A wooden fence with snow accumulating on it, rendered as a nineteenth-century engraving. Several steps went into this rendition—compensating for lens distortion, adjusting perspective, converting the picture to black-and-white, enhancing details two different ways, and finally the Colored Engraving filter by Lyle Kroll and David Tschumperlé, which is one of (at last count) 574 different filters and effects available in the G’MIC image-processing framework.