video_renderers.py 文件源码

def render(self, path_to_frame):
        """This renders the frame at path_to_frame

        It will time only the rendering (no I/O), log the time, and write the 
        output image to disk.
        """

        input_img = util.read_img(path_to_frame)
        output_img = np.zeros(input_img.shape)

        # load module
        sys.path.append("../../apps/blur_one_stage")
        import blur_one_stage
        sys.path.remove("../../apps/blur_one_stage")

        # this is equivalent to using the @jit function decorator:
        jitted_func = numba.jit(blur_one_stage.gaussian_blur)

        t1 = time.time()
        jitted_func(input_img, output_img)
        t2 = time.time()

        print("Elapsed time: %f" % (t2 - t1))

        output_filename = path_to_frame.split(os.sep)[-1]
        util.write_img(output_img, 
            os.path.join(self.output_directory, output_filename))

        # append timing data to log file:
        with open(self.log_filename, "a") as f:
            f.write("%s, %f, %f\n" % (
                os.path.join(self.output_directory, output_filename), 
                t2 - t1, 
                1./(t2 - t1)))