Beispiel #1
0
        private int GenerateStrokesWithRawScaling(Bitmap input, ColorImage area, ArrayList list, int S, int factor, int level)
        {
            int x, y;

            System.Console.WriteLine("Generating stroke positions image.");

            /*
             * Bitmap areascaled = new Bitmap(area.Width / factor, area.Height / factor);
             * Graphics g = Graphics.FromImage(areascaled);
             * g.ScaleTransform(1.0f / (float)factor, 1.0f / (float)factor);
             * g.DrawImage(area, 0, 0, area.Width, area.Height);
             * areascaled.Save("areascaled-" + factor.ToString() + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
             * ColorImage img = new ColorImage(areascaled);
             */

            ColorImage scaledWidth = ColorImage.ScaleWidth(area, area.Width / factor);
            ColorImage img         = ColorImage.ScaleHeight(scaledWidth, area.Height / factor);

            this.dither = new FloydSteinbergDither(4 * S / System.Math.Sqrt(level), 2.0f / level);

            UnsafeBitmap dithered = new UnsafeBitmap(this.dither.Dither(img));

            //StatusReporter.Instance.SubmitWorkingImage(ImageTools.GenWorkingImage(dithered));
            //dithered.Save("dithered-" + factor.ToString() + ".bmp", System.Drawing.Imaging.ImageFormat.Bmp);

            Bitmap   inscaled = new Bitmap(input.Width / factor, input.Height / factor);
            Graphics g2       = Graphics.FromImage(inscaled);

            g2.ScaleTransform(1.0f / (float)factor, 1.0f / (float)factor);
            g2.DrawImage(input, 0, 0, input.Width, input.Height);
            //inscaled.Save("inputscaled-" + factor.ToString() + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);

            System.Console.WriteLine("Collecting strokes.");

            int maxY = dithered.Height;
            int maxX = dithered.Width;

            ColorImage inScaled = new ColorImage(new UnsafeBitmap(inscaled));              // should be &inputscaled

            for (y = 0; y < maxY; y++)
            {
                for (x = 0; x < maxX; x++)
                {
                    if (dithered.GetPixel(x, y).R == 0)
                    {
                        //StatusReporter.Instance.SubmitWorkingImage(ImageTools.GenWorkingImage(dithered, x, y, S, S));
                        Stroke s = GenerateStroke(inScaled, x, y, S, factor, level);
                        list.Add(s);
                    }
                }
            }

            return(list.Count);
        }
Beispiel #2
0
        public Bitmap Render(ArrayList strokes, Bitmap paintingBitmap)
        {
            ColorImage strokeImage = new ColorImage(new UnsafeBitmap(strokeBitmap));
            int        strokeCount = 0;

            Graphics gr = Graphics.FromImage(paintingBitmap);

            gr.Clear(System.Drawing.Color.White);
            ColorImage painting = new ColorImage(new UnsafeBitmap(paintingBitmap));

            double OneEightyOverPi = 180.0f / System.Math.PI;

            Hashtable scaledStrokeHash = new Hashtable();
            Hashtable scaledWidthHash  = new Hashtable();

            TimeSpan durationGDI      = TimeSpan.Zero;
            TimeSpan durationBlending = TimeSpan.Zero;
            TimeSpan durationScaling  = TimeSpan.Zero;

            DateTime start = DateTime.Now;

            foreach (Stroke stroke in strokes)
            {
                double radians = stroke.theta * -1.0;
                //int max = System.Math.Max((int)stroke.l, (int)stroke.w);

                if ((float.IsNaN(stroke.l)) || (float.IsNaN(stroke.w)))
                {
                    continue;
                }

                int scaledWidth  = (int)stroke.l;
                int scaledHeight = (int)stroke.w;

                if ((scaledWidth == 0) || (scaledHeight == 0))
                {
                    continue;
                }

                DateTime startScaling = DateTime.Now;
                Point    p            = new Point(scaledWidth, scaledHeight);
                Bitmap   newStrokeBmp = null;
                if (scaledStrokeHash.ContainsKey(p))
                {
                    newStrokeBmp = (Bitmap)scaledStrokeHash[p];
                }
                else
                {
                    ColorImage temp1;
                    if (scaledWidthHash.ContainsKey(scaledWidth))
                    {
                        temp1 = (ColorImage)scaledWidthHash[scaledWidth];
                    }
                    else
                    {
                        temp1 = ColorImage.ScaleWidth(strokeImage, scaledWidth);
                        scaledWidthHash[scaledWidth] = temp1;
                    }

                    temp1 = ColorImage.ScaleWidth(strokeImage, scaledWidth);
                    ColorImage scaledImage = ColorImage.ScaleHeight(temp1, scaledHeight);
                    newStrokeBmp        = scaledImage.GenerateBitmap();
                    scaledStrokeHash[p] = newStrokeBmp;
                }
                durationScaling += DateTime.Now - startScaling;

                DateTime startGDI = DateTime.Now;
                Bitmap   sbmp     = new Bitmap(newStrokeBmp.Width, newStrokeBmp.Height);
                Graphics g        = Graphics.FromImage(sbmp);
                g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;// HighQualityBicubic;
                g.TranslateTransform(-newStrokeBmp.Width / 2, -newStrokeBmp.Height / 2, System.Drawing.Drawing2D.MatrixOrder.Append);
                g.RotateTransform((float)(radians * OneEightyOverPi), System.Drawing.Drawing2D.MatrixOrder.Append);
                g.TranslateTransform(newStrokeBmp.Width / 2, newStrokeBmp.Height / 2, System.Drawing.Drawing2D.MatrixOrder.Append);
                g.DrawImage(newStrokeBmp, 0, 0, newStrokeBmp.Width, newStrokeBmp.Height);
                //sbmp.Save("newstroke" + stroke.theta.ToString() + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
                sbmp.RotateFlip(System.Drawing.RotateFlipType.RotateNoneFlipY);
                Color c = Color.FromArgb(stroke.red, stroke.green, stroke.blue);
                durationGDI += DateTime.Now - startGDI;

                DateTime startBlending = DateTime.Now;
                ColorImage.Blend(ref painting, new ColorImage(new UnsafeBitmap(sbmp)), c, stroke.xc, stroke.yc);
                durationBlending += DateTime.Now - startBlending;

                //painting.GenerateBitmap().Save("intermediate-" + strokeCount + "n.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);

                strokeCount++;

                //StatusReporter.Instance.SetPercentComplete((int)(((float)strokeCount / (float)(strokes.Count)) * 100.0));
            }

            /*
             * foreach (Point p in h.Keys)
             * {
             *      Console.WriteLine("Stroke size (" + p.X + "," + p.Y + ") = " + (int)h[p]);
             * }
             */

            TimeSpan duration = DateTime.Now - start;

            StatusManager.Instance.StatusMessage("Total GDI duration: " + durationGDI.TotalMilliseconds + "ms");
            StatusManager.Instance.StatusMessage("Total Scaling duration: " + durationScaling.TotalMilliseconds + "ms");
            StatusManager.Instance.StatusMessage("Total Blending duration: " + durationBlending.TotalMilliseconds + "ms");
            StatusManager.Instance.StatusMessage("Rendering duration: " + duration.TotalMilliseconds + "ms");


            //bmp.Save("newpainting.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);

            return(painting.GenerateBitmap());;
        }