Zobrazeno 1 - 10
of 320
pro vyhledávání: '"image contrast enhancement"'
Autor:
Soumyajit Saha, Somnath Chatterjee, Shibaprasad Sen, Diego Oliva, Marco Perez-Cisneros, Ram Sarkar
Publikováno v:
Automatika, Vol 65, Iss 4, Pp 1545-1557 (2024)
Contrast enhancement aims to amplify the visual quality of images by modifying the contrast level because digital images may get distorted by casual acquisition. The article deals with contrast enhancement as an optimization problem and uses the Drag
Externí odkaz:
https://doaj.org/article/485a92237afe448b83bfa1e4b59ad679
Publikováno v:
Applied Sciences, Vol 14, Iss 9, p 3546 (2024)
High-Temperature Materials Science Experiment Cabinet on the Chinese Space Station is mainly used to carry out experimental research related to high-temperature materials science in microgravity. It is equipped with an X-ray transmission imaging modu
Externí odkaz:
https://doaj.org/article/ec1ba5148c314be691cc4276becb1ace
Publikováno v:
IEEE Access, Vol 11, Pp 6060-6077 (2023)
One crucial step in several image processing and computer vision applications is Image Contrast Enhancement (ICE), whose main objective is to improve the quality of the information contained in the processed images. Most of the proposed schemes attac
Externí odkaz:
https://doaj.org/article/d816a4fac3ad44ac89fc73c79f9700d4
Autor:
Vida Safardoulabi, Kambiz Rahbar
Publikováno v:
International Journal of Information and Communication Technology Research, Vol 14, Iss 4, Pp 36-45 (2022)
The equalization of histograms is a simple and efficient process for contrast enhancement. This paper presents equalization of the bi-histogram with the level of the entropy-based plateau. In the first step, the input histogram is divided into two se
Externí odkaz:
https://doaj.org/article/7e7c2cea46bb4ccfa987239f23dc54b5
Autor:
Quoc Tuan Nguyen Diep, Hoang Nhut Huynh, Minh Quan Cao Dinh, Thanh Ven Huynh, Anh Tu Tran, Trung Nghia Tran
Publikováno v:
Applied Sciences, Vol 14, Iss 5, p 2141 (2024)
This research investigates the critical role of frequency selection in Electrical Impedance Tomography (EIT), a non-invasive imaging technique that reconstructs internal conductivity distributions through injected electrical currents. Empirical frequ
Externí odkaz:
https://doaj.org/article/b0a39ce8f18b4fd1bfbba508bd9af36b
Akademický článek
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Publikováno v:
Applied Sciences, Vol 13, Iss 23, p 12649 (2023)
Infrared images have the advantages of being employed in all weather conditions and exhibiting strong anti-interference abilities and are widely used in many fields. However, there are also problems of low contrast, high noise and blurred details, fo
Externí odkaz:
https://doaj.org/article/d303eafedd4d41d2a9a84c08ce275848
Publikováno v:
IEEE Access, Vol 8, Pp 169196-169214 (2020)
Image contrast enhancement is a very important phase for processing of digital images. The main goal of image contrast enhancement is to improve the visual quality by improving the contrast level of images which were distorted or degraded due to casu
Externí odkaz:
https://doaj.org/article/f00f5118dedd41f0b4d0e7c135a0fa50
Autor:
Wenlong Wang, Chunrui Zhang
Publikováno v:
Mathematical Biosciences and Engineering, Vol 17, Iss 1, Pp 387-403 (2020)
This paper is concerned with how the singularity and delay in a feed forward neural network affect generic dynamics and bifurcations. By computation of Hopf-pitchfork point in a two-parameter nonlinear problem, the mode interactions in two parameters
Externí odkaz:
https://doaj.org/article/5945aa340fda46a4a620f49c5cdfd02f
Publikováno v:
Sensors, Vol 23, Iss 5, p 2498 (2023)
The dynamic range of an X-ray digital imaging system is very important when detecting objects with a high absorption ratio. In this paper, a ray source filter is used to filter the low-energy ray components which have no penetrating power to the high
Externí odkaz:
https://doaj.org/article/513ae016ee4f4dcda6ca9825645ac854