boost::gil::laplace_function::stencil_5points arrow_upward boost::gil::laplace_function::stencil_5points 5 point stencil approximation of Laplacian Synopsis Declared in <boost/gil/extension/image_processing/diffusion.hpp> struct stencil_5points; Description Only main 4 directions are non‐zero, the rest are zero Member Functions Name compute_laplace reduce Data Members Name delta_t Created with MrDocs