Abstract: On the basis of analyzing disadvantages of traditional fuzzy enhancement algorithms,a generalized fuzzy enhancement algorithm is put forward.This algorithm maps images into the generalized fuzzy space through introducting generalized fuzzy sets,designs a subsection sine function as fuzzy membership function and adopts the corresponding enhancement operator.Using the characteristics of generalized fuzzy transformmation,image can obtain satisfactory enhanement effect through processing the industrial RT inspection weld image with the generalized fuzzy enhancement algorithm.We apply the method of fuzzy entropy to analyze the enhancement effects and the influencing factors of the generalized fuzzy enhancement algorithm.