Checklist for Daltonization methods: Requirements and characteristics of a good recolouring method

Simon-Liedtke, Joschua Thomas; Flatla, David R.; Bakken, Eskild Narum

doi:10.2352/issn.2470-1173.2017.18.color-029

Cited by 11 publications

(5 citation statements)

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“…Here, an evaluation based on different test images and proposed target images types is given. This research also revealed a need for guidelines for designing and evaluating such algorithms, and a proposed checklist (Simon-Liedtke et al 2017) include requirements concerning preservation of color identification, customization for different types and severities of CVD, target image types and the emphasis on evaluating methods on real CVD observers.…”

Section: Post-processing Methodsmentioning

confidence: 99%

Accessible maps for the color vision deficient observers: past and present knowledge and future possibilities

Kvitle

2018

Proc. Int. Cartogr. Assoc.

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<p><strong>Abstract.</strong> Color is part of the visual variables in map, serving an aesthetic part and as a guide of attention. Impaired color vision affects the ability to distinguish colors, which makes the task of decoding the map colors difficult. Map reading is reported as a challenging task for these observers, especially when the size of stimuli is small. The aim of this study is to review existing methods for map design for color vision deficient users. A systematic review of research literature and case studies of map design for CVD observers has been conducted in order to give an overview of current knowledge and future research challenges. In addition, relevant research on simulations of CVD and color image enhancement for these observers from other fields of industry is included. The study identified two main approaches: pre-processing by using accessible colors and post-processing by using enhancement methods. Some of the methods may be applied for maps, but requires tailoring of test images according to map types.</p>

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Section: Post-processing Methodsmentioning

confidence: 99%

Accessible maps for the color vision deficient observers: past and present knowledge and future possibilities

Kvitle

2018

Proc. Int. Cartogr. Assoc.

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“…It is a complex task that carries with it the issue of remapping a colour spectre to a smaller one, more suitable for people with colour vision deficiency (Milic et al, 2015). Generally, there are two kinds of daltonizations, content-independent daltonization which will remap one colour to another, disregarding the content of the image, and content-dependant daltonization which will remap one colour to another, depending on the context of an image, assuring that the object in the image is standing out from the background (Simon-Liedtke et al, 2017). Currently, content-dependant daltonization is taxing for the computer, which makes it potentially inadequate for an image that is changing in real-time, which is the case in video games.…”

Section: Daltonization Toolsmentioning

confidence: 99%

“…The surface of an image can be changed partly, where only one colour or one part of an image is being daltonized or fully, where the whole image is being remapped. Depending on the customization factor, some daltonizations are made for an individual or a certain group of colour blindness, while some are made universal (Simon-Liedtke et al, 2017). In some instances, the user can control the daltonization level, while in some cases it is automatic.…”

Section: Daltonization Toolsmentioning

confidence: 99%

An overview of the user experience in online video game players with colour vision deficiency

Kerac¹,

Keresteš²,

Dedijer³

2022

Proceedings - The Eleventh International Symposium GRID 2022

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This paper aims to give an overview of the user experience in online video game players with colour vision deficiency by exploring the different methods of daltonization tools given within four popular online multiplayer video games. The paper also considers the different options for improving the user experience of players with colour vision deficiency based on the noticed shortcomings of analysed games. The analysis of the potential colour confusing scenes was done for the four popular online multiplayer games: Rust published by the Facepunch studio, Valorant and League of Legends both published by Riot Games and Overwatch, published by Blizzard. The conducted research has shown that Rust has no accessibility settings, Valorant and League of Legends use partial daltonization, while Overwatch is characterised by full daltonization. Detailed analyses of the pros and cons of each daltonization level for each video game were presented along with suggestions for improvement, including the implementation of the proto-patterns method suggested by Molina-López and Medina-Medina (2019). As the result, it was shown that colour, although an essential part of video game design, can and should be a secondary element in video game graphics over which shapes, outlines and text should lead in the clear presentation of the information and reduction of mistakes due to colour vision impairments.

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“…In 2017, Simon‐Liedtke et al. provided guidelines for the design and evaluation of algorithms using daltonization method for colour compensation [43]. The details of the different state‐of‐art techniques existing in literature have been categorized in two types: (a) Subjective (SUB) that is subjective evaluation by evaluators and (b) Objective (OBJ) that is evaluation of algorithm through comparison with state‐of‐the‐art or simulated view of how colour blind would see.…”

Section: Review Of Existing Literaturementioning

confidence: 99%

“…A couple of authors have used Thurstone's Law of Comparative Judgment for seeking subjective feedback from the colour blind on the compensated images [41][42]. In 2017, Simon-Liedtke et al provided guidelines for the design and evaluation of algorithms using daltonization method for colour compensation [43]. The details of the different state-of-art techniques existing in litera-…”

Section: Review Of Existing Literaturementioning

confidence: 99%

A novel image quality assessment method and coefficient of quality for digital solutions of colour blindness

Swaminathan

Singla

2021

IET Image Processing

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Eyesight is one of the primary senses that human beings have. Reports show that colour blindness, a form of colour vision deficiency (CVD), affects about 8% of the male population and 0.5% of female population. The Assistive Technology Act of 2004 lays focus on technologies that help individuals with disabilities and deficiencies. With the rapid advancement in technologies, several assistive solutions are available for visually impaired or CVD patients. Such solutions involve simulation and compensation of conflicting colours to help the colour blind in the visual perception of colours. Given the increased usage of the web, post the pandemic, these solutions improve the quality of life for the colour blind. Defining the image quality assessment criteria for such digital solutions becomes imperative. The study proposes a novel method for image quality assessment of digital solutions aimed at assisting the colour blind users. The proposed coefficient of quality (CQ) would be useful to rank colour compensation and recolouring algorithms. Experiments were conducted with a novel questionnaire set designed for this quality measurement. The results affirm the efficiency of the assessment method proposed. This will also provide objective feedback to the researchers and experts in this area to improve their solutions for CVD patients.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Checklist for Daltonization methods: Requirements and characteristics of a good recolouring method

Cited by 11 publications

References 0 publications

Accessible maps for the color vision deficient observers: past and present knowledge and future possibilities

Accessible maps for the color vision deficient observers: past and present knowledge and future possibilities

An overview of the user experience in online video game players with colour vision deficiency

A novel image quality assessment method and coefficient of quality for digital solutions of colour blindness

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