亮度

2 Is the angle from optical centerline where the luminous intensity is 1/2 the optical

1/2 是指当亮度减到一半时与发光特性曲线相交所对应的角度值。

The deduced just noticeable difference on natural image content can be used to normalize these four attributes and to further explore the image quality model.

利用实验结果可以将色彩度、亮度、对比度和清晰度等因素进行归一化和量化，从而建立包含上述4种因素的图像质量模型。

The proposed algorithm comprehensively considers the effects of local area average brightness of the background and space complexity on visual resolution. In order to judge whether the variance of gray is effectively percepted or not, the just noticeable difference is derived. The changes in the number of perceptible pixels between the original image and the enhanced image can be calculated by use of JND parameter. Thus quantitative results to assess the quality of enhanced images are obtained.

算法综合考虑图像局部区域的背景平均亮度和空间复杂度对视觉分辨力的影响，导出了用于判断局部灰度级跃变是否被有效感知的重要参数―临界可见偏差JND，并利用此参数分别计算出图像增强前后有效感知像素数的变化情况，从而定量地给出图像增强质量的评价结果。

An obsolete unit of luminous intensity, originally defined in terms of a wax candle with standard composition and equal to .02 candelas.Also called international candle

国际烛光：一种旧式亮度单位，原来以一根有标准构成的蜡烛来定义，等于。02坎德拉也作 international candle

At night the indirect lighting reflected off the curved ceiling, which added light and made it comfortable to work at home.

夜晚，灯光从曲面天花板反射下来，亮度更亮了，使在家里工作变得舒适。

Potentiometers Display brightness is related to the minimum?

显示器的亮度电位器是否关到最小？

The design of white LED array for illumination is proposed and prototyped.

中文摘要本论文研究并实现了用於照明灯具的高亮度白光LED阵列的设计。

A fisheye lens captures arcs of light crowning the Canadian wilderness.

一个鱼眼镜头获得弧形的无比的亮度在加拿大的荒野。

The Fisheye Super wide Lens is the only lens available that allows a 165 degreee field of view with this camera.

当它们跟INON 的Z-240闪灯组合起来的时候，用TTL方式曝光能轻易获得准确的亮度和色彩。

One important feature of human vision mechanism is that human vision tends to group together edges that are not only geometrically and topologically related,but also similar in their appearances-the appearances of image patches around them including their brightness,color,texture cues,etc.

人的视觉系统一个重要的特点，就是人眼在获得轮廓线的时候，不仅对轮廓线两侧图像的差异及轮廓线本身几何拓扑结构上有所考虑，同时也考虑到了轮廓线周围区域图像的特性(图像的亮度、颜色、纹理等特征)的连续性。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