Image slice algorithm

Question

Hi all,

I'm looking for an algorithm to slice images up in rectangles.
The result i'm looking for is the same result as using the slice tool in Adobe Fireworks.
So given n rectangles, slice these rectangles and also construct rectangles for the background.
The rectangles do not have the same size.

Does anyone know an algorithm for this?

Greetings Benoist

Behtash Moradi · Answer

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 for (int x = 0; x { 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

benoist · Answer

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).

Joel Sequeira · Answer

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.

Image slice algorithm

Answers (3)