Lenarduzzi, Licia Corneal geometry: preprocessing the map of curvature before compressing. (English) Zbl 1329.65057 Commun. Appl. Ind. Math. 3, No. 2, Article ID 416, 12 p. (2012). Summary: An algorithm to obtain a concise description of a map of corneal curvature is described in [L. Lenarduzzi, “Compression of corneal maps of curvature”, submitted (2012)]; here we enter into the details of its computational cost. In the current note we describe how to preprocess the map in order to correct the colors of some pixels: such pixels are mixture of colors from the palette (empty of pure black and pure white) with the pure white. The algorithm assigns one color of the palette to each one of such pixels. Cited in 1 Document MSC: 65D18 Numerical aspects of computer graphics, image analysis, and computational geometry Keywords:keratography; image treatment; level tree PDFBibTeX XMLCite \textit{L. Lenarduzzi}, Commun. Appl. Ind. Math. 3, No. 2, Article ID 416, 12 p. (2012; Zbl 1329.65057)