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LSST Data Management Base Package
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lsst::afw::image::details Namespace Reference

Classes

struct  Div
 
struct  Minus
 
struct  Mult
 
struct  Plus
 

Functions

template<typename OperatorT, typename PixelT>
void operate (Image< PixelT > &img, ImageSlice< PixelT > const &slc, typename ImageSlice< PixelT >::ImageSliceType sliceType)
 A function to loop over pixels and perform the requested operation.
 

Function Documentation

◆ operate()

template<typename OperatorT, typename PixelT>
void lsst::afw::image::details::operate ( Image< PixelT > & img,
ImageSlice< PixelT > const & slc,
typename ImageSlice< PixelT >::ImageSliceType sliceType )

A function to loop over pixels and perform the requested operation.

Definition at line 94 of file ImageSlice.h.

95 {
96 OperatorT op;
97
98 if (sliceType == ImageSlice<PixelT>::ROW) {
99 for (int y = 0; y < img.getHeight(); ++y) {
100 typename ImageSlice<PixelT>::x_iterator pSlc = slc.row_begin(0);
101 for (typename Image<PixelT>::x_iterator pImg = img.row_begin(y), end = img.row_end(y);
102 pImg != end; ++pImg, ++pSlc) {
103 *pImg = op(*pImg, *pSlc);
104 }
105 }
106 } else if (sliceType == ImageSlice<PixelT>::COLUMN) {
107 typename ImageSlice<PixelT>::y_iterator pSlc = slc.col_begin(0);
108 for (int y = 0; y < img.getHeight(); ++y, ++pSlc) {
109 for (typename Image<PixelT>::x_iterator pImg = img.row_begin(y), end = img.row_end(y);
110 pImg != end; ++pImg) {
111 *pImg = op(*pImg, *pSlc);
112 }
113 }
114 }
115}
y_iterator col_begin(int x) const
Return an y_iterator to the start of the y'th row.
Definition ImageBase.h:413
int getHeight() const
Return the number of rows in the image.
Definition ImageBase.h:296
x_iterator row_begin(int y) const
Return an x_iterator to the start of the y'th row.
Definition ImageBase.h:401
x_iterator row_end(int y) const
Return an x_iterator to the end of the y'th row.
Definition ImageBase.h:404
typename _view_t::x_iterator x_iterator
An iterator for traversing the pixels in a row.
Definition ImageBase.h:133
typename _view_t::y_iterator y_iterator
An iterator for traversing the pixels in a column.
Definition ImageBase.h:143
A class to represent a 2-dimensional array of pixels.
Definition Image.h:51
g2d::python::Image< double > Image
Definition test_image.cc:14