Foster David H, Nascimento Sérgio M C
Department of Electrical and Electronic Engineering, University of Manchester, Manchester M13 9PL, UK.
Physics Center of Minho and Porto Universities (CF-UM-UP), University of Minho, 4710-057 Braga, Portugal.
iScience. 2023 Jul 18;26(8):107421. doi: 10.1016/j.isci.2023.107421. eCollection 2023 Aug 18.
Inherited color vision deficiency affects red-green discrimination in about one in twelve men from European populations. Its effects have been studied mainly in primitive foraging but also in detecting blushing and breaking camouflage. Yet there is no obvious relationship between these specific tasks and vision in the real world. The aim here was to quantify the impact of color vision deficiency by estimating computationally the information available to observers about colored surfaces in natural scenes. With representative independent sets of 50 and 100 hyperspectral images, estimated information was found to be only a little less in red-green color vision deficiency than in normal trichromacy. Colorimetric analyses revealed the importance of large lightness variations within scenes, small redness-greenness variations, and uneven frequencies of different colored surfaces. While red-green color vision deficiency poses challenges in some tasks, it has much less effect on gaining information from natural environments.
在欧洲人群中，约十二分之一的男性患有遗传性色觉缺陷，这会影响红绿色辨别能力。对其影响的研究主要集中在原始觅食活动中，不过也涉及到检测脸红和识破伪装方面。然而，这些特定任务与现实世界中的视觉之间并没有明显的关联。此处的目的是通过计算估计观察者在自然场景中获取的有关有色表面的信息，来量化色觉缺陷的影响。利用50张和100张具有代表性的独立高光谱图像集，研究发现红绿色觉缺陷者所获得的信息仅比正常三色视觉者略少。色度分析揭示了场景内大的明度变化、小的红绿色变化以及不同颜色表面不均匀的频率的重要性。虽然红绿色觉缺陷在某些任务中带来了挑战，但它对从自然环境中获取信息的影响要小得多。
