Recognizable picture languages
Parallel image processing
Handbook of formal languages, vol. 3
P systems with active membranes: attacking NP-complete problems
Journal of Automata, Languages and Combinatorics
Membrane Computing: An Introduction
Membrane Computing: An Introduction
WMC-CdeA '02 Revised Papers from the International Workshop on Membrane Computing
Tree operations in P systems and λ-calculus
Fundamenta Informaticae
Tree Operations in P Systems and λ-Calculus
Fundamenta Informaticae
Designing a new software tool for Digital Imagery based on P systems
Natural Computing: an international journal
Segmenting images with gradient-based edge detection using Membrane Computing
Pattern Recognition Letters
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We propose a variant of tissue-like P systems with symport rules and active membranes that generates two-dimensional picture languages. The method is unconventional in that, instead of using the membranes as regions for computation/writing, it uses them to hold elements of pictures. Thus, the picture itself, and actually the whole supporting rectangular grid, is composed of membranes, each one containing (among other symbols) a letter of the picture's alphabet. The method is illustrated by its application to the generation of local and recognizable picture languages.