In most of cases, the laser scanning confocal microscopy images, such as fluorescence stained biomedical nuclei, are blurred and have a wide range of brightness and poor intensity homogeneity.
共焦显微图象如荧光染色细胞核图象，往往是一种比较模糊的图象，并且亮度范围大，灰度均匀度也较差。
At left, you can see that most digital cameras struggle when there are very bright brights and very dark darks in the same photo; they don’t perceive as wide a range of brightness as your eye does.
左边那张是多数普通数码相机照出的效果，要么非常的亮，要么非常的暗，它不能像你的眼睛一样有很广的感光范围。
The numbers are part of a grayscale system in which brightness is measured in a range of values.
这些数字是灰度系统的一部分，其亮度由一系列数值测量。
Additionally, the eye is more sensitive to brightness differences at the low end of the range than at the high end.
此外，眼睛在该范围看低处的亮度差异比在高处更敏感。
The tonal range of the image is graphed according to its brightness value.
它的排列范围就是图像明亮程度的梯度反映。
When the detection range of the IR thermal imager is calculated by using NETD, the target radiation brightness difference must be calculated in the operating wave band.
在采用NETD计算红外热像仪的探测距离时，需要计算目标在热像仪探测波段范围内的辐射亮度差。
Use the built-in threshold feature to quickly find the black and white points of your image, and to adjust the brightness range images that lack a proper shadow or highlight.
使用内置的阈值功能迅速找到图片的黑，白点，并调整图像亮度范围缺乏适当的阴影或亮点。
Use the built-in threshold feature to quickly find the black and white points of your image, and to adjust the brightness range images that lack a proper shadow or highlight.
使用内置的阈值功能迅速找到图片的黑，白点，并调整图像亮度范围缺乏适当的阴影或亮点。
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