And to have a 50% gray displayed, you need an image value of about 75% (you can see the red dotted line).
并有50%的灰色显示，则需要约75%的形象价值(你可以看到红色虚线)。
An improving noise eliminated difference template based on the analysis of object and background gray value also has been developed to eliminate the low frequency noise in image.
对图像中的低频噪声，基于对图像中目标与背景灰度值特点的分析，提出了改进的差分去噪声模板。
This paper introduces a new whole binarization method by using image gray statistical characteristic value as threshold.
本文给出了一种利用图像灰度统计特征值为阈值的全局二值化方法。
The image has been divided into several sections, the gray value of the largest, second and third of each section has been embeded watermarking by module 2.
将图像划分为若干节，对每节最大、第二、第三等三个灰度值分别采用模2法嵌入水印。
This paper presents a method and principle which employs pixel's gray value, pixel's energy value and pixel's fractal value as pheromone to segment image through simulation of ant colony behavior.
提出以像元的灰度值、能量值和分形维作为信息素的蚁群行为仿真的图像分割原理和方法。
Symbiotic Matrix and feature extraction in the application for two or gray value image feature extraction.
共生矩阵及其在特征提取中的应用，用于灰度或二值图象的特征提取中。
The latter carries on the processing of the gray value of each pixel directly at the two-dimensional space to which the image belongs.
后者是直接在图像所在的二维空间进行处理，即直接对每一象素的灰度值进行处理。
Once the interest points were detected, the image matching process in an image sequence is performed using local gray-value differential invariants.
在获得了兴趣点之后，利用兴趣点处的局部灰度差分不变量进行序列图像的点特征匹配。
After median filtering, image mode transforming, and "bad area" filtrating to images of soil layer, the authors extract the characteristic parameter of a image, that is gray-value, and c.
通过土壤表层图像的中值滤波、图像模式转换和“坏区”过滤，提取图像的特征参数——灰度值，并对土壤表层图像的灰度值与其含水率的关系进行了试验研究。
Based on maximum between-cluster variance method and uniformity measure, this paper USES maximum entropy principle to select the gray-level threshold value for image segmentation.
在最大类间方差法和一致性准则法的基础上，运用最大熵原理来选择灰度阈值对图像进行分割。
Since illumination condition effects recognition ratio for human face greatly, while average gray value of every face image is different, we must standardize gray value of face images.
由于人脸识别率受照明条件的影响较大，而各个人脸图像的平均灰度值各不相同，所以必须对人脸图像进行灰度归一化。
These operators make use of gradient and the mean value of the image gray to minimize noise effect, but ignore to harness the image edge.
这些算子使用梯度和梯度的平均值来达到去噪和边沿检测，但忽略了增强图像边沿。
Firstly, we detect the points of interest in a pair of images in image sequence, and then match the point set using the gray value differential invariants.
首先在序列的两幅图像中检测兴趣点，并运用灰度差分不变量进行两点集之间的匹配。
When the original image point multiply the transformation matrix, a new image position, the position may not integer, this position gray value by gray interpolation gain needed.
当原始图像点乘以变换矩阵，得到新的图像位置点时，其位置可能不是整数值，该位置的灰度值需要通过灰度插值获得。
For the regions in image where gray value is high or change intensely, local mean value and variance is adopted to control enhancement coefficients.
针对图像中的高灰度区和灰度剧变区，应用图像局部均值和方差自适应调节增强系数。
However, at present image used in the laser carving is processed by the method of calculating its gray value.
但目前对于用于雕刻的图像多采用传统的处理方式，即对图像的灰度值进行计算。
The image reconstruction algorithm based on RBF neural networks uses RBF networks to build the mapping relationship between the capacitance value and the image gray-scale value.
基于RBF神经网络的图像重建方法的实质就是用RBF神经网络建立电容测量值到图像灰度值的映射关系模型。
An approach for color image gray processing based on threshold of gray scale statistic mean value and global standard deviation of each color component is presented.
给出了一种基于图像各彩色分量灰度统计特征期望值和全局标准差作为阈值的彩色图像灰度化方法。
The relationships in various directions between the function, the sum of absolute value of gray difference of image, and the motion blur direction are studied for the first time in this paper.
本文首次研究了在不同方向的图像灰度差的绝对值之和与图像运动模糊方向的关系。在此基础上，提出了几种运动模糊图像清晰度评价函数，并研究了它们的优缺点和适用范围。
Fig. 1 Original infrared image (top), results of non-linear gray value transform (exponential transform) (middle), results of fragment linear gray value transform (bottom).
图1上部是原始红外图像，中部是非线性灰度(指数变换)变换结果，下部是分段线性变换结果。
Based on the mean value and variance, the image normalizing is to reduce the variations of gray between fingerprint ridges and furrows;
个体指纹被采集成指纹图像后，首先采用基于自身灰度均值和方差的规格化方法，降低指纹脊、谷线之间的灰度变化程度；
Based on the mean value and variance, the image normalizing is to reduce the variations of gray between fingerprint ridges and furrows;
个体指纹被采集成指纹图像后，首先采用基于自身灰度均值和方差的规格化方法，降低指纹脊、谷线之间的灰度变化程度；
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