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test-video.py
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test-video.py
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from model import *
from time import sleep
stream = cv2.VideoCapture('./videos/gatech.mp4')
prev_frame = None
averages = None
counter = 0
avg_diff = None
# TEST VIDEO HAS 7 PLAYS
# stream.set(2, 100)
def moving_average(a, n=3) :
ret = np.cumsum(a, dtype=float)
ret[n:] = ret[n:] - ret[:-n]
return ret[n - 1:] / n
if __name__ == "__main__":
deltas = []
start = datetime.now()
while True:
ret, frame = stream.read()
counter += 1
# if not averages is None:
# if counter > len(averages): break
# if averages[counter - 1] < avg_diff * 0.7:
# cv2.imshow("play start", frame)
# sleep(0.05)
# else:
# cv2.imshow("play start", np.zeros(frame.shape))
if not ret and averages is None:
counter = 0
averages = moving_average(np.array(deltas[1:]), n=30)
# averages = np.log(averages)
averages = np.sqrt(averages)
avg_diff = np.average(averages)
plt.plot(range(len(averages)), averages)
plt.plot([0, len(averages)], [avg_diff, avg_diff], 'g')
plt.plot([0, len(averages)], [avg_diff*0.8, avg_diff*0.8], 'g')
plt.show()
# 0/0
# stream.set(2, 0)
break
elif not ret:
break
frame = cv2.resize(frame, None, fx=0.5, fy=0.5)
hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
hsv[:, :, 2] = 128
gray = cv2.cvtColor(cv2.cvtColor(hsv, cv2.COLOR_HSV2BGR), cv2.COLOR_BGR2GRAY)
if prev_frame is None:
prev_frame = gray
delta = gray - prev_frame
thresh = cv2.threshold(delta, 200, 255, cv2.THRESH_BINARY | cv2.THRESH_OTSU)[1]
# cv2.imshow('delta', thresh)
cv2.imshow('frame',gray)
delt_score = np.sum(thresh)
deltas.append(delt_score)
prev_frame = gray
if cv2.waitKey(1) & 0xFF == ord('q'):
break
# find best moment
masked = (averages < avg_diff * 0.8).astype(int)
# stream = cv2.VideoCapture("videos/720_football.mov")
last = None
for i in range(len(masked) - 1):
# if not last is None and i < last + 30:
# continue
if masked[i] == 1 and masked[i + 1] == 0:
print(i)
# print(stream.get(1))
stream.set(1, i)
ret, frame = stream.read()
if not ret:
print(frame.shape)
cv2.imwrite("training_images/last_%d.png" % i, frame)
last = i
# print(deltas)
print(datetime.now() - start)
stream.release()
cv2.destroyAllWindows()