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fix default motion comment

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This commit is contained in:
Blake Blackshear 2021-11-15 06:54:03 -06:00
parent a0235b7da4
commit b2ce1edd5a
2 changed files with 20 additions and 2 deletions
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2
docs/docs/configuration/index.md
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@ -211,7 +211,7 @@ motion:
# Low values will cause things like moving shadows to be detected as motion for longer.
# https://www.geeksforgeeks.org/background-subtraction-in-an-image-using-concept-of-running-average/
frame_alpha: 0.2
# Optional: Height of the resized motion frame (default: 80)
# Optional: Height of the resized motion frame (default: 50)
# This operates as an efficient blur alternative. Higher values will result in more granular motion detection at the expense
# of higher CPU usage. Lower values result in less CPU, but small changes may not register as motion.
frame_height: 50

20
frigate/video.py
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@ -75,7 +75,25 @@ def filtered(obj, objects_to_track, object_filters):
def create_tensor_input(frame, model_shape, region):
cropped_frame = yuv_region_2_rgb(frame, region)
# TODO: is it faster to just convert grayscale to RGB? or repeat dimensions with numpy?
height = frame.shape[0] // 3 * 2
width = frame.shape[1]
# get the crop box if the region extends beyond the frame
crop_x1 = max(0, region[0])
crop_y1 = max(0, region[1])
crop_x2 = min(width, region[2])
crop_y2 = min(height, region[3])
size = region[3] - region[1]
cropped_frame = np.zeros((size, size), np.uint8)
cropped_frame[
0 : crop_y2 - crop_y1,
0 : crop_x2 - crop_x1,
] = frame[crop_y1:crop_y2, crop_x1:crop_x2]
cropped_frame = np.repeat(np.expand_dims(cropped_frame, -1), 3, 2)
# Resize to 300x300 if needed
if cropped_frame.shape != (model_shape[0], model_shape[1], 3):