def process(video_in, pipeline, video_out=None, headless=True, inference=True):
"""Run video through pipeline"""
while video_in.isOpened():
ok, frame = video_in.read()
if not ok:
logger.error('Error reading video')
break
# quit
if not headless:
if cv2.waitKey(1) & 0xFF == ord('q'):
break
# main loop
tracks = pipeline.forward(frame)
boxes = [track['box'] for track in tracks]
boxes = [scale_box(box, frame) for box in boxes]
logger.debug("boxes: %s" % boxes)
frame = draw_boxes(frame, boxes)
# inference mode - write data to api
if inference:
write_api(tracks)
# display resulting frame
if not headless:
cv2.imshow('Video', frame)
# Write the frame into output file
if video_out:
video_out.write(frame)
def main(_argv):
flags.mark_flag_as_required("model")
flags.mark_flag_as_required("video")
flags.mark_flag_as_required("labels")
labels = read_label_pbtxt(FLAGS.labels)
start_time = time.time()
model = tf.saved_model.load(FLAGS.model)
end_time = time.time()
logging.info("model loaded")
logging.info(f"Elapsed time: {str(end_time - start_time)}sec")
start_time = time.time()
cap = cv2.VideoCapture(FLAGS.video)
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
out = None
if FLAGS.output:
fps = int(cap.get(cv2.CAP_PROP_FPS))
codec = cv2.VideoWriter_fourcc(*"XVID")
out = cv2.VideoWriter(FLAGS.output, codec, fps, (width, height))
while True:
_, img = cap.read()
if img is None:
logging.warning("Empty Frame")
time.sleep(0.1)
break
image_tensor = np.expand_dims(img, axis=0)
detections = model(image_tensor)
boxes = detections["detection_boxes"][0].numpy()
classes = detections["detection_classes"][0].numpy().astype(np.int32)
scores = detections["detection_scores"][0].numpy()
output_image = draw_boxes(
img.copy(),
boxes,
classes,
scores,
labels,
height,
width,
min_threshold=FLAGS.threshold,
)
output_image = cv2.resize(output_image, (width, height))
cv2.imshow("Object Detection", output_image)
if out:
out.write(output_image)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
cap.release()
end_time = time.time()
logging.info(f"Elapsed time: {str(end_time - start_time)}sec")
def main(_argv):
flags.mark_flag_as_required("model")
flags.mark_flag_as_required("ip")
flags.mark_flag_as_required("labels")
labels = read_label_pbtxt(FLAGS.labels)
stream_url = f"rtsp://{FLAGS.ip}:{FLAGS.port}/h264_ulaw.sdp"
if FLAGS.username and FLAGS.password:
stream_url = f"rtsp://{FLAGS.username}:{FLAGS.password}@{FLAGS.ip}:{FLAGS.port}/h264_ulaw.sdp"
start_time = time.time()
model = tf.saved_model.load(FLAGS.model)
end_time = time.time()
logging.info("model loaded")
logging.info(f"Elapsed time: {str(end_time - start_time)}sec")
start_time = time.time()
cap = VideoStream(cam=stream_url).start()
width = int(cap.stream.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.stream.get(cv2.CAP_PROP_FRAME_HEIGHT))
out = None
if FLAGS.output:
fps = int(cap.get(cv2.CAP_PROP_FPS))
codec = cv2.VideoWriter_fourcc(*"XVID")
out = cv2.VideoWriter(FLAGS.output, codec, fps, (width, height))
while True:
img = cap.read()
image_tensor = np.expand_dims(img, axis=0)
detections = model(image_tensor)
boxes = detections["detection_boxes"][0].numpy()
classes = detections["detection_classes"][0].numpy().astype(np.int32)
scores = detections["detection_scores"][0].numpy()
output_image = draw_boxes(
img.copy(),
boxes,
classes,
scores,
labels,
height,
width,
min_threshold=FLAGS.threshold,
)
cv2.imshow("Object Detection", cv2.resize(output_image, (800, 600)))
if out:
out.write(output_image)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
cap.stop()
end_time = time.time()
logging.info(f"Elapsed time: {str(end_time - start_time)}sec")
def main(_argv):
flags.mark_flag_as_required("model")
flags.mark_flag_as_required("image")
flags.mark_flag_as_required("labels")
labels = read_label_pbtxt(FLAGS.labels)
start_time = time.time()
tf.keras.backend.clear_session()
model = tf.saved_model.load(FLAGS.model)
end_time = time.time()
logging.info("model loaded")
logging.info(f"Elapsed time: {str(end_time - start_time)}sec")
