*6.4. Comparison between Holistic, Local, and Hybrid Techniques*

In this section, we present some advantages and disadvantages of holistic, local, and hybrid approaches to identifying faces during the last 20 years. DL approaches can be considered as a statistical approach (holistic method), because the training procedure scheme usually searches for statistical structures in the input patterns. Table 4 presents a brief summary of the three approaches.


**Table 4.** General performance of face recognition approaches.
