lsst.ip.isr g480783c3b1+bd0164ef94
Isr.cc
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1// -*- lsst-c++ -*-
2
3/*
4 * LSST Data Management System
5 * Copyright 2008, 2009, 2010 LSST Corporation.
6 *
7 * This product includes software developed by the
8 * LSST Project (http://www.lsst.org/).
9 *
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the LSST License Statement and
21 * the GNU General Public License along with this program. If not,
22 * see <http://www.lsstcorp.org/LegalNotices/>.
23 */
24
25#include <cmath>
26
27#include "lsst/geom.h"
28#include "lsst/afw/math.h"
30#include "lsst/ip/isr/isr.h"
31
32namespace lsst { namespace ip { namespace isr {
33
34template <typename PixelT>
37{
38 typedef typename afw::image::MaskedImage<PixelT>::x_iterator x_iterator;
39 size_t nPix = 0;
40 for (int y = 0; y != mi.getHeight(); ++y) {
41 for (x_iterator ptr = mi.row_begin(y), end = mi.row_end(y); ptr != end; ++ptr) {
42 if (!(ptr.mask() & allow) && (!std::isfinite(ptr.image()) ||
43 !std::isfinite(ptr.variance()))) {
44 nPix += 1;
45 ptr.mask() |= maskVal;
46 }
47 }
48 }
49 return nPix;
50}
51
52template<typename ImagePixelT>
55 std::vector<std::string> badPixelMask,
56 bool isTransposed
57) {
58 typedef afw::image::MaskedImage<ImagePixelT> MaskedImage;
59
64 const int height = overscan.getHeight();
65 const int width = overscan.getWidth();
66
67 int length = height;
68 if (isTransposed) {
69 length = width;
70 }
71
73
75 statControl.setAndMask(overscan.getMask()->getPlaneBitMask(badPixelMask));
76
77 const int x0 = overscan.getX0();
78 const int y0 = overscan.getY0();
79 auto origin = geom::Point2I(x0, y0);
80 geom::Extent2I shifter;
81 geom::Extent2I extents;
82 if (isTransposed) {
83 shifter = geom::Extent2I(1, 0);
84 extents = geom::Extent2I(1, height);
85 } else {
86 shifter = geom::Extent2I(0, 1);
87 extents = geom::Extent2I(width, 1);
88 }
89
90 for (int x = 0; x < length; ++x) {
91 MaskedImage mi = MaskedImage(overscan, geom::Box2I(origin, extents));
92 values[x] = afw::math::makeStatistics(mi, afw::math::MEDIAN, statControl).getValue();
93 origin.shift(shifter);
94 }
95 return values;
96}
97
98std::string between(std::string &s, char ldelim, char rdelim) {
99 std::string::iterator b(s.begin());
100 std::string::iterator e(s.end());
101 std::string::iterator lp;
102 std::string::iterator rp;
103
104 std::string result;
105
106 if((lp = std::find(b, e, ldelim)) != e)
107 if((rp = std::find(++lp, e, rdelim)) != e)
108 result = std::string(lp, rp);
109
110 return result;
111}
112
113// Explicit instantiations
114
115template
117 afw::image::MaskedImage<int> const&, std::vector<std::string> badPixelMask, bool isTransposed);
118template
120 afw::image::MaskedImage<float> const&, std::vector<std::string> badPixelMask, bool isTransposed);
121template
123 afw::image::MaskedImage<double> const&, std::vector<std::string> badPixelMask, bool isTransposed);
124
125template class CountMaskedPixels<float>;
126template class CountMaskedPixels<double>;
127template class CountMaskedPixels<int>;
128
129// Function to mask nans in a masked image
136
137}}} // namespace lsst::ip::isr
int end
double x
int y
table::Key< int > b
T begin(T... args)
x_iterator row_end(int y) const
x_iterator row_begin(int y) const
double getValue(Property const prop=NOTHING) const
T end(T... args)
T find(T... args)
T isfinite(T... args)
Implementation of the templated Instrument Signature Removal stage of the nightly LSST Image Processi...
def length(self)
Statistics makeStatistics(lsst::afw::image::Image< Pixel > const &img, lsst::afw::image::Mask< image::MaskPixel > const &msk, int const flags, StatisticsControl const &sctrl=StatisticsControl())
Extent< int, 2 > Extent2I
Point< int, 2 > Point2I
size_t maskNans(afw::image::MaskedImage< PixelT > const &mi, afw::image::MaskPixel maskVal, afw::image::MaskPixel allow=0)
Mask NANs in an image.
Definition: Isr.cc:35
std::vector< double > fitOverscanImage(lsst::afw::image::MaskedImage< ImagePixelT > const &overscan, std::vector< std::string > badPixelMask, bool isTransposed)
Definition: Isr.cc:53
template size_t maskNans< int >(afw::image::MaskedImage< int > const &, afw::image::MaskPixel, afw::image::MaskPixel)
template std::vector< double > fitOverscanImage< int >(afw::image::MaskedImage< int > const &, std::vector< std::string > badPixelMask, bool isTransposed)
template size_t maskNans< float >(afw::image::MaskedImage< float > const &, afw::image::MaskPixel, afw::image::MaskPixel)
template size_t maskNans< double >(afw::image::MaskedImage< double > const &, afw::image::MaskPixel, afw::image::MaskPixel)
template std::vector< double > fitOverscanImage< double >(afw::image::MaskedImage< double > const &, std::vector< std::string > badPixelMask, bool isTransposed)
template std::vector< double > fitOverscanImage< float >(afw::image::MaskedImage< float > const &, std::vector< std::string > badPixelMask, bool isTransposed)
std::string between(std::string &s, char ldelim, char rdelim)
Definition: Isr.cc:98
Remove all non-astronomical counts from the Chunk Exposure's pixels.