def real_time_lrp(conf):
"""Method to display feature relevance scores in real time.
Args:
conf: Dictionary consisting of configuration parameters.
"""
record_video = conf["playback"]["record_video"]
webcam = Webcam()
lrp = RelevancePropagation(conf)
if record_video:
recorder = VideoRecorder(conf)
while True:
t0 = time.time()
frame = webcam.get_frame()
heatmap = lrp.run(frame)
heatmap = post_processing(frame, heatmap, conf)
cv2.imshow("LRP", heatmap)
if record_video:
recorder.record(heatmap)
t1 = time.time()
fps = 1.0 / (t1 - t0)
print("{:.1f} FPS".format(fps))
if cv2.waitKey(1) % 256 == 27:
print("Escape pressed.")
break
if record_video:
recorder.release()
webcam.turn_off()
cv2.destroyAllWindows()
