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It is a mystery how the brain decodes color vision purely from the optic nerve signals it receives, with a core inferential challenge being how it disentangles internal perception with the correct color dimensionality from the unknown…

Neural and Evolutionary Computing · Computer Science 2025-03-04 Atsunobu Kotani , Ren Ng

Advances in high dynamic range (HDR) lighting estimation from a single image have opened new possibilities for augmented reality (AR) applications. Predicting complex lighting environments from a single input image allows for the realistic…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Zitian Zhang , Joshua Urban Davis , Jeanne Phuong Anh Vu , Jiangtao Kuang , Jean-François Lalonde

This paper presents ColorBlindnessEval, a novel benchmark designed to evaluate the robustness of Vision-Language Models (VLMs) in visually adversarial scenarios inspired by the Ishihara color blindness test. Our dataset comprises 500…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Zijian Ling , Han Zhang , Yazhuo Zhou , Jiahao Cui

People with color vision deficiency often face challenges in distinguishing colors such as red and green, which can complicate daily tasks and require the use of assistive tools or environmental adjustments. Current support tools mainly…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Shogo Morita , Yan Zhang , Takuto Yamauchi , Sinan Chen , Jialong Li , Kenji Tei

Vision-language models (VLMs) achieve strong benchmark results, yet can exhibit systematic perceptual weaknesses: structured, large changes to pixel values can cause confident yet nonsensical predictions, even when the underlying scene…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Nicoleta-Nina Basoc , Adrian Cosma , Emilian Radoi

In this work we present a "vision" model for blind people, preferentially for those ones of birth origin. The model should be implemented using the available computational resources at the moment. The model uses a simulation of an optical…

General Physics · Physics 2007-05-23 L. A. Amarante Ribeiro

Color is a critical design factor for web pages, affecting important factors such as viewer emotions and the overall trust and satisfaction of a website. Effective coloring requires design knowledge and expertise, but if this process could…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Kotaro Kikuchi , Naoto Inoue , Mayu Otani , Edgar Simo-Serra , Kota Yamaguchi

Various simulation methods of color appearance for dichromats or anomalous trichromats have been proposed over the years. To further improve the performance of the simulation model and extend the application range to both dichromats or…

Optics · Physics 2025-03-05 Lijia Sun , Shining Ma , Yong Tao , Liang Jia , Yue Liu , Yongtian Wang , Weitao Song

Blind people face significant challenges when using smartphones. The focus on improving non-visual mobile accessibility has been at the level of touchscreen access. Our research investigates the challenges faced by blind people in their…

Human-Computer Interaction · Computer Science 2019-10-31 André Rodrigues , Hugo Nicolau , Kyle Montague , João Guerreiro , Tiago Guerreiro

Underwater vision suffers from severe effects due to selective attenuation and scattering when light propagates through water. Such degradation not only affects the quality of underwater images but limits the ability of vision tasks.…

Computer Vision and Pattern Recognition · Computer Science 2018-01-16 Chongyi Li , Jichang Guo , Chunle Guo

Light plays a vital role in vision either human or machine vision, the perceived color is always based on the lighting conditions of the surroundings. Researchers are working to enhance the color detection techniques for the application of…

Computer Vision and Pattern Recognition · Computer Science 2024-02-08 Nizamuddin Maitlo , Nooruddin Noonari , Sajid Ahmed Ghanghro , Sathishkumar Duraisamy , Fayaz Ahmed

We suggest a new color distance based on two observations. First, perceptual color differences were designed to be used to compare very similar colors. They do not capture human perception for medium and large color differences well.…

Computer Vision and Pattern Recognition · Computer Science 2012-11-26 Ofir Pele , Michael Werman

We use methods from Riemann geometry to investigate transformations between the color spaces of color-normal and color weak observers. The two main applications are the simulation of the perception of a color weak observer for a color…

Computer Vision and Pattern Recognition · Computer Science 2016-05-04 Satoshi Oshima , Rica Mochizuki , Reiner Lenz , Jinhui Chao

The aim of this study was to assess the extreme effects of tinted lenses on colour vision by examining changes in chromatic sensitivity when viewing visual displays through a slightly tinted (blue-blocking) filter and through a heavily…

Medical Physics · Physics 2022-08-31 Lucia Natali , Alessandro Farini , Elisabetta Baldanzi , John Barbur

This study proposes a tactile diagram pattern for visually impaired people to recognize color information. The pattern uses the principle of three primary colors, with different patterns representing red, blue, and yellow. The size of…

Human-Computer Interaction · Computer Science 2024-11-11 Hsin-Yi Chao , Hiroki Ishizuka

Grayscale images are fundamental to many image processing applications like data compression, feature extraction, printing and tone mapping. However, some image information is lost when converting from color to grayscale. In this paper, we…

Image and Video Processing · Electrical Eng. & Systems 2021-09-01 Prasoon Ambalathankandy , Yafei Ou , Masayuki Ikebe

To see color, the human visual system combines the response of three types of cone cells in the retina--a compressive process that discards a significant amount of spectral information. Here, we present an approach to enhance human color…

Adversarial perturbation of images, in which a source image is deliberately modified with the intent of causing a classifier to misclassify the image, provides important insight into the robustness of image classifiers. In this work we…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Robert Bassett , Mitchell Graves , Patrick Reilly

Color representation is essential in computer vision and human-computer interaction. There are multiple color models available. The choice of a suitable color model is critical for various applications. This paper presents a review of color…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Muragul Muratbekova , Nuray Toganas , Ayan Igali , Maksat Shagyrov , Elnara Kadyrgali , Adilet Yerkin , Pakizar Shamoi

Object recognition technologies hold the potential to support blind and low-vision people in navigating the world around them. However, the gap between benchmark performances and practical usability remains a significant challenge. This…

Human-Computer Interaction · Computer Science 2024-08-07 Jonggi Hong , Hernisa Kacorri