Description: ％ SSOR预处理的共轭梯度法求解方程Ax=b
％ 输入参数说明
％ A 正定矩阵[n*n]
％ b 右边向量
％ omega SSOR预处理参数(0--2)
％ Times 迭代次数
％ errtol 给定误差终止条件
％
％输出参数
％ NewX 方程Ax=b的x近似解
％ avgerr 求解的当前平均绝对误差- SSOR preconditioning conjugate gradient method for solving equations Ax = b the input parameter descriptions A positive definite matrix [n* n] b right side vector omega SSOR preconditioning parameters (0- 2) Times iterations errtol termination of a given error condition NewX output parameter equation Ax = b of x approximate solution to solve the current avgerr average absolute error Platform: |
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Author:zhxj |
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Description: 计算图像的平均梯度，边缘强度，信息熵以及方差，图像可以是单波段或多波段图像。-Calculation of the average image gradient, edge strength, information entropy and the variance, images can be single-band or multi-band image. Platform: |
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Author:dabin |
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Description: 自己编写的图像质量评价函数，包括方差、平均梯度、模糊熵、信息熵-I have written the image quality evaluation function, including the variance, with an average gradient, fuzzy entropy, information entropy Platform: |
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Author:llb |
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Description: 各种基本图像处理功能：1、格式转换：将RAW格式转换成BMP格式；2、线性变换；3、图像平滑；4、图像增强；5、边缘检测：梯度算子，Robert梯度算子，Prewitt算子，Laplacian算子，Sobel算子，Marr算子；6、直方图显示；7、形态运算（二值化、腐蚀、膨胀、开运算、闭运算）；8、自动分类及类别提取：K均值分类。其中：1.2.3.4.5.7仅能对灰度图处理，6.8不仅能处理灰度图还能处理彩色图-Basic image processing functions: 1, format: RAW format will be converted to BMP format 2, linear transformation 3, image smoothing 4, image enhancement 5, Edge Detection: Gradient Operator, Robert gradient operator, Prewitt operator, Laplacian operator, Sobel operator, Marr operator 6, histogram display 7, computing forms (two-value, corrosion, swelling, open computing, closing operation) 8, automatic classification and type of extract: K-means classification. One of: 1.2.3.4.5.7 only treatment for grayscale, 6.8 can not only deal with deal with grayscale color map Platform: |
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Description: 本文通过融合图像的颜色和梯度特征 ,实现了一种实时背景减除方法。首先融合颜色和梯度特征建立新的能量函数 然后基于图切割算法最小化能量函数 ,并对前景P 背景进行分割 最后使用光流验证前景区域的真实性 ,并更新背景模型。- Based on the fusion of color and gradient features , this paper implement s a novel approach to real-time background subtraction.Firstly , an energy function is defined based on the fusion of color and gradient features. Secondly , the graph cut s based algorithm is employed to minimize energy function and segment the foreground. Finally , average optical flow is used to make inference about the validity of foreground regions , background models are then updated.
