The gray value of signal point is unchanged.
对信号点不加处理，灰度值不变。
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 smaller the gray value, the higher the staining degree was, and the more the immune deposition of VCAM 1 was.
利用计算机图像分析仪进行灰度扫描，灰度值越小，染色程度越高，即血管细胞黏附因子1的免疫沉积越多。
Only considering the gray value of objects is not sufficient to extract the thematic information-objects boundary.
仅仅考虑灰度差异并不能满足专题信息地物边缘提取的需要。
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。
For less than the threshold gray value directly set pixel gray value of 0 gray value greater than the threshold value is set to 255 pixels directly.
对于灰度值小于阈值的象素直接设置灰度值为0；灰度值大于阈值的象素直接设置为255。
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。
The current applied range of digital watermarking technique is limited greatly because the gray value images are widely selected as original images.
目前，数字水印技术研究所选取的原始图像仍以灰度图像为主，这样就使得数字水印技术的应用范围受到极大的限制。
According to the changes of gray value range of images pollute by salt and pepper noise, this paper proposed an improved weighted mean filtering algorithm.
根据椒盐噪声污染图像灰度值取值范围的变化，提出了一种改进的加权均值滤波算法。
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。
According to the second-order difference of the consecutive pixels, the source pixel group is automatically selected to compute the corresponding target pixel gray value.
该算法以相邻像素的二阶差分为基础，自动选择与目标像素点相对应的源像素组进行插值运算。
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。
Remote sensing images indicate the physical objects with different attributes and their distribution through pixel gray value differences and the level of spatial variation.
遥感图像通过像元灰度值的高低差异和空间变化来表示不同属性的地物目标及其分布情况。
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。
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。
This paper does some experiments and analysis on the single pixel gray value of natural images. We find that lognormal distribution can be used for the coarse and simple model of single pixel gray.
本文针对自然图象中单像素灰度值的统计规律进行实验和分析，发现对数正态分布可以对之进行粗略、简单的建模。
The circular interpolated points with given gray-value are extracted as the verge of the spot.
并提取一定灰度值的光斑圆周插值点，作为圆形光斑边缘。
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。
According to continuity of gray-value of targets in inter-frame, the frame-difference method is proposed to detect the moving objects in this paper.
考虑到视频序列图像具有帧间连续性，本文通过帧间差分的方法检测运动车辆。
According to continuity of gray-value of targets in inter-frame, the frame-difference method is proposed to detect the moving objects in this paper.
考虑到视频序列图像具有帧间连续性，本文通过帧间差分的方法检测运动车辆。
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