Is it really possible to compensate for colour blindness with a filter?

Valero, Eva M.; Huertas, Rafael; Martínez-Domingo, Miguel Angel; Gómez‐Robledo, Luis; Hernández‐Andrés, Javier; Nieves, Juan Luis; Romero, Javier

doi:10.1111/cote.12505

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…As CVD is not treatable [23] therefore there is a larger emphasis on developing useful coping strategies for this group and also on whether deficiency-specific managing advice can be PLOS ONE generated [24]. The results from this study indicate that for specific colour combinations, the visual search performance index of individuals with CVD can be significantly improved by increasing chromatic saturation.…”

Section: Plos Onementioning

confidence: 88%

The impact of display saturation on visual search performance in congenital colour vision deficiency

Hathibelagal

2023

PLoS ONE

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Background Colour-related search tasks are common in many professional fields. The study investigated whether increasing chromatic saturation can enhance the visual performance of individuals with colour vision deficiency (CVD) in colour-related search tasks. Methods 10 normal trichromats (5M, 5F; Mean (SD) age: 23.1 (3.3) years) and 15 individuals with CVD [8 deutans and 7 protans identified by HRR plates] (14M, 1F; aged 28.6 (8.7) years) participated in this study. Four naturalistic sceneries of everyday tasks/ birds, animals and flowers of 15 different colour combinations (1 pair of colours in each combination. e.g., ‘brown/black’ or ‘red/green’) were presented in ‘low’ saturation, ‘original’ (unaltered images) and ‘high’ saturation condition using the Psychopy program on a colour-calibrated monitor. On each trial, the subject was asked to identify a specific-coloured target. Results Overall, the visual search performance index (expressed as product of accuracy and a reciprocal of reaction time (%correct*s-1) of the normal trichromats [Mean (SD):77.76% correct*s-1 (16.32)] was significantly higher than CVD [45.71% correct*s-1 (18.95)] in the “original” test images (p = 0.001), but in individuals with CVD, there was no significant difference between ‘original’ [45.71% correct*s-1 (18.95)] and ‘high’ saturation condition ([47.43% correct*s-1 (20.07)]; p > 0.05). However, colour-wise, increased saturation showed improvements (≥ 10%) in protans mainly for ‘red’ combinations with other colours such as white (i.e., ‘red/white’), purple, orange, grey, green, brown and black. Conclusion The study suggests that increasing the saturation of certain colour combinations can potentially aid in the visual search performance of individuals with CVD. This knowledge will help in better counselling and management of the patients.

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Section: Plos Onementioning

confidence: 88%

The impact of display saturation on visual search performance in congenital colour vision deficiency

Hathibelagal

2023

PLoS ONE

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CVD-MET: an image difference metric designed for analysis of color vision deficiency aids

Muñoz-Postigo¹,

Valero²,

Martínez-Domingo³

et al. 2022

Opt. Express

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Color vision deficiency (CVD) has gained in relevance in the last decade, with a surge of proposals for aid systems that aim to improve the color discrimination capabilities of CVD subjects. This paper focuses on the proposal of a new metric called CVD-MET, that can evaluate the efficiency and naturalness of these systems through a set of images using a simulation of the subject’s vision. In the simulation, the effect of chromatic adaptation is introduced via CIECAM02, which is relevant for the evaluation of passive aids (color filters). To demonstrate the potential of the CVD-MET, an evaluation of a representative set of passive and active aids is carried out both with conventional image quality metrics and with CVD-MET. The results suggest that the active aids (recoloration algorithms) are in general more efficient and produce more natural images, although the changes that are introduced do not shift the CVD’s perception of the scene towards the normal observer’s perception.

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Aids for color vision deficiency: introduction to the feature issue

Valero¹,

Drum

Neitz³

2022

Opt. Express

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Approximately 8% of Caucasian males and 0.5% of females have congenital red-green color vision deficiencies (CVD), and a number of eye diseases are accompanied by acquired CVD. This feature issue includes ten contributions regarding existing and proposed algorithms and devices intended to help CVD subjects compensate for their color deficiencies. It also addresses limitations in the effectiveness of CVD aids for subjects with different types and degrees of color vision deficiency.

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Is it really possible to compensate for colour blindness with a filter?

Cited by 3 publications

References 29 publications

The impact of display saturation on visual search performance in congenital colour vision deficiency

The impact of display saturation on visual search performance in congenital colour vision deficiency

CVD-MET: an image difference metric designed for analysis of color vision deficiency aids

Aids for color vision deficiency: introduction to the feature issue

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