gray value

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。

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By the method of binary wavelet transform, character edge point can be attained in the best scale. Binary threshold can be selected by character edge point gray value.

通过对图像进行二进小波变换，在最佳尺度上寻找出图像字符的边缘点，再根据边缘点处的灰度值来确定出二值化的阈值。

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a gray-level image registration algorithm for dsa image based on subtraction histogram and gray value shift mesh

基于直方图信息和灰度偏移网格的数字减影图像灰度矫正算法

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this function can use a variety of different parameters (to define a gray value, or a red-green-blue [rgb] color).

此函数可以使用各种不同的参数（来定义一个灰度值或Red-Green-Blue[RGB]颜色）。

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Background and external defects segmentation of navel orange based on mask and edge gray value compensation algorithm

基于掩模及边缘灰度补偿算法的脐橙背景及表面缺陷分割

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by setting up the corresponding relation between gray value and transmission ratio in fiber panel image, and using image capturing, image processing and area ccd imaging technology, the system used for measuring the transmission ratio distribution of optical fiber panel was designed.

通过建立光纤面板图像中的透过率与灰度的对应关系，运用数字图像采集、处理技术和面阵CCD成像技术，设计了用于测量光纤面板透过率分布的实验系统。

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in the infrared image the gray value of object regions is always higher and the background which has uniform distribution.

因为目标区域的灰度总是高于背景的灰度，并且目标周围的背景往往具有比较均匀的分布。

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The impulse noise is removed using the modified median filtering, while signal pixels hold their gray value and are left unprocessed.

而信号点则保留其灰度值不予处理。

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The points of interest are those of useful low level features where the image gray value changes bi dimensionally.

兴趣点是图像灰度在x，y两个方向上都有很大变化的一类特征点。

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There is spatial correlation between the neighbored pixels , so there is the adjacent gray value.

大多数图象具有空间相关性, 绝大部分相邻的象素点具有相近的灰度值.

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Digital image refers to digital cameras, scanners and other equipment have been sampled and digitized to be a large two-dimensional array, the array of elements called pixels, and its value as an integer, known as the gray value.

数字图像是指用数字摄像机、扫描仪等设备经过采样和数字化得到的一个大的二维数组，该数组的元素称为像素，其值为一整数，称为灰度值。

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