Array grammars have been studied in the framework of Membrane Comput-
ing by using rewriting rules from transition P systems. In this paper we present a new
approach to dealing with array grammars by using tissue-like P systems and present an
application to the segmentation of images in two dimensional computer graphics.Ministerio de Ciencia e Innovación TIN2008-04487-EMinisterio de Ciencia e Innovación TIN-2009-13192Junta de Andalucía P08-TIC-0420