title = "What is your image name image?";
msg = "Click \"OK\", then choose the text file which contains the image name. ";
waitForUser(title, msg);

filename = File.openAsRawString("");

dir = getDirectory("Choose the folder of target image");
list = getFileList(dir);

dir2 = getDirectory("Choose the folder to save the cut image");
dir3 = getDirectory("Choose the folder to save the red image");
dir4 = getDirectory("Choose the folder to save the green image");

savepath = dir2 + filename
savepath2 = dir3 + filename
savepath3 = dir4 + filename

for (i=0; i<list.length; i++) {
	file = dir + list[i]; // define the path
	open(file); // open the target image file
	run("Canvas Size...", "width=256 height=256 position=Center-Left"); //cut
	saveAs("Tiff", savepath + " " + i);
	
	run("Split Channels"); //split
	selectWindow(filename + " " + i + ".tif" + " (blue)");
	close();
	selectWindow(filename + " " + i + ".tif" + " (red)");
	saveAs("Tiff", savepath2 + " " + i + ".tif");
	close();
	selectWindow(filename + " " + i + ".tif" + " (green)");
	saveAs("Tiff", savepath3 + " " + i + ".tif");
	close();
}