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首页> 外文期刊>Journal of vision >Canceling a Hue of a Negative Afterimage in Solid and Perceptually-Filled Color Images
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Canceling a Hue of a Negative Afterimage in Solid and Perceptually-Filled Color Images

机译：消除实心和可感知填充的彩色图像中负残像的色相

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A negative afterimage is perceived as having a color a??oppositea?? to those of the adapting stimulus. We investigated the effects of afterimages on the perception of color stimuli, as well as their effects on spatial chromatic induction. Anstis et al. ( 1976) showed that the effects of direct light stimulation could be integrated with the chromatic perception resulting from temporal (color adaptation) and spatial color contrast. This could be an additive interaction, meaning that a negative afterimage could be canceled either by light of the same chromaticity or by a complementary surround. In a series of hue cancellation experiments, observers judged the chromatic neutrality of a test after adapting to a colored image. In the experiments with direct light stimulation, observers were instructed to change the saturation of the test stimulus, which had the same hue as the adapting light, until the test figure appeared chromatically neutral. The spatial contrast procedure was similar except that observers adjusted the surround of the test stimulus to cancel the afterimage using spatial chromatic induction; in this case, the surround hue was complementary to the adapting stimulus. Results show that afterimages are either not complementary, do not mix additively with color stimuli, or both. For many of the adapting colors, the hue of the subsequent test did not appear neutral at the observera??s settings; observers were able to reduce the saturation of the test but not make it look grey. This non-complementarity was most pronounced in the afterimage of a blue stimulus. However in afterimages caused by perceptually-filled (neon color) stimuli, the interactions were more like additive mixing and the final percept came closer to chromatic neutrality. This difference may be related to the tendency of afterimages to be perceived as filters over solid stimuli while additively mixing with perceptually-filled surfaces from neon stimuli.
机译：负残像被认为具有“相反”的颜色。那些适应性刺激。我们调查了残像对色彩刺激感知的影响，以及它们对空间色诱导的影响。 Anstis等。 （1976）表明，直接光刺激的影响可以与由时间（色彩适应）和空间色彩对比度产生的色觉整合在一起。这可能是加性相互作用，这意味着可以用相同色度的光或互补的周围环境消除负余像。在一系列的色相消除实验中，观察者在适应彩色图像后判断了测试的色中性。在直接光刺激的实验中，指示观察者改变测试刺激的饱和度，该饱和度与适应光的色调相同，直到测试图呈现色中性。除了观察者使用空间色诱导来调整测试刺激的周围以消除残像外，空间对比过程相似。在这种情况下，周围的色调是对适应性刺激的补充。结果表明，残像要么不是互补的，要么不与色彩刺激相加，或者两者兼而有之。对于许多适应性颜色，后续测试的色相在观察者的设置下并未显得中性。观察者能够降低测试的饱和度，但无法使其看起来呈灰色。这种非互补性在蓝色刺激的余像中最为明显。但是，在由感知填充（霓虹色）刺激引起的残像中，相互作用更像添加剂混合，最终感知更接近于色中性。这种差异可能与余像被视为对固体刺激的过滤器，同时与来自霓虹灯刺激的感知填充表面进行混合的趋势有关。

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