Simulation Research of Radiographic Image Enhancement Technology

Image enhancement is widely applied to biomedicine,nondestructive testing,satellite remote sensing and other fields.Especially for the low contrast radiographic images,usually there are some disadvantages such as the local area image does not show a striking contrast.In order to improve the clearness of low contrast radiographic images,in this paper we proposed a new enhancement algorithm which combined global adaptive equalization with local dynamic enhancement,then we simulated this enhancement algorithm.The new method will not only effectively increase the global contrast of low contrast radiographic images,but also intensify local details,having great reference value to the other grayscale images.