Image slice algorithm

you can use following method for slicing image:

public static void split(Image img, int portionHeight, int portionWidth, string path, string fileName,string extention)
        {

            int imageindex = 1;

            for (int y = 0; y < img.Height; y += portionHeight)
                for (int x = 0; x < img.Width; x += portionWidth)
                {
                   
                    if(x+portionWidth>img.Width)
                    {
                        portionWidth = img.Width - x;
                    }
                    if(y+portionHeight>img.Height)
                    {
                        portionHeight = img.Height - y;
                    }
                    Bitmap imgSplitted = new Bitmap(portionWidth, portionHeight);
                    Graphics gr = Graphics.FromImage(imgSplitted);
                    gr.Clear(Color.White);
                    gr.DrawImage(img, new Rectangle(0, 0, imgSplitted.Width, imgSplitted.Height), x, y, portionWidth,
                                 portionHeight, GraphicsUnit.Pixel);
                    gr.Save();
                    imgSplitted.Save(Path.Combine(path, fileName +  "_" + imageindex.ToString().PadLeft(2,'0') + extention));
                    imageindex++;
                }
        }





BEHTASH Moradi

Hmm I can't really find the information i'm looking for. I'm trying to build the same functionality as provided by the slice tool in Adobe Fireworks.
I want to be able to give an image and draw rectangles on that image, and then create the additional slices at the same time.
I've found an algorithm for it, but its not a very good one (it takes too long with more slices).

Hi,
    Well i am trying the same just sending the image path through the webservice and then slicing the images. Finding it difficult to code it out in .net C#. www.gasi.ch This is Daniel Gasenica's site...He provides usefull information on doing the same. We also have a deep zoom composer software for it.