Figure 1From: Design and development of a content-based medical image retrieval system for spine vertebrae irregularity Examples of AOs classes of the cervical x-ray images. Samples of Macnab’s classification and their osteophyte severity grading in the cervical vertebrae x-ray images, (a) normal (b) moderate traction (c) severe claw and (d) slight claw-traction.Back to article page