Samsung Electronics has licensed the Face Detection and Face Tracking software developed by DigitalOptics (DOC), in order to use it in Samsung Galaxy S 4 smartphones. DOC's Face Detection and Face Tracking software is part of DOC's FaceTools suite, which also includes Accurate Eye Tracking and Face Recognition, Smile and Blink Detection, among others. With FaceTools, end users can automatically identify individuals, capture fast moving objects, use enhanced user interfaces via real-time tracking of pupils, and take flawless pictures even under sub-optimum light or color balance conditions. This software is compatible with all application processors and can be optimized for power consumption and increased performance via custom hardware blocks, such as the DOC advanced hardware image processing (AHIP) embedded in Fujitsu's discrete image signal processors (ISPs).