Abstract. Random Amplified Polymorphism DNA (RAPD) analysis is a wellknown method for studying genetic relationships between individuals. In this context, processing the underlying RAPD images is a quite difficult problem, affected by various factors. A method for processing RAPD images is proposed, which aims to detect bands by pre-processing the images by performing a template correction step and a band detection mechanism. The results on RAPD images, which aim to study genetic relationship among tree individuals, show that the proposed method detects either negative or positive amplification (bands) with a very high accuracy.