Browse image's pixel

Browse image's pixel

• Matt Stum

  I am doing this in J#!!! Is it possible anyway
  

• cristi_bd

  Hi Davemord
  
  Use the following, I think it will be much faster.
  
  "
  int width = bmp.Width;
  int height = bmp.Height;
  
  int[] buffer = new int[width * height];
  
  BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
  
  Marshal.Copy(bmpData.Scan0, buffer, 0, buffer.Length);
  "
  
  Then you use bmpData to access the pixel-data of your image.
  For instance:
  
  int x = 10;
  int y = 20;
  if(bmpData[y*width + x] == Color.Green.ToArgb()) {
  // Do something
  }
  
  
  Kind Regards
  
  

• Moopy

  Unfortunately J# doesn’t support unsafe code on its own... is there any chance that you could build a C# class (in a separate assembly) to do the unsafe work you need and then access it from your J# code
  
  

• ProxyPro

  Not very! It's an option, but we will try to find something else before doing this.
  

• SCRunner

  If you are doing this C# you could try a little Unsafe Image Processing.
  
  
• Browse image's pixel