saeedeh Jalilvand - Department of Geophysics, Hamedan Branch, Islamic Azad University, Hamedan
Ahmad۲- Alvandi - Young Researchers Club, Hamedan Branch, Islamic Azad University, Hamedan, Iran
Farzaneh۳- Gol Mohammadi - Department of Geology, Islamic Azad University, Khorasgan Branch, Khorasgan
Ali Khan Nasr Esfahani - Department of Geology, Islamic Azad University, Khorasgan Branch, Khorasgan

The edge detection of gravity and magnetic anomalies is one of the most important steps in the interpretation. In this paper the application of edge detection three filters togravity data is described. The residual gravity anomalies are used as the real data. Local phase filters are used to determinethe edges of these residual anomalies. The tiltderivative filter method results are compared with the results from theanalytic signal method which is a classical edge detection method. Tilt derivative filter method showsthe betterperformance of the analytic signal filter method. All map images used in this paper have been generated using MATLAB programming.

Tilt derivative filter, Analytic signal filter, Horizontal derivative filter, Gardaneh Rokh area, MATLAB