Downloading and Analysing Images from the Internet in Order to Detect Special Objects

Abstract

Along with all the positives brought by the Internet, the global network is also used for criminal purposes. The goal of the presented work was to create and optimize applications working in parallel with the search and illegal content analysis system (SWAT) created previously at the authors' university. The role of the SWAT system is to penetrate the Internet to search for images and provide links to the presented application. The presented application is able to detect various special objects, such as faces, symbols or child pornography. The use of bees algorithm-based optimization made it possible to increase the effectiveness of image analysis. With appropriate assumptions, the efficiency was increased by a factor of three times compared to the application without optimization. The efficiency of the optimization algorithm depends largely on the nature of the input data, the URL addresses. © Springer-Verlag Berlin Heidelberg 2013.