In this paper, we sug est a useful method of enhancement and restoration for X-ray imaging. Enhancement of X-ray imaging is done by adjusting paramenter in computer and result is satisfactory. MTF of X-ray images for stationary body is studid. For simplicity, only the degradation within the intensifying screens and the effects of the extended X-ray source size are considerd. We have described the specific analytic MTF in certain casses and results are agrement with foreig computing results.