Converting images to matrix form

Converting images to matrix form

• IntMain

  TonoGam wrote:

  I am referring to whether an image could be described as a matrix in the form: (Image) => (x1, x2, ... , x61, x62); where xa is a positive integer. Gam

  
  
  You want to convert an nxm image to a 1xnm matrix Most people wouldn't call that a matrix; a list or a vector is much more specific.   (This is most definitely not a matrix of "high dimensions" though, unless you consider 1 dimension high).
  
  

• SanthaMind

  Thanks for the quick reply.
  
  I am referring to whether an image could be described as a matrix in the form:
  
  (Image) => (x1, x2, ... , x61, x62);
  
  where xa is a positive integer.
  
  Gam
  
  

• Matt Tolhurst

  You can certainly use this declaration:

  int[ ] image = { x0, x1, x2, … };

  but I think this could get a little tedious. A little more detail in your question would provoke a more accurate response.

  
  
  

• VAD214

  TonoGam,
  I don't know if this is what you mean, but you can convert a bitmap to an array of bytes. What follows is a slightly modified version of an example on the MSDN (for the full example, see Bitmap.LockBits):

  private byte [] GetImageBytes (Bitmap bmp) {
  Rectangle rect = new Rectangle (0, 0, bmp.Width, bmp.Height);
  System.Drawing.Imaging.BitmapData bmpData = bmp.LockBits (rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, bmp.PixelFormat);
  IntPtr ptr = bmpData.Scan0;
  // This code is specific to a bitmap with 24 bits per pixels.
  int bytes = bmp.Width * bmp.Height * 3;
  byte [] rgbValues = new byte [bytes];
  System.Runtime.InteropServices.Marshal.Copy (ptr, rgbValues, 0, bytes);
  bmp.UnlockBits (bmpData);
  return rgbValues;
  }

  The above works for 24bpp, but it's not difficult to adapt to other pixel formats.

  HTH
  --mc

  
  

• Simon FERQUEL

  What would you expect the obstacles to be

   

  How high is ‘high’, in ‘high dimensions’

  < xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> 

  What do you mean by ‘unique’

   

  
  
  
• Converting images to matrix form