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LSST Data Management Base Package
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_image.py
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1# This file is part of afw.
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/>.
21
22__all__ = ["Image", "DecoratedImage"]
23
24import numpy as np
25from lsst.utils import TemplateMeta
26
27from ._slicing import supportSlicing
28from ._disableArithmetic import disableImageArithmetic
29from ._fitsIoWithOptions import imageReadFitsWithOptions, imageWriteFitsWithOptions
30from ._imageLib import ImageI, ImageF, ImageD, ImageU, ImageL
31from ._imageLib import DecoratedImageI, DecoratedImageF, DecoratedImageD, DecoratedImageU, DecoratedImageL
32
33
34class Image(metaclass=TemplateMeta):
35
36 def __reduce__(self):
37 from lsst.afw.fits import reduceToFits
38 return reduceToFits(self)
39
40 def __deepcopy__(self, memo=None):
41 return self.clone()
42
43 def __str__(self):
44 return "{}, bbox={}".format(self.array, self.getBBox())
45
46 def __repr__(self):
47 return "{}.{}={}".format(self.__module__, self.__class__.__name__, str(self))
48
49 readFitsWithOptions = classmethod(imageReadFitsWithOptions)
50
51 writeFitsWithOptions = imageWriteFitsWithOptions
52
53
54Image.register(np.int32, ImageI)
55Image.register(np.float32, ImageF)
56Image.register(np.float64, ImageD)
57Image.register(np.uint16, ImageU)
58Image.register(np.uint64, ImageL)
59Image.alias("I", ImageI)
60Image.alias("F", ImageF)
61Image.alias("D", ImageD)
62Image.alias("U", ImageU)
63Image.alias("L", ImageL)
64
65
66class DecoratedImage(metaclass=TemplateMeta):
67
68 def convertF(self):
69 return ImageF(self, deep=True)
70
71 def convertD(self):
72 return ImageD(self, deep=True)
73
74 readFitsWithOptions = classmethod(imageReadFitsWithOptions)
75
76 writeFitsWithOptions = imageWriteFitsWithOptions
77
78
79DecoratedImage.register(np.int32, DecoratedImageI)
80DecoratedImage.register(np.float32, DecoratedImageF)
81DecoratedImage.register(np.float64, DecoratedImageD)
82DecoratedImage.register(np.uint16, DecoratedImageU)
83DecoratedImage.register(np.uint64, DecoratedImageL)
84DecoratedImage.alias("I", DecoratedImageI)
85DecoratedImage.alias("F", DecoratedImageF)
86DecoratedImage.alias("D", DecoratedImageD)
87DecoratedImage.alias("U", DecoratedImageU)
88DecoratedImage.alias("L", DecoratedImageL)
89
90
91for cls in set(Image.values()):
92 supportSlicing(cls)
93 disableImageArithmetic(cls)
94
95for cls in set(DecoratedImage.values()):
96 supportSlicing(cls)
97 disableImageArithmetic(cls)