Python cv.NamedWindow() Examples

The following are 3 code examples of cv.NamedWindow(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module cv , or try the search function .
Example #1
Source File: color-1.py    From rpi-opencv with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self):
        cv.NamedWindow( color_tracker_window, 1 )
        self.capture = cv.CaptureFromCAM(0)
        width = 640
        height = 480
        cv.SetCaptureProperty(self.capture,cv.CV_CAP_PROP_FRAME_WIDTH,width)
        cv.SetCaptureProperty(self.capture,cv.CV_CAP_PROP_FRAME_HEIGHT,height)
        #self.capture = cv.CaptureFromFile('crash-480.mp4')
Example #2
Source File: ps3rover20.py    From RoverPylot with GNU Lesser General Public License v3.0 5 votes vote down vote up 
def __init__(self):

        # Set up basics
        Rover20.__init__(self)
        self.wname = 'Rover 2.0: Hit ESC to quit'
        self.quit = False

        # Set up controller using PyGame
        pygame.display.init()
        pygame.joystick.init()
        self.controller = pygame.joystick.Joystick(0)
        self.controller.init()

         # Defaults on startup: lights off, ordinary camera
        self.lightsAreOn = False
        self.stealthIsOn = False

        # Tracks button-press times for debouncing
        self.lastButtonTime = 0

        # Try to create OpenCV named window
        try:
            if cv:
                cv.NamedWindow(self.wname, cv.CV_WINDOW_AUTOSIZE )
            else:
                pass
        except:
            pass

        self.pcmfile = open('rover20.pcm', 'w')

    # Automagically called by Rover class
Example #3
Source File: FPV_client.py    From elijah-provisioning with Apache License 2.0 4 votes vote down vote up 
def FPV_thread():
    global camera_index
    global capture
    global WINDOW_NAME
    global latest_frame
    global FPV_thread_stop
    global overlay_message  # shared with application return results
    global face_position    # shared with application return results

    FPV_init()

    cv.NamedWindow(WINDOW_NAME, cv.CV_WINDOW_NORMAL)
    cv.MoveWindow(WINDOW_NAME, 0, 0)

    width_scale = 1.0
    height_scale = 1.0
    while True:
        frame = cv.QueryFrame(capture)
        cv.Flip(frame, None, 1)

        #copy to buffer
        frame_lock.acquire()
        original_imagesize = (0,0)
        resized_imagesize = (0,0)
        if not latest_frame:
            latest_frame = cv.CreateImage((640, 480), frame.depth, frame.nChannels)
            original_imagesize = cv.GetSize(frame)
            resized_imagesize = cv.GetSize(latest_frame)
            width_scale = original_imagesize[0]*1.0/resized_imagesize[0]
            height_scale = original_imagesize[1]*1.0/resized_imagesize[1]
        cv.Resize(frame, latest_frame)
        frame_lock.release()


        #Display Result
        text_start_point = (10, 50)
        cv.PutText(frame, overlay_message, text_start_point, font, cv.Scalar(255,255,255))
        cv.Rectangle(frame, text_start_point, (original_imagesize[0], 100), cv.Scalar(0,0,0), thickness=cv.CV_FILLED)
        if face_position[0] > 0.0:
            point1 = (int(face_position[0]*width_scale), int(face_position[1]*height_scale))
            point2 = (int((face_position[0] + face_position[2])*width_scale), \
                    int((face_position[1]+face_position[3])*height_scale))
            cv.Rectangle(frame, point1, point2, \
                    cv.Scalar(255, 255, 255), thickness=2)
        cv.ShowImage(WINDOW_NAME, frame)
        cv.ResizeWindow(WINDOW_NAME, 200, 100)
        cv.NamedWindow(WINDOW_NAME, cv.CV_WINDOW_NORMAL);
        cv.SetWindowProperty(WINDOW_NAME, 0, cv.CV_WINDOW_FULLSCREEN);
        c = cv.WaitKey(10)
        if c == ord('q'):
            break

    print "[INFO] FPV Thread is finished"
    FPV_thread_stop = True
    FPV_close()