灰度信息

词组短语

half-tone

与灰度信息相关的网络例句 [注：此内容来源于网络，仅供参考]

The author used the fractal dimension method to calculate the texture fractal characteristics of meteorological cloud pictures with the methods of Sarkar and Chaudhuri.

气象卫星云图的识别主要集中在图像纹理分析上，图像纹理除了包括灰度信息外，还包含了结构信息应用70年代由曼德尔勃罗特Mandelbrot提出的分数维的概念，对图像纹理进行的分析表明，分数维是图像纹理的复杂度与粗糙度的变量作者将Sarkar和Chaudhuri的分数维计算方法应用于纹理分形特征的计算，取得了较好的效果

In order to mine the structure difference of the chinese and english characters,the gradient information of the pixel based horizontal and vertical stroke vector,gradient orientation correlogram and the relative gray information of the location correlation pixels based census transform histogram are used,they can be robust to illumination,noise and resolution and so on,and can be applied to camera-based images.

为了能够很好地挖掘中英文字符之间的结构差异，提出采用基于象素梯度信息的水平垂直笔画向量和梯度方向相关图，以及基于位置相关象素的相对灰度信息的Census变换直方图，它们对光照、噪声以及分辨率等都具有良好的鲁棒性，可以应用于基于相机的图像。

On the basis of image segmentation by complexion and gray information,some rough facial feature contours can be outlined by seed-filling the non-complexional regions.Then a modified color Snake model was used to fine-draw the rough contours.

根据肤色和灰度信息，在图像分割的基础上，利用种子填充技术获得面部各非肤色特征的轮廓初值；然后采用一种改进的彩色Snake模型对轮廓初值进行精确定位；接着，根据人脸的先验知识，利用含有方向信息的形态学边缘检测算子通过一次逐点考察完成下颚轮廓线的提取。

In the matching stage, the angle of feature vectors is used as the similarity measure in the high dimensional space directly. This similarity measure is invariant to the linear transformation of feature vectors. Compared with SIFT and normalized correlation, the proposed method needs no primary features such as edges, corners, gradient or shapes which are very unstable in low contrast and low NSR images.

在匹配过程中，以向量之间夹角的大小作为相似度度量，直接利用图像的灰度信息在高维向量空间中考虑图像之间的相似度，克服了在低照度、低信噪比的图像中求边缘、角点、梯度和形状等特征的困难，不受向量模大小以及向量平移的影响，即相似度的计算是线性光照不变的。

In the fuzzy inverse mapping,the use of gray expansion of the inverse transforms function can improve the enhancement effect;eliminate the cut-off gray-scale brought about by the loss of information.

在模糊逆映射上，采用灰度级扩展的逆变换函数，使增强效果进一步提升，消除了由于截断带来的灰度信息损失。

Endowed with a Riemannian metric derived from the gray scale information of a given image, the image space became a Riemannian manifold. On this Riemannian manifold, we evolved a curve by the mean curvature flow using the level set methods.

在图像空间上直接赋予一种由图像灰度信息导出的黎曼度量，使之成为黎曼流形，然后在此黎曼流形上利用水平集方法对曲线以平均曲率流进行演化。

To provide credible data for empirical model,a method of calculating the weighted average gray value of compartment area was designed in this paper.It worked especially when the compartment area was as large as pixel.The GeoTIFF form was adopted as the RS data type.The Matlab software was used to read and store RS image.The pixel was divided into smaller units to calculate the area of spackle in each pixel by counting the amount of the units.

：为了给遥感反演模型提供可靠数据，该文设计了一种按面积加权计算不规则图斑遥感影像灰度值的方法，特别是当图斑面积接近像元大小的时候；遥感数据采用被广泛支持的GeoTIFF格式，使用Matlab将遥感影像的灰度信息及元数据读取并存入数据库中；通过将像元分解成更小的单元，统计各像元在图斑内小单元的个数，计算图斑在各像元所占的面积，按照面积加权的方式计算得到图斑的平均灰度值。

Second, we point out that the AAM model contains redundant information between the shape and the texture on the basis of the study of AAM model. We remove the unsoundness, directly establish the relationship between the shape and texture, use texture to determine the shape, then establish PCA model of the difference image, and use this model to predict the next position to get the texture information form this position, and redetermine the shape and its position.

其次，在深入研究AAM模型的基础上，本文指出了AAM模型的形象模型包含了冗余信息，并对此进行改进，直接在形状和灰度之间建立起联系，由灰度确定形状，然后再对差分图象建立起PCA模型，由此模型预测下一步的位置变化，在从此位置上获得灰度信息，重新确定形状及其位置。

Having dyadic and recursive subdivision on image,having integral on Beamlet in each sub-square,the straight lines were approximated under GLRT and reconstructed.

利用一种Beamlet变换算法来提取遥感图像中的线性特征，通过对遥感图像按二进、递归进行划分，利用灰度信息，积分计算每一小块图像中的Beamlets，结合梯度信息，通过广义似然比检验GLRT(generalized likeli-hood ratio testing)来检测判断符合条件假设的Beamlets，重建线性目标。

This approach encrypts digital image hy permuting on bitmap after pretreatment,and decryption pixels＇ values of the image which is attacked by shear transformation is computed by using neighboring pixels＇ values,it can protect the encryption image from shear transformation attack.A binary sequence nonlinear generating method based on chaotic system is also presented.

基于数字图像灰度矩阵位平面进行置乱加密，在恢复过程中通过象素邻域灰度信息进行恢复，能够有效抵御针对加密图像的剪切变换攻击，同时给出了一种非线性的、应用高维混沌系统产生二值序列的方法。

与灰度信息相关的网络解释 [注：此内容来源于网络，仅供参考]

bitmap：位图模式

③位图模式--(bitmap)位图即黑白图,1(位图)通道,1位,一些编辑工具和全部滤镜不可用,不可建图层,只有从灰度模式才可以转换为位图模式. ④灰度模式--(grayscale)灰度图,1通道,8位,256种色调,彩色模式转换为灰度模式颜色信息丢失而不可逆.

grayscale：灰度模式

③位图模式--(bitmap)位图即黑白图,1(位图)通道,1位,一些编辑工具和全部滤镜不可用,不可建图层,只有从灰度模式才可以转换为位图模式. ④灰度模式--(grayscale)灰度图,1通道,8位,256种色调,彩色模式转换为灰度模式颜色信息丢失而不可逆.

Invariance：变性

最近的这些方法虽然在重复率(Repeatability)、独特性(Distinctiveness)、局部性(Locality)、精度(Accuracy)、不变性(Invariance)等方面有不错的性能,其共同缺陷在于实时性能较差,它们的时间和空间复杂度较高,这是由于它们都是基于灰度信息的.

missing：丢失

RAW处理软件利用这些元数据(metadata),经过对通过周围像素信息把"丢失(missing)"的颜色信息插值计算出来,就可以把原始的灰度图像转换为彩色图像. .白平衡. 相机里面设定的白平衡功能对于RAW而言是全无作用的,