// @float sigma
// @File(label="Select the input folder", style="directory") inputFolder
// @File(label="Select the output folder", style="directory") outputFolder

setBatchMode(true);
processFolder(inputFolder);
setBatchMode("exit and display");

function processFolder(input) {
	list = getFileList(input);
	for (i = 0; i < list.length; i++) {
		if(!File.isDirectory(input + list[i]))
			processFile(input, outputFolder, list[i]);
	}
}

function processFile(input, output, file) {
	// do the processing here by replacing
	// the following two lines by your own code
	print("\\Update0:Processing: " + input +"/"+ file);
	open(input+"/"+file);
	run("Gaussian Blur...", "sigma=1.60");
	saveAs(output+"/"+file);
	close();
}

// Can be called from the command line using (change the folder locations):
// ./ImageJ-linux64 --ij2 --headless --run ../../workflows/gaussian_blur.ijm "sigma='1.6', inputFolder='../../datasets/imagej-sample-images/noisy/', outputFolder='../../out/gb'"
// or without the names of the input parameters:
// ./ImageJ-linux64 --ij2 --headless --run ../../workflows/gaussian_blur.ijm "'1.6', '../../datasets/imagej-sample-images/noisy/', '../../out/gb'"