Update for Darwin

Makefile

@@ -9,12 +9,18 @@ color_b:="\033[0;34m"
 space:= $(empty) $(empty)
 newline:= '\n'
 listtxt:= $(subst $(space),$(newline),$(images))
+OS:= $(shell uname)
 # subst is a way to do string replacements, it works like this: $(subst $(delimitator),$(replacement),$(list))
 # it's used here to make a list of the images, with one filename on each line
 
 rmtmp:
 	rm $(tmpfile)
 
+testif:
+ifeq ($(OS),Darwin)
+	@echo $(OS)
+endif
+
 dirs: # create the directories for the working structures
 	mkdir images # scanned image dir
 	mkdir output # outputs dir
@@ -32,7 +38,14 @@ visualization: $(images) $(tmpfile) #requires mplayer
 	for i in $(images); do \
 		cat $$i >> $(tmpfile); \
 	done;
-	cat $(tmpfile) | mplayer -vo x11 -sws 4 -zoom -vf dsize=720:720 -demuxer rawvideo -rawvideo w=56:h=64:i420:fps=25 -;\
+	
+ifeq ($(OS),Darwin)	
+	cat $(tmpfile) | mplayer -sws 4 -zoom -vf dsize=720:720 -demuxer rawvideo -rawvideo w=56:h=64:i420:fps=25 -;
+else
+	cat $(tmpfile) | mplayer -vo x11 -sws 4 -zoom -vf dsize=720:720 -demuxer rawvideo -rawvideo w=50:h=50:i420:fps=25 -;
+endif
+#	ifeq ($(shell uname), Linux)
+	#	cat $(tmpfile) | mplayer -vo x11 -sws 4 -zoom -vf dsize=720:720 -demuxer rawvideo -rawvideo w=50:h=50:i420:fps=25 -;\
 
 
 # ** Makefile Syntax notes **