166 task = self.makeSingleFrameMeasurementTask("base_PixelFlags")
167 exposure, catalog = self.dataset.realize(10.0, task.schema, randomSeed=0)
169 # Mask 4 pixels at the x-edges
170 edgeBit = exposure.mask.getPlaneBitMask("EDGE")
171 exposure.mask.array[:4, :] |= edgeBit
172 exposure.mask.array[-4:, ] |= edgeBit
173 # Mask 4 pixels at the y-edges
174 nodataBit = exposure.mask.getPlaneBitMask("NO_DATA")
175 exposure.mask.array[:, :4] |= nodataBit
176 exposure.mask.array[:, -4:] |= nodataBit
178 task.run(catalog, exposure)
180 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_offimage"],
181 np.array([False, False]))
182 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edge"],
183 np.array([True, True]))
184 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edgeCenter"],
185 np.array([True, True]))
186 np.testing.assert_array_equal(catalog["base_PixelFlags_flag_edgeCenterAll"],
187 np.array([False, True]))
190class TestMemory(lsst.utils.tests.MemoryTestCase):
191 pass
194def setup_module(module):
195 lsst.utils.tests.init()
198if __name__ == "__main__": 198 ↛ 199line 198 didn't jump to line 199, because the condition on line 198 was never true
199 lsst.utils.tests.init()
200 unittest.main()