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The input to the no-rainbow hypergraph coloring problem is a hypergraph $H$ where every hyperedge has $r$ nodes. The question is whether there exists an $r$-coloring of the nodes of $H$ such that all $r$ colors are used and there is no…

Data Structures and Algorithms · Computer Science 2021-04-07 Ghazaleh Parvini , David Fernández-Baca

We present a palette-based framework for color composition for visual applications. Color composition is a critical aspect of visual applications in art, design, and visualization. The color wheel is often used to explain pleasing color…

Graphics · Computer Science 2018-06-22 Jianchao Tan , Jose Echevarria , Yotam Gingold

A symmetrical model of color vision, the decoding model as a new version of zone model, was introduced. The model adopts new continuous-valued logic and works in a way very similar to the way a 3-8 decoder in a numerical circuit works. By…

Computer Vision and Pattern Recognition · Computer Science 2011-01-13 Chenguang Lu

Vehicle information recognition is crucial in various practical domains, particularly in criminal investigations. Vehicle Color Recognition (VCR) has garnered significant research interest because color is a visually distinguishable…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Gabriel E. Lima , Rayson Laroca , Eduardo Santos , Eduil Nascimento , David Menotti

Visible colors (BVRI) are a reasonable proxy for real spectra of Centaurs and Kuiper Belt Objects, which are rather linear in this range. Colors provide limited information but remain the best tool to study the bulk surface properties. We…

Earth and Planetary Astrophysics · Physics 2015-05-20 Nuno Peixinho , Audrey Delsanti , Alain Doressoundiram

Color serves as a fundamental dimension of human visual perception and a primary means of communicating about objects and scenes. As vision-language models (VLMs) become increasingly prevalent, understanding whether they name colors like…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Alexandra Gomez-Villa , Pablo Hernández-Cámara , Muhammad Atif Butt , Valero Laparra , Jesus Malo , Javier Vazquez-Corral

Human endeavor has involved making choices about color and looking for ways to color objects since the dawn of civilization. While it has been the exclusive domain of artists and craftspeople for millennia, the last century has seen the…

Graphics · Computer Science 2019-09-30 Jan Morovic

Automatic colorization of gray images with objects of different colors and sizes is challenging due to inter- and intra-object color variation and the small area of the main objects due to extensive backgrounds. The learning process often…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Mrityunjoy Gain , Avi Deb Raha , Rameswar Debnath

Motivated by their great potential to reduce the size, cost and weight, flat lenses, a category that includes diffractive lenses and metalenses, are rapidly emerging as key components with the potential to replace the traditional refractive…

Optics · Physics 2023-08-25 Roy Maman , Eitan Mualem , Noa Mazurski , Jacob Engelberg , Uriel Levy

Color is the most important intrinsic sensory feature that has a powerful impact on product sales. Color is even responsible for raising the aesthetic senses in our brains. Account for individual differences is crucial in color aesthetics.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Pakizar Shamoi , Atsushi Inoue , Hiroharu Kawanaka

Deep networks have shown impressive performance in the image restoration tasks, such as image colorization. However, we find that previous approaches rely on the digital representation from single color model with a specific mapping…

Computer Vision and Pattern Recognition · Computer Science 2024-08-09 Xiangcheng Du , Zhao Zhou , Yanlong Wang , Zhuoyao Wang , Yingbin Zheng , Cheng Jin

Is it coral, salmon, or peach? What seems like a simple color can have many names, and without a standard, these variations create confusion across design, technology, and communication. Color naming is a fundamental task across industries…

Human-Computer Interaction · Computer Science 2026-04-07 Aruzhan Sabitkyzy , Maksat Shagyrov , Pakizar Shamoi

Most sRGB-based LLIE methods suffer from entangled luminance and color, while the HSV color space offers insufficient decoupling at the cost of introducing significant red and black noise artifacts. Recently, the HVI color space has been…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Zhixin Cheng , Fangwen Zhang , Xiaotian Yin , Baoqun Yin , Haodian Wang

Color is an important source of information for visual functions such as object recognition, but it is greatly affected by the color of illumination. The ability to perceive the color of a visual target independent of illumination color is…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Io Yamada , Hirotsugu Okuno

Image classification is a fundamental application in computer vision. Recently, deeper networks and highly connected networks have shown state of the art performance for image classification tasks. Most datasets these days consist of a…

Computer Vision and Pattern Recognition · Computer Science 2019-02-04 Shreyank N Gowda , Chun Yuan

A constrained colouring or, more specifically, an $(\alpha,\beta)$-colouring of a hypergraph $H$, is an assignment of colours to its vertices such that no edge of $H$ contains less than $\alpha$ or more than $\beta$ vertices with different…

Combinatorics · Mathematics 2014-01-10 Yair Caro , Josef Lauri , Christina Zarb

Regressing the illumination of a scene from the representations of object appearances is popularly adopted in computational color constancy. However, it's still challenging due to intrinsic appearance and label ambiguities caused by unknown…

Computer Vision and Pattern Recognition · Computer Science 2019-12-25 Huanglin Yu , Ke Chen , Kaiqi Wang , Yanlin Qian , Zhaoxiang Zhang , Kui Jia

We extend our OKLCH-based accessibility optimization with context-adaptive constraint strategies that achieve near-universal success rates across diverse use cases. Our original strict algorithm reached 66-77% success by prioritizing…

Human-Computer Interaction · Computer Science 2025-12-09 Lalitha A R

Measuring the colorfulness of a natural or virtual scene is critical for many applications in image processing field ranging from capturing to display. In this paper, we propose the first deep learning-based colorfulness estimation metric.…

Multimedia · Computer Science 2019-08-23 Emin Zerman , Aakanksha Rana , Aljosa Smolic

Color Constancy is the ability of the human visual system to perceive colors unchanged independently of the illumination. Giving a machine this feature will be beneficial in many fields where chromatic information is used. Particularly, it…

Computer Vision and Pattern Recognition · Computer Science 2019-12-05 Oleksii Sidorov