upd for Colab (#206)

* changes for google colab

* 1

* 1

* 1

* 1

interact/interact.py

@@ -6,7 +6,16 @@ import multiprocessing
 import cv2
 from tqdm import tqdm
 
-class Interact(object):
+try:
+    import IPython #if success we are in colab
+    from IPython.display import display, clear_output
+    import PIL
+    import matplotlib.pyplot as plt
+    is_colab = True
+except:
+    is_colab = False
+
+class InteractBase(object):
     EVENT_LBUTTONDOWN = 1
     EVENT_LBUTTONUP = 2
     EVENT_RBUTTONDOWN = 5
@@ -21,6 +30,30 @@ class Interact(object):
         self.key_events = {}
         self.pg_bar = None
 
+    def is_colab(self):
+        return False
+
+    def on_destroy_all_windows(self):
+        raise NotImplemented
+
+    def on_create_window (self, wnd_name):
+        raise NotImplemented
+
+    def on_show_image (self, wnd_name, img):
+        raise NotImplemented
+
+    def on_capture_mouse (self, wnd_name):
+        raise NotImplemented
+
+    def on_capture_keys (self, wnd_name):
+        raise NotImplemented
+
+    def on_process_messages(self, sleep_time=0):
+        raise NotImplemented
+
+    def on_wait_any_key(self):
+        raise NotImplemented
+
     def log_info(self, msg, end='\n'):
         print (msg, end=end)
 
@@ -31,12 +64,11 @@ class Interact(object):
         if wnd_name not in self.named_windows:
             #we will show window only on first show_image
             self.named_windows[wnd_name] = 0
-
         else: print("named_window: ", wnd_name, " already created.")
 
     def destroy_all_windows(self):
         if len( self.named_windows ) != 0:
-            cv2.destroyAllWindows()
+            self.on_destroy_all_windows()
             self.named_windows = {}
             self.capture_mouse_windows = {}
             self.capture_keys_windows = {}
@@ -47,35 +79,24 @@ class Interact(object):
         if wnd_name in self.named_windows:
             if self.named_windows[wnd_name] == 0:
                 self.named_windows[wnd_name] = 1
-                cv2.namedWindow(wnd_name)
+                self.on_create_window(wnd_name)
                 if wnd_name in self.capture_mouse_windows:
                     self.capture_mouse(wnd_name)
-
+            self.on_show_image(wnd_name,img)
-            cv2.imshow (wnd_name, img)
         else: print("show_image: named_window ", wnd_name, " not found.")
 
     def capture_mouse(self, wnd_name):
-        def onMouse(event, x, y, flags, param):
-            (inst, wnd_name) = param
-            if event == cv2.EVENT_LBUTTONDOWN: ev = Interact.EVENT_LBUTTONDOWN
-            elif event == cv2.EVENT_LBUTTONUP: ev = Interact.EVENT_LBUTTONUP
-            elif event == cv2.EVENT_RBUTTONDOWN: ev = Interact.EVENT_RBUTTONDOWN
-            elif event == cv2.EVENT_RBUTTONUP: ev = Interact.EVENT_RBUTTONUP
-            elif event == cv2.EVENT_MOUSEWHEEL: ev = Interact.EVENT_MOUSEWHEEL
-
-            else: ev = 0
-            inst.add_mouse_event (wnd_name, x, y, ev, flags)
-
         if wnd_name in self.named_windows:
             self.capture_mouse_windows[wnd_name] = True
             if self.named_windows[wnd_name] == 1:
-                cv2.setMouseCallback(wnd_name, onMouse, (self,wnd_name) )
+                self.on_capture_mouse(wnd_name)
         else: print("capture_mouse: named_window ", wnd_name, " not found.")
 
     def capture_keys(self, wnd_name):
         if wnd_name in self.named_windows:
             if wnd_name not in self.capture_keys_windows:
                 self.capture_keys_windows[wnd_name] = True
+                self.on_capture_keys(wnd_name)
             else: print("capture_keys: already set for window ", wnd_name)
         else: print("capture_keys: named_window ", wnd_name, " not found.")
 
@@ -101,28 +122,10 @@ class Interact(object):
             yield x
 
     def process_messages(self, sleep_time=0):
-        has_windows = False
+        self.on_process_messages(sleep_time)
-        has_capture_keys = False
-
-        if len(self.named_windows) != 0:
-            has_windows = True
-
-        if len(self.capture_keys_windows) != 0:
-            has_capture_keys = True
-
-        if has_windows or has_capture_keys:
-            wait_key_time = max(1, int(sleep_time*1000) )
-            key = cv2.waitKey(wait_key_time) & 0xFF
-        else:
-            if sleep_time != 0:
-                time.sleep(sleep_time)
-
-        if has_capture_keys and key != 255:
-            for wnd_name in self.capture_keys_windows:
-                self.add_key_event (wnd_name, key)
 
     def wait_any_key(self):
-        cv2.waitKey(0)
+        self.on_wait_any_key()
 
     def add_mouse_event(self, wnd_name, x, y, ev, flags):
         if wnd_name not in self.mouse_events:
@@ -240,4 +243,101 @@ class Interact(object):
         sys.stdin = os.fdopen( sys.stdin.fileno() )
         return inp
 
