C# (CSharp) Eithne IImage.Clear示例

示例#1

文件： HistogramView.cs 项目： zeta1999/eithne

        private Gdk.Pixbuf HistogramGraph(IImage img)
        {
            IImage graph = new IImage(BPP.Grayscale, img.W, 260);

            graph.Clear((byte)255);

            for (int i = 0; i < img.W; i++)
            {
                int hval = (byte)img[i, 0];

                for (int j = 0; j < hval; j++)
                {
                    graph[i, 255 - j] = (byte)0;
                }

                for (int j = 0; j < 3; j++)
                {
                    graph[i, 259 - j] = (byte)((i * 255) / img.W);
                }
            }

            return(graph.CreatePixbuf());
        }