You need an empty constructor for any object you want to store in vectors. Eg.

    vector<lsst::fw::MaskedPixelAccessor<PixelT, MaskT> > convolvedAccessorRowVec(10);    

requires

MaskedPixelAccessor();

However,

    vector<lsst::fw::MaskedPixelAccessor<PixelT, MaskT> > convolvedAccessorRowVec();    

does not. This means that making vectors of MaskedPixelAccessor? requires push_back instead of setting elements

---

typedef and typename

    typename lsst::fw::MaskedImage<PixelT,MaskT>::MaskedImagePtrT imageToConvolvePtr;
    typename lsst::fw::MaskedImage<PixelT,MaskT>::MaskedImagePtrT imageToNotConvolvePtr;

or

    typedef typename MaskedImage<PixelT,MaskT>::MaskedImagePtrT maskedImagePtrTType;

    maskedImagePtrTType imageToConvolvePtr;
    maskedImagePtrTType imageToNotConvolvePtr;

---

ptrs!

        computePSFMatchingKernelForPostageStamp(*imageToConvolvePtr, *imageToNotConvolvePtr, kernelBasisSet, kernelCoeffs);

when

template <class PixelT, class MaskT, class KernelT>
void lsst::imageproc::computePSFMatchingKernelForPostageStamp(
    lsst::fw::MaskedImage<PixelT, MaskT> const &imageToConvolve, ///< Goes with the code
    lsst::fw::MaskedImage<PixelT, MaskT> const &imageToNotConvolve, ///< This is for doxygen
    lsst::fw::LinearCombinationKernel<KernelT> &kernelBasisSet, ///< This is for doxygen
    std::vector<KernelT> &kernelCoeffs ///< This is for doxygen
    ) { 

---

iterators!

    std::vector<boost::shared_ptr<lsst::fw::Kernel<PixelT> > > kernelList = kernelBasisSet.getKernelList();
    for (unsigned ki = 0; ki < nKernelParameters; ki++) {
        lsst::fw::MaskedImage<PixelT, MaskT>
            convolvedImage = lsst::fw::kernel::convolve(imageToConvolve, *(kernelList[ki]), 0.0, vw::NoEdgeExtension());
        convolvedImageVec.push_back(convolvedImage);
    }

to

    typename std::vector<boost::shared_ptr<lsst::fw::Kernel<PixelT> > >::iterator kiter = kernelList.begin();
    for (; kiter != kernelList.end(); ++kiter) {
        lsst::fw::MaskedImage<PixelT, MaskT>
            convolvedImage = lsst::fw::kernel::convolve(imageToConvolve, *kiter, 0.0, vw::NoEdgeExtension());
        convolvedImageVec.push_back(convolvedImage);
    }