在计算机模型中，它们具有极低温低亮度和反常的颜色。
Computer models characterized them with unusually cool temperatures, low brightness and atypical color.
比如仅通过大脑的活动一项他的模型就能推断出一个图像的总体亮度。
Starting from brain activity alone, his model should be able to deduce, for example, an image's overall brightness.
在特征提取中，综合考虑了目标区域的对比度、面积、位置、轮廓、形状和亮度均匀性等特征量，建立了一种新的斑痕缺陷模型。
In feature extraction, a new "blemish" model is proposed, which takes several features into account, such as the contrast, area, location, outline, shape and the luminance uniformity of the object.
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