-interact = Interact()
+
+
+class InteractDesktop(InteractBase):
+
+    def on_destroy_all_windows(self):
+        cv2.destroyAllWindows()
+
+    def on_create_window (self, wnd_name):
+        cv2.namedWindow(wnd_name)
+
+    def on_show_image (self, wnd_name, img):
+        cv2.imshow (wnd_name, img)
+
+    def on_capture_mouse (self, wnd_name):
+        def onMouse(event, x, y, flags, param):
+            (inst, wnd_name) = param
+            if event == cv2.EVENT_LBUTTONDOWN: ev = InteractBase.EVENT_LBUTTONDOWN
+            elif event == cv2.EVENT_LBUTTONUP: ev = InteractBase.EVENT_LBUTTONUP
+            elif event == cv2.EVENT_RBUTTONDOWN: ev = InteractBase.EVENT_RBUTTONDOWN
+            elif event == cv2.EVENT_RBUTTONUP: ev = InteractBase.EVENT_RBUTTONUP
+            elif event == cv2.EVENT_MOUSEWHEEL: ev = InteractBase.EVENT_MOUSEWHEEL
+
+            else: ev = 0
+            inst.add_mouse_event (wnd_name, x, y, ev, flags)
+        cv2.setMouseCallback(wnd_name, onMouse, (self,wnd_name) )
+
+    def on_capture_keys (self, wnd_name):
+        pass
+
+    def on_process_messages(self, sleep_time=0):
+
+        has_windows = False
+        has_capture_keys = False
+
+        if len(self.named_windows) != 0:
+            has_windows = True
+
+        if len(self.capture_keys_windows) != 0:
+            has_capture_keys = True
+
+        if has_windows or has_capture_keys:
+            wait_key_time = max(1, int(sleep_time*1000) )
+            key = cv2.waitKey(wait_key_time) & 0xFF
+        else:
+            if sleep_time != 0:
+                time.sleep(sleep_time)
+
+        if has_capture_keys and key != 255:
+            for wnd_name in self.capture_keys_windows:
+                self.add_key_event (wnd_name, key)
+
+    def on_wait_any_key(self):
+        cv2.waitKey(0)
+
+class InteractColab(InteractBase):
+
+    def is_colab(self):
+        return True
+
+    def on_destroy_all_windows(self):
+        pass
+        #clear_output()
+
+    def on_create_window (self, wnd_name):
+        pass
+        #clear_output()
+
+    def on_show_image (self, wnd_name, img):
+        pass
+        # # cv2 stores colors as BGR; convert to RGB
+        # if img.ndim == 3:
+        #     if img.shape[2] == 4:
+        #         img = cv2.cvtColor(img, cv2.COLOR_BGRA2RGBA)
+        #     else:
+        #         img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
+        # img = PIL.Image.fromarray(img)
+        # plt.imshow(img)
+        # plt.show()
+
+    def on_capture_mouse (self, wnd_name):
+        pass
+        #print("on_capture_mouse(): Colab does not support")
+
+    def on_capture_keys (self, wnd_name):
+        pass
+        #print("on_capture_keys(): Colab does not support")
+
+    def on_process_messages(self, sleep_time=0):
+        time.sleep(sleep_time)
+
+    def on_wait_any_key(self):
+        pass
+        #print("on_wait_any_key(): Colab does not support")
+
+if is_colab:
+    interact = InteractColab()
+else:
+    interact = InteractDesktop()

mainscripts/Trainer.py

@@ -100,7 +100,11 @@ def trainerThread (s2c, c2s, args, device_args):
                         else:
                             for loss_value in loss_history[-1]:
                                 loss_string += "[%.4f]" % (loss_value)
-                            io.log_info (loss_string, end='\r')
+
+                            if io.is_colab():
+                                io.log_info ('\r' + loss_string, end='')
+                            else:
+                                io.log_info (loss_string, end='\r')
 
                         if model.get_target_iter() != 0 and model.is_reached_iter_goal():
                             io.log_info ('Reached target iteration.')
@@ -281,6 +285,9 @@ def main(args, device_args):
                 selected_preview = (selected_preview + 1) % len(previews)
                 update_preview = True
 
-            io.process_messages(0.1)
+            try:
+                io.process_messages(0.1)
+            except KeyboardInterrupt:
+                s2c.put ( {'op': 'close'} )
 
         io.destroy_all_windows()

requirements-colab.txt

@@ -0,0 +1,10 @@
+numpy==1.16.1
+h5py==2.9.0
+Keras==2.2.4
+opencv-python==4.0.0.21
+tensorflow-gpu==1.13.1
+plaidml-keras==0.5.0
+scikit-image
+tqdm
+ffmpeg-python==0.1.17
+git+https://www.github.com/keras-team/keras-contrib.git