The existing edge detectors have the disadvantages that they cannot identify the edges of deep geological bodies precisely and clearly. In order to overcome the problem of displayed edges of deep geological bodies and also to enhance the magnetic anomalies, we use the normalized enhanced analytic signal detectors, total horizontal derivative (THD), normalized total horizontal derivative (TDX), and the Theta angle filter. The methods are applied to synthetic and real data and evaluated their effectiveness by comparing the obtained results. The results show that the normalized methods are less sensitive to variations in the depth of the sources and can delineate the edges more clearly and precisely and among these filters, the Normalized Second-order enhanced Analytic Signal (NSAS) gives the best result.