Personalized Image Recoloring for Color Vision Deficiency Compensation

Abstract

Several image recoloring methods have been proposed to compensate for the loss of contrast caused by color vision deficiency (CVD). However, these methods only work for dichromacy (a case in which one of the three types of cone cells loses its function completely), while the majority of CVD is anomalous trichromacy (another case in which one of the three types of cone cells partially loses its function). In this paper, a novel degree-adaptable recoloring algorithm is presented, which recolors images by minimizing an objective function constrained by contrast enhancement and naturalness preservation. To assess the effectiveness of the proposed method, a quantitative evaluation using common metrics and subjective studies involving 14 volunteers with varying degrees of CVD are conducted. The results of the evaluation experiment show that the proposed personalized recoloring method outperforms the stateof-the-art methods, achieving desirable contrast enhancement adapted to different degrees of CVD while preserving naturalness as much as possible.

Personalizing image enhancement for critical visual tasks: improved legibility of papyri using color processing and visual illusions

“…The several types and degrees of colorblindness (affecting about eight percent of males and one percent of females of European ancestry [120, 135, pp. 222-223]) have spurred the development of a further class of demographic-specific image enhancement techniques intended to simulate color vision deficiency for the normal-sighted [116,186], as well as enhancing the color perception of the colorblind [53,150,196].…”

Fast Image Recoloring for Red-Green Anomalous Trichromacy with Contrast Enhancement and Naturalness Preservation

“…In this study, qualitative and quantitative evaluation experiments were conducted, comparing the proposed method with Huang et al's method [14] and the stateof-the-art method [34]. Additionally, subjective experiment were conducted to compare the state-of-the-art method [34] with the proposed method.…”

“…6 and Fig. 7 show examples of compensation results for different degrees of the protan and deutan defects using existing methods [14,34] and the proposed method, respectively. In Fig.…”

“…A state-of-the-art recoloring method for anomalous trichromacy is proposed by Zhu et al [34] that recolors images by minimizing the objective function that is influenced by naturalness preservation and contrast enhancement constraints. Zhu et al [34] implemented their recoloring model in the RGB color space, where the distance between two colors is not uniform when perceived by humans. As shown in Fig.…”

9.4: Plasmonic Nanostructure‐Loaded filtering film for Color Blindness Management

“…To satisfy the requirement of CVD individuals' perceptual experience, color naturalness is considered in critical analysis of the recoloring methods. Quantitative evaluation system of color contrast and naturalness was widely used in evaluation [4][5][6][7]. However, generally speaking, this method can not applied in public display for the customized requirements for each CVD subjects.…”