image_np = load_image(FLAGS.image)
image_tensor = np.expand_dims(image_np, axis=0)
image_tensor = preprocess_input(image_tensor)
height, width, _ = image_np.shape
start_time = time.time()
detections = model(image_tensor)
end_time = time.time()
boxes = detections["detection_boxes"][0].numpy()
classes = detections["detection_classes"][0].numpy().astype(np.int32)
scores = detections["detection_scores"][0].numpy()
output_image = draw_boxes(
image_np.copy(),
boxes,
classes,
scores,
labels,
height,
width,
min_threshold=FLAGS.threshold,
)
output_image = cv2.cvtColor(output_image, cv2.COLOR_BGR2RGB)
cv2.imwrite(FLAGS.output, output_image)
cv2.imshow("Object Detection", output_image)
cv2.waitKey(0)
logging.info(f"Elapsed time: {str(end_time - start_time)}sec")
"-p",
type=str,
action='store',
help='Path to detector model file')
args = parser.parse_args()
# read image
image = cv2.imread(args.input_filepath)
# preprocess
pp_image = cv2.resize(image, (224, 224))
pp_image = cv2.cvtColor(pp_image, cv2.COLOR_BGR2RGB)
# detect
detector = Detector(args.model_path)
t0 = perf_counter()
boxes = detector.detect(pp_image)
logger.info("detect timer: %f" % (perf_counter() - t0))
# scale boxes back to image size
def scale_box(box, width, height):
x, y, w, h = box # coco format
return [x * width, y * height, w * width, h * height]
width, height, _ = image.shape
boxes = [scale_box(box, width, height) for box in boxes]
# draw
boxes = [xywh_to_xyxy(box) for box in boxes] # convert to xyxy format
image = draw_boxes(image, boxes, GREEN)
# save
cv2.imwrite(args.output_filepath, image)
def _main_(args):
config_path = args.conf
weights_path = args.weights
image_path = args.input
with open(config_path) as config_buffer:
config = json.load(config_buffer)
###############################
# Make the model
###############################
yolo = YOLO(architecture=config['model']['architecture'],
input_size=config['model']['input_size'],
labels=config['model']['labels'],
max_box_per_image=config['model']['max_box_per_image'],
anchors=config['model']['anchors'],
gpu=1) #One GPU for prediction
###############################
# Load trained weights
###############################
print('Weights Path: ', weights_path)
yolo.load_weights(weights_path)
###############################
# Predict bounding boxes
###############################
if image_path[-4:] == '.mp4' or image_path[-4:] == '.avi':
video_out = image_path[:-4] + '_detected' + image_path[-4:]
video_reader = cv2.VideoCapture(image_path)
nb_frames = int(video_reader.get(cv2.CAP_PROP_FRAME_COUNT))
frame_h = int(video_reader.get(cv2.CAP_PROP_FRAME_HEIGHT))
frame_w = int(video_reader.get(cv2.CAP_PROP_FRAME_WIDTH))
video_writer = cv2.VideoWriter(video_out,
cv2.VideoWriter_fourcc(*'MPEG'), 50.0,
(frame_w, frame_h))
for i in tqdm(list(range(nb_frames))):
_, image = video_reader.read()
boxes = yolo.predict(image)
image = draw_boxes(image, boxes, config['model']['labels'])
video_writer.write(np.uint8(image))
video_reader.release()
video_writer.release()
else:
image = cv2.imread(image_path)
boxes = yolo.predict(image)
image = draw_boxes(image, boxes, config['model']['labels'])
print(len(boxes), 'boxes are found')
cv2.imwrite(image_path[:-4] + '_detected' + image_path[-4:], image)
cv2.imshow('Prediction', image)
def main(_argv):
# helper variables
record = False
num_categories = 4
next_active = [0] * num_categories
record_active = 0
freq = cv2.getTickFrequency()
tmp_folder = None
frame_count = 0
# parse config file arguments
args, security_cam_category_index = get_security_cam_arguments(FLAGS)
min_threshold = args.get("min_threshold")
fps = args.get("fps")
wait_time = args.get("wait_after_message_send")
min_record_time = args.get("min_recording_time")
temp_path = args.get("temp_dir")
record_path = args.get("recording_save_path")
recipients = args.get("send_mail_to")
neglect_categories = args.get("neglect_categories")
tf.keras.backend.clear_session()
model = tf.saved_model.load(args.get("model"))
logging.info("...model loaded...")
