Application of the bilateral filter to improve derivative based lineaments enhancement approaches

In the work discussed in this paper, we have applied the bilateral filter to improve the derivative based lineaments enhancement method of gravity and magnetic data. The method was tested using the gravity responses of a combined density model. A comprehensive comparisons indicated that the bilateral filter can effectively smooth the original field data without disturbing the sharpness edges. Filtered data obtained from the bilateral filter can be further used for edge detection stably without losing of useful boundary information.