Gonçalves, Luiz Marcos GarciaAzevedo, Samuel Oliveira de2014-12-172008-04-042014-12-172007-08-06AZEVEDO, Samuel Oliveira de. Sistema de agentes poligínicos para esteganálise de imagens digitais. 2007. 78 f. Dissertação (Mestrado em Ciência da Computação) - Universidade Federal do Rio Grande do Norte, Natal, 2007.https://repositorio.ufrn.br/jspui/handle/123456789/17965In this work, we propose a multi agent system for digital image steganalysis, based on the poliginic bees model. Such approach aims to solve the problem of automatic steganalysis for digital media, with a case study on digital images. The system architecture was designed not only to detect if a file is suspicious of covering a hidden message, as well to extract the hidden message or information regarding it. Several experiments were performed whose results confirm a substantial enhancement (from 67% to 82% success rate) by using the multi-agent approach, fact not observed in traditional systems. An ongoing application using the technique is the detection of anomalies in digital data produced by sensors that capture brain emissions in little animals. The detection of such anomalies can be used to prove theories and evidences of imagery completion during sleep provided by the brain in visual cortex areasapplication/pdfAcesso AbertoEsteganografiaEsteganáliseSegmentação de imagensCriptologiaPoliginiaSistemas multi-agentesCoordenaçãoSteganographySteganalysisImage segmentationCryptologyPoliginyMultiagent systemsCoordinationmasterThesisCNPQ::CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO::SISTEMAS DE COMPUTACAO