The image enhancement problem for degraded images with less gray levels and low contrasts.
灰度等级少、对比度低的降质图像增强问题。
For low gray image, the float gray level codes are combined to the binary coded gray levels by the error diffusion method.
然后利用误差扩散方法将浮动灰度编码所包含的低灰度级图像信息融合到用于显示的子场编码中。
By increasing the intervals of gray levels, enhancing gray contrast is implemented by the traditional gray enhancement algorithms.
传统的图像灰度增强方法通过增大灰度级别的间距来达到增加图像灰度对比度的目的。
Researched the reason why PV interpolation may lead to wrong registration, and suggested to reduce gray levels to avoid the problem.
研究了PV插值法导致错误配准的原因，提出了通过调整灰度级数来避免。
Secondly, in order to improve the correction of image matching, the effect of different gray levels on mutual information is discussed later.
其次，为了提高互信息匹配的正确率，研究了分灰度阶估算的方法，并探讨这种方法对互信息匹配造成的各种影响。
One objective of lighting is to separate the feature or part you want to inspect from the surrounding background by as many gray levels as possible.
一个目标性的灯光是以尽可能多的灰度由四周的背景中去分开这特征或你想观察的部份。
This paper presents a method for analyzing the ultrasonic liver images textures. The texture signature is taken to be a complexity of image gray levels.
本文提出一种复杂性度量法对肝脏B超图像纹理的分类进行了研究，图像的灰度值复杂性作为纹理特征。
Gray levels are very important to the qualification of display devices like LCD. We have discussed some methods of the realization of gray levels of LCDs.
本文讨论了液晶显示中实现灰度的几种办法，特别是在只有二个或数个灰度级的显示器中实现灰度显示的几种伪灰度级显示办法。
The histogram equalization can enhance the contrast by redistributing the gray levels, it has the drawback that it reduces the information in the processed image.
直方图均衡可以使图像灰度分布接近均匀，提高图像对比度，但图像的信息量会有一定程度的损失。
Simulation results show that this method can greatly reduce dynamic false contour and overcome the shortcoming of insufficient gray levels in pure stretched-out coding display.
仿真结果显示，此法能够良好地抑制动态伪轮廓，并且有助于克服单纯延伸编码显示灰度级不足的缺点。
In essence, the algorithm is the extension of those algorithms which segment object in a textured background by assuming the average gray levels of the object and the background are different.
这种算法本质上是从灰度分布来分割物体的算法的推广，它不仅适用于背景纹理灰度与物体表面灰度不同的图象，而且适用于背景平均灰度与物体表面平均灰度相同的图象。
According to the characters of the images, the algorithm separated image into several regions by K-means clustering algorithm, and each region is equalized respectively within their gray levels.
该算法基于图像的特点，利用K均值聚类算法将图像分成几个灰度区间，然后再分别进行均衡化。
Air quality levels are analyzed in each city use of gray statistical strategy. The type of urban air pollution is judged by burden rate, which is calculated by the Shanghai air quality index.
利用灰色统计模型分析了各城市空气质量等级，用上海大气质量指数法计算出污染负担率，然后根据污染负担率判断城市空气污染类型。
Air quality levels are analyzed in each city use of gray statistical strategy. The type of urban air pollution is judged by burden rate, which is calculated by the Shanghai air quality index.
利用灰色统计模型分析了各城市空气质量等级，用上海大气质量指数法计算出污染负担率，然后根据污染负担率判断城市空气污染类型。
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