Template Function lsst::afw::math::scaledPlus

Function Documentation

template<typename OutImageT, typename InImageT>
void lsst::afw::math::scaledPlus(OutImageT &outImage, double c1, InImageT const &inImage1, double c2, InImageT const &inImage2)

Compute the scaled sum of two images

outImage = c1 inImage1 + c2 inImage2

For example to linearly interpolate between two images set: c1 = 1.0 - fracDist c2 = fracDist where fracDist is the fractional distance of outImage from inImage1: location of outImage - location of inImage1 fracDist = —————————————- location of inImage2 - location of inImage1

Parameters

  • [out] outImage: output image

  • [in] c1: coefficient for image 1

  • [in] inImage1: input image 1

  • [in] c2: coefficient for image 2

  • [in] inImage2: input image 2

Exceptions

  • lsst::pex::exceptions::InvalidParameterError: if outImage is not same dimensions as inImage1 and inImage2.