ACTIVE, an Extensible Cataloging Platform for Automatic Indexing of Audiovisual Content Topics: Color and Texture Analyses; Content-Based Indexing, Search, and Retrieval; Features Extraction; Human and Computer Interaction; Object and Face Recognition In Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4 VISAPP: VISAPP, 574-581, 2016 , Rome, Italy