# collect index of categories to neglect (do not detect) from all categories in labels model trained
neglect = []
if neglect_categories:
for key, value in security_cam_category_index.items():
if value["name"] in neglect_categories:
neglect.append(value["id"])
# create a temp directory to save frames when intruder detected to create video.
os.makedirs(temp_path, exist_ok=True)
# initiating stream capture
cap = VideoStream(resolution=args.get("res"), cam=args.get("cam")).start()
width = int(cap.stream.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.stream.get(cv2.CAP_PROP_FRAME_HEIGHT))
# recover previously failed videos whose frames are currently stored in temp folder. Video generation failed at that time because of some system failure
recover_videos(temp_path, record_path, fps, resolution=(width, height))
# initiating mailer
mailer = SendMail(mail_id=EMAIL_ADDRESS,
password=EMAIL_PASSWORD,
recipients=recipients)
# detect intruder in stream
while True:
t1 = cv2.getTickCount()
img = cap.read()
image_tensor = np.expand_dims(img, axis=0)
detections = model(image_tensor)
boxes = detections["detection_boxes"][0].numpy()
classes = detections["detection_classes"][0].numpy().astype(np.int32)
scores = detections["detection_scores"][0].numpy()
# draw bounding box in frame
frame = img.copy()
frame = draw_boxes(
frame,
boxes,
classes,
scores,
security_cam_category_index,
height,
width,
min_threshold=min_threshold,
put_label=False,
)
# when a new category detected start recording video and send mail to notify and record till category is being detected.
# sends a mail for every new category.
category = int(
get_category_index(scores, classes, min_threshold=min_threshold))
if category not in neglect and 0 < category <= num_categories:
if time.time() > next_active[category - 1]:
next_active[category - 1] = time.time() + wait_time
class_name = security_cam_category_index[category]["name"]
mailer.send_mail(create_mail_msg(class_name),
get_image_bytes(frame))
if tmp_folder is None:
tmp_folder = os.path.join(temp_path, f"{secrets.token_hex(8)}")
os.makedirs(tmp_folder, exist_ok=True)
frame_count = 0
record = True
record_active = time.time() + min_record_time
# print local time to frame
local_time = time.strftime("%a %d-%b-%Y %H:%M:%S", time.localtime())
cv2.putText(
frame,
f"{local_time}",
(10, 25),
cv2.FONT_HERSHEY_SIMPLEX,
0.4,
(0, 255, 255),
1,
cv2.LINE_AA,
)
# calculate fps and print it to frame
t2 = cv2.getTickCount()
t = (t2 - t1) / freq
cv2.putText(
frame,
f"FPS: {1 / t:.2f}".format(),
(10, 50),
cv2.FONT_HERSHEY_SIMPLEX,
0.4,
(255, 255, 0),
1,
cv2.LINE_AA,
)
# saving recording frames
if record and tmp_folder is not None:
cv2.imwrite(
os.path.join(tmp_folder,
f"{frame_count:08}_{secrets.token_hex(4)}.jpg"),
frame,
)
if time.time() > record_active:
logging.info("...recording stopped, generating video...")
record = False
# create video from frames in a new thread
SaveVideo(tmp_folder, record_path, fps, (width, height)).save()
tmp_folder = None
frame_count += 1
# if live enable then show UI
if FLAGS.live:
cv2.imshow("Intelligent Security Camera",
cv2.resize(frame, (800, 600)))
if cv2.waitKey(1) & 0xFF == ord("q"):
break
cap.stop()
