Enhancing Moon Crescent Visibility Using Contrast-Limited Adaptive Histogram Equalization and Bilateral Filtering Techniques

• Autorzy: Yussof Wan Nural Jawahir Hj Wan , Man Mustafa , Umar Roslan , Zulkeflee Ahmad Najmuddin , Awalludin Ezmahamrul Afreen , Ahmad Nazhatulshima

Identyfikatory

DOI

10.26636/jtit.2022.155721

• Języki publikacji: EN

Abstrakty

EN

Image enhancement is becoming increasingly im portant with the advancement of space exploration techniques and the technological development of more durable and sci entifically sound observatories equipped with more powerful telescopes. The enhancement of images helps astronomers an alyze the results and act toward determining the dates of religious festivals. This work describes a technique known as contrast-limited adaptive histogram equalization (CLAHE) with grayscale contrast enhancement and bilateral filtering. We apply CLAHE on the L component of the CIE-Lab color space to adjust lightness contrast. Subsequently, grayscale contrast enhancement is performed to increase the visibility of the moon crescent. Noise caused by grayscale contrast en hancement is reduced using bilateral filtering. Two quantitative measures are selected (PSNR and MSE) to show the visual improvement achieved by the proposed algorithm.

Słowa kluczowe

EN

bilateral filtering; CIELab; CLAHE; image enhancement; moon crescent

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2022
• Tom: nr 1
• Strony: 3--13
• Opis fizyczny: Bibliogr. 38 poz., rys., tab.

Twórcy

autor

Yussof Wan Nural Jawahir Hj Wan

• Intelligent Informatics, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu

• https://orcid.org/0000-0002-3618-1638

autor

Man Mustafa

• Intelligent Informatics, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu

• https://orcid.org/0000-0003-4071-721X

autor

Umar Roslan

• East Coast Environmental Research Institute (ESERI), Universiti Sultan Zainal Abidin, 21300 Kuala Terengganu, Terengganu, Malaysia

• https://orcid.org/0000-0002-8413-385X

autor

Zulkeflee Ahmad Najmuddin

• East Coast Environmental Research Institute (ESERI), Universiti Sultan Zainal Abidin, 21300 Kuala Terengganu, Terengganu, Malaysia

autor

Awalludin Ezmahamrul Afreen

• Intelligent Informatics, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu

• https://orcid.org/0000-0003-4470-0052

autor

Ahmad Nazhatulshima

• Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Federal Territory, Malaysia

• https://orcid.org/0000-0002-0464-1652

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).