Pnicer performance results. For the tests displayed in the left-most panel two features were used (J−H, H−Ks), for the panel in the center three features, and for the right-most results four features. The colors of each matrix element display the code execution time for a given setup where the number of sources in the science field and the number of sources in the control field are incrementally increased. While for typical applications for a few thousand to a few ten thousand sources the de-reddening process finishes in a fraction of a second, only for extreme (and probably rare) use cases (10⁷ sources) we measure execution times longer than a minute.