●●● ●●●● ●●●●● ●●●● ●●●●● Face Detection ●●●● Object-presence detections are also an important technique Identify and index features to support image similarity matching. Face detection is a good example Extraction TechniquesFace Detection ⚫ Object-presence detections are also an important technique. ⚫ Identify and index features to support image similarity matching. Face detection is a good example Extraction Techniques