Automatic antibiograms inhibition halo determination through texture and directional filtering analysis

A new segmentation and analysis strategy to automatically measure the inhibition halos (IHs) in antibiograms is presented. It is based on the application of a combined texture and directional filtering analysis technique on the result of a segmentation process which incorporates colour analysis and Hough transform applications. The computational efficiency is highly improved by applying the different processing stages to selected areas of the acquired images and exploiting a priori information about the IHs shape and distribution