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Description: 图像参数统计小程序，可用于统计图像的均值，标准差，图像的信息熵，平均梯度。简单易用。-Image parameter statistics applets can be used for statistical picture of the mean, standard deviation, the image of the information entropy, average gradient. Easy to use. Platform: |
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Author: |
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Description: 此程序基于matlab环境，实现小波、PCA、像素选大选小融合并有信息熵、平均梯度等融合评价标准-This program is based on matlab environment, and wavelet, PCA, pixel selection and integration of the election have little information entropy, average gradient of integration evaluation criteria Platform: |
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Author:hahajing |
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Description: 图像增强后的标准公式，有方差，平均梯度，还有均值等。-Standard formula for enhanced images, there is variance, average gradient, and mean and so on. Platform: |
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Author:wei205 |
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Description: 本文阐述了基于主元分析的拉普拉斯金字塔图像融合的原理和方法:首先对原图像分别进行拉普拉斯
金字塔分解,然后分别对高频部分采用主元分析（PCA）法融合,对低频部分采用平均梯度法进行融合,最后对
拉普拉斯金字塔做反变换得到最终的融合图像。通过对可见光与红外图像的融合，以及对不同焦距图像融合
的结果分析，该算法比单纯的PCA和拉普拉斯图像融合能得到具有更多有用信息的高对比度的融合图像-In this paper, principal component analysis based on the Laplacian pyramid image fusion of theory and method: First, the original image, respectively Laplacian pyramid decomposition, and then were used for high-frequency part of the principal component analysis (PCA) fusion method for The average gradient method using low-frequency part of the fusion, the last of the Laplacian pyramid to do the inverse transform to get the final fused image. Through the integration of visual and infrared images, as well as the results of image fusion of different focal length of the algorithm than the simple PCA and Laplacian image fusion can get more useful information with the integration of high-contrast images Platform: |
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Description: 有关于求取图像平均梯度的matlab M 文件；可以为你省去那么一点时间。 ———共享改变未来！-To strike the image on the average gradient matlab M documents can save you a bit of time.--- Shared change the future!--- Platform: |
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Description: 单幅图像的平均梯度值计算 MATLAB源程序 【更新】2009-04-15 15:59说明：该程序的作用是计算输入图像img的平均梯度值AVEGRAD
平均梯度值可以衡量图像细节反差表达的能力，是图形融合结果的一个评价算子之一-Single image, the average gradient value MATLAB source code [update] 2009-04-15 15:59 Description: The role of the program is to calculate the average gradient of the input image img to the value of the average gradient value can be measured AVEGRAD image detail contrast presentation skills, and is a graphic fusion of operator evaluation Platform: |
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Author:庞涛 |
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Description: 1.图像尺度转换，降低图像分辨率，采用局部平均法、中值法；2.图像质量评价：均值、标准差、信息熵、平均梯度-1.Image scaling, reducing image resolution, using a local average、median method；2.Image quality assessment: the mean, standard deviation, entropy, average gradient
Platform: |
Size: 1024 |
Author:liuyoushan |
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Description: 这是从网上整理出来的图像融合评价标准，总共有13项性能指标。包括平均梯度，边缘强度，信息熵，灰度均值，标准差(均方差MSE)，均方根误差，峰值信噪比（psnr），空间频率(sf)，图像清晰度，互信息(mi)，结构相似性(ssim)，交叉熵(cross entropy)，相对标准差。大家一起交流吧~-This is sorted out from the online image fusion evaluation criteria, there are a total of 13 performance indicators. Including the average gradient, edge strength, information entropy, gray are
Value, standard deviation (mean square error MSE), root mean square error, peak signal to noise ratio (psnr), spatial frequency (sf), image clarity, mutual information (mi), structure
Similarity (ssim), cross-entropy (cross entropy), the relative standard deviation. Exchange it with everyone ~ Platform: |
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Description: 图像融合中常用的评价指标（非常全面）如：平均梯度、相关系数、信息熵、交叉熵、联合熵、均方误差、互信息、信噪比、峰值信噪比、均方根误差、空间频率、标准差、均值、扭曲程度、偏差指数等等。-Image fusion evaluation (very comprehensive): average gradient, correlation coefficient, entropy, cross entropy, joint entropy, mean square error and mutual information, signal to noise ratio, peak signal to noise ratio, root mean square error, spacefrequency, standard deviation, mean, distorting the degree of deviation index. Platform: |
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Description: 基于vc实现的可用于计算图像的均值、方差和信源熵及平均梯度，支持BMP灰度图像。-Vc achieved can be used to calculate the image of the mean, variance and entropy of the source and the average gradient, supports BMP grayscale images. Platform: |
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Description: 图像图形处理中评价函数，包括平均梯度，方差，边缘密度和熵。-Evaluation of image and graphics processing functions, including average gradient variance, edge density and entropy. Platform: |
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Description: 此文档中的代码可以计算5种图像的质量参数，分别是：图像灰度均值、图像方差、图像平均梯度、熵和峰值信噪比及均方误差。-The code in this document can be calculated five kinds of image quality parameters, namely: the image gray value, image variance, average gradient image, entropy and peak signal to noise ratio and mean square error. Platform: |
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Author:玄林江 |
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Description: 计算图像平均梯度，可以用于图像质量评估。(The average gradient of the computed image can be used for image quality evaluation.) Platform: |
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Author:realking
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Search - AVERAGE GRADIENT