diff --git a/head_pose.py b/head_pose.py
index c5b8b3b..d4459ae 100644
--- a/head_pose.py
+++ b/head_pose.py
@@ -231,13 +231,13 @@ if not args.hide_graph:
     canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
 
 imageWindowRoot = Tk.Toplevel()
-imageWindowSize = (1280,800)
+imageWindowSize = tuple(metricsSize)
 imageWindowRoot.geometry('%dx%d+%d+%d' % (imageWindowSize[0],imageWindowSize[1],0,0))
 imageWindowRoot.attributes("-fullscreen", True)
 # imageCanvas is where the heatmap image is drawn
 imageCanvas = Tk.Canvas(imageWindowRoot,width=1280,height=800)
 imageCanvas.pack()
-imageWindowRoot.lift()
+
 
 if args.output_dir:
     startTime = time.time()
@@ -247,6 +247,10 @@ if args.queue_length:
     imageQueue = []
 
 while True:
+    if args.hide_preview:
+        # if preview is hidden, we can always re-raise the image window
+        imageWindowRoot.lift()
+    
     t1 = time.time()
     _, im = c.read()
     size = im.shape
@@ -373,9 +377,9 @@ while True:
             x = translation_vector[0] + rotation_vector[0] * a
             y = translation_vector[1] + rotation_vector[1] * a
 
-            a = - translation_vector[2] / viewDirectionVector[2]
-            x = translation_vector[0] + viewDirectionVector[0] * a
-            y = translation_vector[1] + viewDirectionVector[1] * a
+            # a = - translation_vector[2] / viewDirectionVector[2]
+            # x = translation_vector[0] + viewDirectionVector[0] * a
+            # y = translation_vector[1] + viewDirectionVector[1] * a
             point = np.array([x,y])
 
             currentPoint = point
@@ -474,7 +478,7 @@ while True:
 
     tkpi = ImageTk.PhotoImage(image)
     imageCanvas.delete("IMG")
-    imagesprite = imageCanvas.create_image(500,500,image=tkpi, tags="IMG")
+    imagesprite = imageCanvas.create_image(metricsSize[0]/2, metricsSize[1]/2,image=tkpi, tags="IMG")
     imageWindowRoot.update()
     tm24 = time.time()
     logger.debug("PIL image generated in %fs", tm24 - tm23)
@@ -490,6 +494,7 @@ while True:
         te5 = time.time()
         logger.debug("Drew graph & updated window in %fs", te5-te4)
 
+    logger.warn("{}".format(image.size))
     if args.output_dir:
         # save output to dir
         now = tm24  # time.time()