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NaUKMA Research Papers Computer Science
Article . 2019 . Peer-reviewed
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NaUKMA Research Papers Computer Science
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Cellular automata for image noise filtering and edge detection

Authors: Zhezherun, Oleksandr; Kalitovskyi, Bohdan;

Cellular automata for image noise filtering and edge detection

Abstract

Cellular Automata (CA) are the most common and simple models of parallel computations. CA can be successfully applied in image processing, where we consider images as a system of simple components (pixels), and the behaviour of each component is obtained and reformed according to the behaviour of their neighbours and their previous behaviour. The constructive components of these systems can perform reliable and complex tasks by interacting with each other. Precisely by setting certain rules of the behaviour of the components, the cellular automata achieved significant results in such areas of image processing as noise filtering, smoothing, edge detection, restoring and extracting the features of images, figures and texts recognition, image compression. However, up to these days corresponding researches remain being used only in order to solve specified tasks, such as image processing of minefields, the processing of X-ray images in medicine, or the analysis of satellite imagery. This paper reviews the application of CA for image analysis and processing. It demonstrates an image noise filter based on CA, which can remove impulse noise from a noise-corrupted image and compares it with the median filter. Meanwhile, the edge detection appears to be one of the most crucial tasks in image processing (especially for biological and medical images processing). So CA based edge detection has potential benefits over known traditional approaches since it is computationally efficient, and can be tuned for specific applications by appropriate selection or learning of rules. Several CA based edge detection methods are implemented and tested to enable an initial comparison between existing traditional methods (the Roberts cross operator, Sobel-Feldman operator, Laplace operator). This comparisons show that the provided CA-based methods are very perspective for impulse noise filtering and image edge detection.

У статті проведено огляд застосування клітинних автоматів для обробки та аналізу зображень. Наведено опис фільтрів, що можуть видаляти імпульсний шум із пошкоджених шумом зображень, і методів визначення контурів на зображеннях, реалізованих на основі клітинних автоматів. Продуктивність цих підходів було порівняно із традиційними методами: медіанним фільтром (для шумозаглушення) та перехресним оператором Робертса, оператором Собеля–Фельдмана, оператором Лапласа (для визначення контурів). Це порівняння засвідчує, що наведені методи на основі клітинних автоматів є дуже перспективними для фільтрації імпульсних шумів і виявлення контурів зображень.

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Keywords

клітинні автомати; обробка зображень; шумозаглушення; визначення контурів; лінійне правило, cellular automata; image processing; noise filtering; edge detection; linear rule

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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