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dark frame detection

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dmig 2018-12-09 14:22:55 +07:00
parent 377241bd2e
commit b465982092
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1 changed files with 14 additions and 2 deletions
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16
src/cli/add.py
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@ -106,14 +106,26 @@ time.sleep(2)
enc = [] enc = []
# Count the amount or read frames # Count the amount or read frames
frames = 0 frames = 0
dark_threshold = config.getfloat("video", "dark_threshold")
# Loop through frames till we hit a timeout # Loop through frames till we hit a timeout
while frames < 60: while frames < 60:
frames += 1
# Grab a single frame of video # Grab a single frame of video
# Don't remove ret, it doesn't work without it # Don't remove ret, it doesn't work without it
ret, frame = video_capture.read() ret, frame = video_capture.read()
gsframe = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
# Create a histogram of the image with 8 values
hist = cv2.calcHist([gsframe], [0], None, [8], [0, 256])
# All values combined for percentage calculation
hist_total = np.sum(hist)
# If the image is fully black or the frame exceeds threshold,
# skip to the next frame
if hist_total == 0 or (hist[0] / hist_total * 100 > dark_threshold):
continue
frames += 1
# Get the encodings in the frame # Get the encodings in the frame
enc = face_recognition.face_encodings(frame) enc = face_recognition.face_encodings(frame)