Problems using Save XY-Coordinates... in a batch macro

[MtnMan]

Hi all,

I have 8-bit .tif images that I would like to export to a .txt file using "Save XY Coordinates."  When running the function on a single image there is a pup-up that allows me to specify the background intensity.  When a background value is selected the function does not include pixels that are more intense in the txt output.  For my further analysis I want all of the pixel values exported regardless of their value.  Save XY Coordinates, by default, uses the top left pixel as the background value.  After choosing the background value, a second window allows me to choose the save as location and file name.  

What I want to do is run Save XY Coordinates as a batch process where I choose a folder, and all of the images in that folder are converted to .txt files.  I also want the background value to be set at 256 or higher, I want the save as name to be the same as the .tif.  If I can set a second "output" folder that would optimal, but not necessary.

I have pasted the macro script I have am using below.  I searched the web to find the shell script and simply added the Save XY Coordinates function where appropriate.  When I run this macro I am able to choose a directory, and the first image is processed, then I get the save as dialog (with the proper .txt file name in the save as field).  If I click save, then the .txt file is saved, but it does not use the background value I supplied in the macro.  Instead it uses the default top left pixel value.  If I can get it to use the correct background value I can live with having to click OK for every iteration, but if anyone has any suggestions on how to fix both problems that would be great!

As a caveat I have experience writing in the R language, but very little experience in this macro language.  I can generally understand what example code is supposed to do, but I don't really understand the syntax too well.


Thanks for taking a look.
Duane





// "BatchProcessFolders"
//
// This macro batch processes all the files in a folder and any
// subfolders in that folder. In this example, it runs the Subtract
// Background command of TIFF files. For other kinds of processing,
// edit the processFile() function at the end of this macro.

   requires("1.33s");
   dir = getDirectory("Choose a Directory ");
   setBatchMode(true);
   count = 0;
   countFiles(dir);
   n = 0;
   processFiles(dir);
   print(count+" files processed");
   
   function countFiles(dir) {
      list = getFileList(dir);
      for (i=0; i<list.length; i++) {
          if (endsWith(list[i], "/"))
              countFiles(""+dir+list[i]);
          else
              count++;
      }
  }

   function processFiles(dir) {
      list = getFileList(dir);
      for (i=0; i<list.length; i++) {
          if (endsWith(list[i], "/"))
              processFiles(""+dir+list[i]);
          else {
             showProgress(n++, count);
             path = dir+list[i];
             processFile(path);
          }
      }
  }

  function processFile(path) {
       if (endsWith(path, ".tif")) {
       
           open(path);
                   txtname = substring(path, 0, lengthOf(path)-4) + ".txt";
                   
                   run("Save XY Coordinates...", "background = 300 save = ["+txtname+"]");
                   
           close();
      }
  }