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add a label position arg for bounding boxes

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This commit is contained in:
Blake Blackshear 2020-01-12 07:50:21 -06:00
parent 1b74d7a19f
commit 205b8b413f
2 changed files with 14 additions and 4 deletions
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16
frigate/util.py
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@ -75,7 +75,7 @@ def compute_intersection_over_union(box_a, box_b):
def tonumpyarray(mp_arr):
return np.frombuffer(mp_arr.get_obj(), dtype=np.uint8)
def draw_box_with_label(frame, x_min, y_min, x_max, y_max, label, info, thickness=2, color=None):
def draw_box_with_label(frame, x_min, y_min, x_max, y_max, label, info, thickness=2, color=None, position='ul'):
if color is None:
color = COLOR_MAP[label]
display_text = "{}: {}".format(label, info)
@ -90,8 +90,18 @@ def draw_box_with_label(frame, x_min, y_min, x_max, y_max, label, info, thicknes
text_height = size[0][1]
line_height = text_height + size[1]
# set the text start position
text_offset_x = x_min
text_offset_y = 0 if y_min < line_height else y_min - (line_height+8)
if position == 'ul':
text_offset_x = x_min
text_offset_y = 0 if y_min < line_height else y_min - (line_height+8)
elif position == 'ur':
text_offset_x = x_max - (text_width+8)
text_offset_y = 0 if y_min < line_height else y_min - (line_height+8)
elif position == 'bl':
text_offset_x = x_min
text_offset_y = y_max
elif position == 'br':
text_offset_x = x_max - (text_width+8)
text_offset_y = y_max
# make the coords of the box with a small padding of two pixels
textbox_coords = ((text_offset_x, text_offset_y), (text_offset_x + text_width + 2, text_offset_y + line_height))
cv2.rectangle(frame, textbox_coords[0], textbox_coords[1], color, cv2.FILLED)

2
frigate/video.py
View File

@ -333,7 +333,7 @@ class Camera:
for id, obj in tracked_objects.items():
color = (0, 255,0) if obj['frame_time'] == frame_time else (255, 0, 0)
draw_box_with_label(frame, obj['box']['xmin'], obj['box']['ymin'], obj['box']['xmax'], obj['box']['ymax'], obj['name'], f"{int(obj['score']*100)}% {obj['area']} {id}", color=color, thickness=1)
draw_box_with_label(frame, obj['box']['xmin'], obj['box']['ymin'], obj['box']['xmax'], obj['box']['ymax'], obj['name'], f"{id}", color=color, thickness=1, position='bl')
# print a timestamp
time_to_show = datetime.datetime.fromtimestamp(frame_time).strftime("%m/%d/%Y %H:%M:%S")