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Image enhancement dengan menggunakan metode retinex
, 2006 Tidak semua image memiliki tampilan visual yang memuaskan mata manusia. Ketidakpuasan itu dapat timbul karena image yang memiliki banyak noise, image yang kurang tajam, image yang terlalu gelap, atau image yang terlalu terang.
Epatha, Leono
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Single-scale retinex using digital signal processors
, 2004 nasa.gov as.wm.edu nasa.gov nasa.gov The Retinex is an image enhancement algorithm that improves the brightness, contrast and sharpness of an image. It performs a non-linear spatial/spectral transform that provides simultaneous dynamic range compression ...
Glenn Hines +2 more
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A Total Variation Model for Retinex
SIAM Journal on Imaging Sciences, 2011Human vision has the ability to recognize color under varying illumination conditions. Retinex theory is introduced to explain how the human visual system perceives color. The main aim of this paper is to present a total variation model for Retinex.
Michael Ng
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A PDE Formalization of Retinex Theory
IEEE Transactions on Image Processing, 2010In 1964 Edwin H. Land formulated the Retinex theory, the first attempt to simulate and explain how the human visual system perceives color. His theory and an extension, the "reset Retinex" were further formalized by Land and McCann. Several Retinex algorithms have been developed ever since. These color constancy algorithms modify the RGB values at each
Catalina Sbert
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A Variational Model with Barrier Functionals for Retinex
SIAM Journal on Imaging Sciences, 2015Summary: This paper proposes a variational model with barriers for Retinex, borrowing the ideas of barrier methods. We first present an energy functional and then deduce a new energy functional from it by adding two barriers. The proposed model is defined as a constrained optimization problem associated with the deduced energy functional.
Chuanjiang He
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The 3rd Canadian Conference on Computer and Robot Vision (CRV'06), 2006
The retinex algorithm for lightness and color constancy is extended to include 3-dimensional spatial information reconstructed from a stereo image. A key aspect of traditional retinex is that, within each color channel, it makes local spatial comparisons of intensity.
Weihua Xiong, Brian V. Funt
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The retinex algorithm for lightness and color constancy is extended to include 3-dimensional spatial information reconstructed from a stereo image. A key aspect of traditional retinex is that, within each color channel, it makes local spatial comparisons of intensity.
Weihua Xiong, Brian V. Funt
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A Variational Framework for Retinex
International Journal of Computer Vision, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ron Kimmel +4 more
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Analyzing center/surround retinex
Information Sciences, 2020Abstract The receptive fields in the Human Visual System (HVS) are organized in such a way that they not merely capture information on the photoreceptor’s exposition to light but also on the differences in firing rates of their center and surround cells.
Jose Luis Lisani +3 more
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Variational Bayesian Method for Retinex
IEEE Transactions on Image Processing, 2014In this paper, we propose a variational Bayesian method for Retinex to simulate and interpret how the human visual system perceives color. To construct a hierarchical Bayesian model, we use the Gibbs distributions as prior distributions for the reflectance and the illumination, and the gamma distributions for the model parameters.
Liqian Wang +3 more
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