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85 lines
2.6 KiB
Python
85 lines
2.6 KiB
Python
#!/usr/bin/env python
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from __future__ import print_function
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import cv2, os, sys, time
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import numpy as np
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from argparse import ArgumentParser
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from picamera.array import PiRGBArray
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from picamera import PiCamera
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p = ArgumentParser("")
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p.add_argument("--video", type=int, default=0, help="video, default: 0")
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p.add_argument("--output", default=None, help="path to save movie, default: None (show live)")
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p.add_argument("--width", type=int, default=160, help="pre-detect resize width")
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p.add_argument("--height", type=int, default=128, help="pre-detect resize height")
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p.add_argument("--fourcc", default="XVID", help="MJPG,mp4v,XVID")
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p.add_argument("--framerate", type=float, default=25, help="output frame rate")
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p.add_argument("--show", default=False, action="store_true")
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p.add_argument("--frames", type=int, default=100)
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args = p.parse_args()
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fourcc = None
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#cam = cv2.VideoCapture(args.video)
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#cam.set(cv2.cv.CV_CAP_PROP_FRAME_WIDTH, args.width)
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#cam.set(cv2.cv.CV_CAP_PROP_FRAME_HEIGHT, args.height)
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if args.output:
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try:
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fourcc = cv2.cv.CV_FOURCC(*args.fourcc)
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except AttributeError:
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fourcc = cv2.VideoWriter_fourcc(*args.fourcc)
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out = cv2.VideoWriter()
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out.open(args.output, fourcc, args.framerate, (args.width, args.height))
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else:
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out = None
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print ("Starting camera", file=sys.stderr)
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cam = PiCamera()
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framesize = (args.width, args.height)
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cam.resolution = framesize
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cam.framerate = 32
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rawCapture = PiRGBArray(cam, size=framesize)
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# allow the camera to warmup
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time.sleep(0.25)
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count = 0
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try:
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# while True:
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# ret, frame = cam.read()
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for frame in cam.capture_continuous(rawCapture, format="bgr", use_video_port=True):
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# print "GRAB FRAME"
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frame = frame.array
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gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
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# ret, t= cv2.threshold(gray, 127, 255, cv2.THRESH_BINARY)
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frame = cv2.cvtColor(gray, cv2.COLOR_GRAY2BGR)
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# flow = cv2.calcOpticalFlowFarneback(prevgray, gray, 0.5, 3, 15, 3, 5, 1.2, 0)
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# prevgray = gray
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# clear the stream in preparation for the next frame (important for picamera!)
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rawCapture.truncate(0)
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if out != None:
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out.write(frame)
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count += 1
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if args.show:
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cv2.imshow('display', frame)
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if cv2.waitKey(5) & 0xFF == ord('q'):
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break
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if args.frames != None:
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if (count >= args.frames):
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break
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except KeyboardInterrupt:
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pass
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print ("\nCleaning up... Wrote", count, "frames")
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if out:
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out.release()
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if args.show:
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cv2.destroyAllWindows()
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