An Enhancement Algorithm Based on Pyramid Structure for Radiographies

When inspecting radiographics, some detail information cannot be detected due to large range of gray scales and complex tissue structure. The proposed approach of Gauss-Laplacian pyramid structure can amplify the detail information and resist noise by non-linear processing at different scales. The enhanced detail information is then added back to the original image iteratively, and the improved image is consistent to the characteristics of human being´s vision system, thus provides doctors with reliable evidences for diagnosis.