Re: Help to starting write example code based on ImageJ

Posted by Rasband, Wayne (NIH/NIMH) [E] on Apr 22, 2015; 7:06pm
URL: http://imagej.273.s1.nabble.com/Help-to-starting-write-example-code-based-on-ImageJ-tp5012571p5012573.html

On Apr 22, 2015, at 11:11 AM, Miguel-Angel Manso-Callejo (UPM) <[hidden email]> wrote:
>
> Dear all,
> I am interested on store a two dimensional array of float data in a tiff file.
>
> I have looking for libraries and i have found this.
> I am exciting to start writing a simple code in java that using this libraries store an image of float data pixels stored in a two dimensional array of float. I suppose that this is "simple”.

It is relatively simple. Here is an example that creates a 2D float array, creates an ImageProcessor from the array, creates an ImagePlus from the ImageProcessor, saves the ImagePlus in the user’s home directory as a TIFF file, opens the TIFF file and displays it.

-wayne

  int n = 256;
  float[][] array = new float[n][n];
  for (int y=0; y<n; y++)
     for (int x=0; x<n; x++)
        array[x][y] = x;
  ImageProcessor ip = new FloatProcessor(array);
  ImagePlus img = new ImagePlus("Float Array", ip);
  String dir = IJ.getDirectory("home");
  IJ.saveAs(img, "tif", dir+"test.tif");
  ImagePlus img2 = IJ.openImage(dir+"test.tif");
  img2.show();




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