| 摘要 |
The present invention is to provide an image processing system and a method thereof implemented to a series of images in a video film of an outdoor scene, which includes: defining types of free-falling objects (such as raindrops, snowflakes or hailstones) related to natural weather; reading information of a selected type of the free-falling objects so as to randomly generate falling positions and vertical falling textures of the free-falling objects in each image; detecting a grayscale value of the image, and defining a certain region of the image where the grayscale value exceeds a predetermined grayscale value as a deposited region; simulating a deposited status of the free-falling objects in each deposited region; and integrating the vertical falling texture and the deposited status into the video film for simulating the free-falling objects in the images, so as to produce effects approximating real effects of natural weather in the video film.
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