Python cv2.cv.fromarray() Examples

The following are 4 code examples of cv2.cv.fromarray(). 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 cv2.cv , or try the search function .
Example #1
Source File: qrxfer.py    From qrxfer with MIT License 5 votes vote down vote up 
def process_frames(self):

        while True:
            frame = cv.QueryFrame(self.capture)

            aframe = numpy.asarray(frame[:, :])
            g = cv.fromarray(aframe)
            g = numpy.asarray(g)

            imgray = cv2.cvtColor(g, cv2.COLOR_BGR2GRAY)

            raw = str(imgray.data)
            scanner = zbar.ImageScanner()
            scanner.parse_config('enable')

            imagezbar = zbar.Image(frame.width, frame.height, 'Y800', raw)
            scanner.scan(imagezbar)

            # Process the frames
            for symbol in imagezbar:
                if not self.process_symbol(symbol):
                    return

            # Update the preview window
            cv2.imshow(self.window_name, aframe)
            cv.WaitKey(5)
Example #2
Source File: color_replace.py    From virtual-dressing-room with Apache License 2.0 5 votes vote down vote up 
def replace_color(self,col=None):
        print self.hue[0][0]
        self.hue_val=col
        #cv2.imshow("hue",self.hue)
        if col!=None:
            cv.Set(cv.fromarray(self.hue),(self.hue_val),cv.fromarray(self.mask))
            
        self.scratch=cv2.merge([self.hue,self.sat,self.val])
        self.scratch=cv2.cvtColor(self.scratch,cv2.cv.CV_HSV2BGR)
        print 'replaced'
        return self.scratch
Example #3
Source File: Input.py    From DanceCV with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def getCurrentFrameAsImage(self):
        im = numpy.array(self.currentFrame)
        im = cv.fromarray(im)
        cv.CvtColor(im, im, cv.CV_BGR2RGB)
        pgImg = pygame.image.frombuffer(im.tostring(), cv.GetSize(im), "RGB")
        return pgImg
Example #4
Source File: Camera.py    From SimpleCV2 with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
def undistort(self, image_or_2darray):
        """
        **SUMMARY**

        If given an image, apply the undistortion given by the camera's matrix and return the result.

        If given a 1xN 2D cvmat or a 2xN numpy array, it will un-distort points of
        measurement and return them in the original coordinate system.

        **PARAMETERS**

        * *image_or_2darray* - an image or an ndarray.

        **RETURNS**

        The undistorted image or the undistorted points. If the camera is un-calibrated
        we return None.

        **EXAMPLE**

        >>> img = cam.getImage()
        >>> result = cam.undistort(img)


        """
        if(type(self._calibMat) != cv.cvmat or type(self._distCoeff) != cv.cvmat ):
            logger.warning("FrameSource.undistort: This operation requires calibration, please load the calibration matrix")
            return None

        if (type(image_or_2darray) == InstanceType and image_or_2darray.__class__ == Image):
            inImg = image_or_2darray # we have an image
            retVal = inImg.getEmpty()
            cv.Undistort2(inImg.getBitmap(), retVal, self._calibMat, self._distCoeff)
            return Image(retVal)
        else:
            mat = ''
            if (type(image_or_2darray) == cv.cvmat):
                mat = image_or_2darray
            else:
                arr = cv.fromarray(np.array(image_or_2darray))
                mat = cv.CreateMat(cv.GetSize(arr)[1], 1, cv.CV_64FC2)
                cv.Merge(arr[:, 0], arr[:, 1], None, None, mat)

            upoints = cv.CreateMat(cv.GetSize(mat)[1], 1, cv.CV_64FC2)
            cv.UndistortPoints(mat, upoints, self._calibMat, self._distCoeff)

            #undistorted.x = (x* focalX + principalX);
            #undistorted.y = (y* focalY + principalY);
            return (np.array(upoints[:, 0]) *\
                [self.getCameraMatrix()[0, 0], self.getCameraMatrix()[1, 1]] +\
                [self.getCameraMatrix()[0, 2], self.getCameraMatrix()[1, 2]])[:, 0]