BackgroundSubtraction.py 文件源码

def _getMedianVals(self):
        '''
        @return: A scipy matrix representing the gray-scale median values of the image stack.
           If you want a pyvision image, just wrap the result in pv.Image(result).
        '''
        self._imageStack = self._imageBuffer.asStackBW()
        medians = sp.median(self._imageStack, axis=0) #median of each pixel jet in stack
        return medians