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.

                                                                  {
    OperatorT op;
 
    if (sliceType == ImageSlice<PixelT>::ROW) {
        for (int y = 0; y < img.getHeight(); ++y) {
            typename ImageSlice<PixelT>::x_iterator pSlc = slc.row_begin(0);
            for (typename Image<PixelT>::x_iterator pImg = img.row_begin(y), end = img.row_end(y);
                 pImg != end; ++pImg, ++pSlc) {
                *pImg = op(*pImg, *pSlc);
            }
        }
    } else if (sliceType == ImageSlice<PixelT>::COLUMN) {
        typename ImageSlice<PixelT>::y_iterator pSlc = slc.col_begin(0);
        for (int y = 0; y < img.getHeight(); ++y, ++pSlc) {
            for (typename Image<PixelT>::x_iterator pImg = img.row_begin(y), end = img.row_end(y);
                 pImg != end; ++pImg) {
                *pImg = op(*pImg, *pSlc);
            }
        }
    }
}