fix: resolved Python demos error on Windows #58

examples/facedet/faceblur.py

@@ -8,7 +8,6 @@ import time
 
 os.system('go build -o pigo.so -buildmode=c-shared pigo.go')
 pigo = cdll.LoadLibrary('./pigo.so')
-os.system('rm pigo.so')
 
 MAX_NDETS = 2048
 
@@ -35,7 +34,7 @@ def process_frame(pixs):
 
 	if data_pointer :
 		buffarr = ((c_longlong * 3) * MAX_NDETS).from_address(addressof(data_pointer.contents))
-		res = np.ndarray(buffer=buffarr, dtype=c_longlong, shape=(MAX_NDETS, 3,))
+		res = np.ndarray(buffer=buffarr, dtype=c_longlong, shape=(3,3))
 
 		# The first value of the buffer aray represents the buffer length.
 		dets_len = res[0][0]
@@ -45,15 +44,12 @@ def process_frame(pixs):
 		return dets
 
 width, height = 640, 480
+
 # initialize the camera
 cap = cv2.VideoCapture(0)
 cap.set(cv2.CAP_PROP_FRAME_WIDTH, width)
 cap.set(cv2.CAP_PROP_FRAME_HEIGHT, height)
 
-# Changing the camera resolution introduce a short delay in the camera initialization.
-# For this reason we should delay the object detection process with a few milliseconds.
-time.sleep(0.4)
-
 while(True):
 	ret, frame = cap.read()
 	pixs = np.ascontiguousarray(frame[:, :, 1]).flatten()
@@ -64,10 +60,10 @@ while(True):
 		if dets is not None:
 			for det in dets:
 				mask = np.zeros((height, width, 3), dtype=np.uint8)
-				mask = cv2.circle(mask, (int(det[1]), int(det[0])), int(det[2]/1.8), np.array([255, 255, 255]), -1)
+				mask = cv2.circle(mask, (int(det[1]), int(det[0])), int(det[2]/2.0), (255, 255, 255), -1)
 				frame = np.where(mask!=np.array([255, 255, 255]), frame, cv2.blur(frame, (30, 30), 0))
 
-	cv2.imshow('', frame)
+	cv2.imshow('Faceblur demo', frame)
 
 	if cv2.waitKey(5) & 0xFF == ord('q'):
 		break