Python cv.GetSize() Examples

The following are 6 code examples of cv.GetSize(). 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: engine.py    From opencv-engine with MIT License 6 votes vote down vote up 
def rotate(self, degrees):
        if (degrees > 180):
            # Flip around both axes
            cv.Flip(self.image, None, -1)
            degrees = degrees - 180

        img = self.image
        size = cv.GetSize(img)

        if (degrees / 90 % 2):
            new_size = (size[1], size[0])
            center = ((size[0] - 1) * 0.5, (size[0] - 1) * 0.5)
        else:
            new_size = size
            center = ((size[0] - 1) * 0.5, (size[1] - 1) * 0.5)

        mapMatrix = cv.CreateMat(2, 3, cv.CV_64F)
        cv.GetRotationMatrix2D(center, degrees, 1.0, mapMatrix)
        dst = cv.CreateImage(new_size, self.image_depth, self.image_channels)
        cv.SetZero(dst)
        cv.WarpAffine(img, dst, mapMatrix)
        self.image = dst
Example #2
Source File: engine.py    From opencv-engine with MIT License 5 votes vote down vote up 
def size(self):
        return cv.GetSize(self.image)
Example #3
Source File: break_captcha_utils.py    From captchacker2 with GNU General Public License v3.0 5 votes vote down vote up 
def preprocess_captcha_part(file):
    letter_algo = []
    letters = split_captcha(file)
    
    for i in range (len(letters)):

        #letter = Image.fromstring("L", cv.GetSize(letters[i]), letters[i].tostring())
        letter = Image.open(letters[i])
        letter_algo.append(letter.point(lambda i: (i/255.)))

    return letters
Example #4
Source File: util.py    From multisensory with Apache License 2.0 5 votes vote down vote up 
def pil_from_cv(src):
  return Image.fromstring("L", cv.GetSize(src), src.tostring())
Example #5
Source File: util.py    From multisensory with Apache License 2.0 5 votes vote down vote up 
def pygame_from_cv(src):
  import cv
  """ return pygame image from opencv image """
  src_rgb = cv.CreateMat(src.height, src.width, cv.CV_8UC3)
  cv.CvtColor(src, src_rgb, cv.CV_BGR2RGB)
  return pygame.image.frombuffer(src_rgb.tostring(), cv.GetSize(src_rgb), "RGB")
Example #6
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()