Different kinds of
atmospheric media and variation of weather conditions make the generation of out-door
scene image specially complex. In this paper, the influence of atmospheric media in
different weathers on imaging for out-door scene is analyzed firstly. Then the formulas
for MTF_se by sensed time, sunrise time, sunset time, temperature, wind speed,
relative humidity, solar flux and the formulas for MTFa by visibility distance, path
length are given. The overall MTF is the product of MTF_se and MTF_aFurthermore, the method of synthesizing image by MTF and the schemetic flow of image
generation are presented. Finally, the simulated images are compared with the gray level
ones captured in different weathers in our experiment, and the results are promising.