#include int main(int nArgs, char **ppcArg){ ImgQ a = scale(create("flowers"),320,240); ImgQ b = scale(create("windows"),320,240); /// this will implicitly use the arithmetical op ImgQ apb = norm(a+b); ImgQ amb = norm(a-b); ImgQ am100 = norm(a-100); ImgQ x = (label(a,"A"), label(b,"B")) % (label(apb,"norm(A+B)"), label(amb,"norm(A-B)"), label(am100,"norm(a-100)")); show(x); }