1) gray-weighted gradient operator
灰度加权梯度算子
1.
The gray-weighted gradient operator was introduced to extract the transition regions in image and meanwhile suppress the noise.
采用新的灰度加权梯度算子对细化后的图像提取过渡区,能较好地抑制图像噪声。
2) gradient addition method
梯度加权算法
1.
In order to get a better fusion result of remote sensing images,we unified multiwavelet transform and the two systems,takeing GHM multiwavelet as the example,using gradient addition method,programming by Matlab,and got the advantages and disadvantages of the two systems unified by multiwavelet transform.
为了得到高质量遥感图像的融合效果,将多小波变换分别和2种系统结合,以GHM多小波为例,采用梯度加权算法,通过Matlab编程实验,得出了多小波变换和2种系统结合的各自优缺点,突出了多小波变换和RGB系统相结合的优势,实验结果明显。
5) Gray summing operator
灰度累加算子
6) gradient operator
梯度算子
1.
Algorithm for Edge Detection Based on Fast Weighting Gradient Operator;
基于快速加权梯度算子的边缘检测
2.
Finally,the whole continuous and close face contour is obtained by extracting upper face contour in the face region and by extracting chin contour through a gradient operator.
文章提出了一种新的正面人脸封闭轮廓提取方法,首先采用肤色模型对肤色区域进行初定位,然后经过筛选去除非人脸区域,最后提取人脸初步轮廓,并结合梯度算子提取下巴轮廓,进而得到一个连续、封闭的人脸轮廓。
3.
Meanwhile, the problem of solutions to second order system and a type of gradient operators equations in Hilbert space are studied by means of critical point theory.
本文利用重合度拓展定理研究二阶中立型泛函微分方程周期解的存在性,利用临界点理论中的归药方法、极小作用原理、变分方法研究二阶非自治系统及Hilbert空间中梯度算子方程解的存在性,获得了许多新的结果。
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参考词条