Pigment chromatic adaptation in Cyclotella caspia Grunow (Bacillariophyta)
نویسندگان
چکیده
منابع مشابه
Chromatic Adaptation Model for Incomplete Chromatic Adaptation
When the adaptation level is not high enough, the maximum adaptation stimulus is not equal with the plot of illuminant. This property is accepted in this paper. Using this property, we propose a chromatic adaptation model for the level of adapting luminance and chromaticity in various surrounding illuminants. In this model, we calculate the maximum adapting responses using adapting degree for v...
متن کاملComputing chromatic adaptation
Most of today’s chromatic adaptation transforms (CATs) are based on a modified form of the von Kries chromatic adaptation model, which states that chromatic adaptation is an independent gain regulation of the three photoreceptors in the human visual system. However, modern CATs apply the scaling not in cone space, but use “sharper” sensors, i.e. sensors that have a narrower shape than cones. Th...
متن کاملChromatic adaptation of photosynthetic membranes.
Many biological membranes adapt in response to environmental conditions. We investigated how the composition and architecture of photosynthetic membranes of a bacterium change in response to light, using atomic force microscopy. Despite large modifications in the membrane composition, the local environment of core complexes remained unaltered, whereas specialized paracrystalline light-harvestin...
متن کاملAdaptation to textured chromatic fields.
Probe-flash threshold curves were used to show that adaptation to textured fields consists not only of adaptation to the steady local constituents but also of a process that is similar to habituation to prolonged temporal modulation, which in this case could be caused by miniature eye movements across element boundaries. The response curves derived from probe-flash thresholds are compressive on...
متن کاملEvaluating Chromatic Adaptation Transform Performance
The performance of many color science and imaging algorithms are evaluated based on their mean errors. However, if these errors are not normally distributed, statistical evaluations based on the mean are not appropriate performance metrics. We present a nonparametric method, called the Wilcoxon signed-rank test, which can be used to evaluate performance without making any underlying assumption ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Brazilian Journal of Oceanography
سال: 1991
ISSN: 1679-8759
DOI: 10.1590/s1679-87591991000200003