Proc. the IASTED International Conference COMPUTER GRAPHICS AND IMAGING,
pp. 250-255 (2000)
ABSTRACT
In generating scenes for driving simulators and movies,
it is at times desirable to alter the weather conditions
of image sequences taken from a video camera.
The paper proposes a method for generating a rainy scene
from an image sequence taken on a clear day.
The proposed method segments an image into three kinds of area:
sky, road, and all the other surrounding area, including buildings and trees.
Each area is processed in different ways to generate the rainy scene.
Blue sky is replaced with a cloudy sky.
Road surface tone is modified to that of a wet road.
The intensity distribution in the surrounding area
is adjusted to that of shadow.
A scene taken from a vehicle driverŐs seat is applied
to demonstrate the usefulness of the proposed method.
Keywords: Image manipulation, Segmentation, HLS color space, Filter
