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利用对比度拉伸方法增强图像,函数mean2直接在函数调用内计算平均值-Contrast stretching method to enhance the image, function mean2 directly in the function call to calculate the average
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计算四个方向上的灰度共生矩阵以及角二阶矩,熵,对比度,均匀性-Calculate four directions on the GLCM, as well as angular second moment, entropy, contrast, uniformity
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包含了如何计算连续梁桥的redundancy index, reliability index和失效概率的公式,以及如何画维修前和维修后的对比图像-Includes how to calculate the continuous girder bridge redundancy index, reliability index and failure probability of the formula, and how to draw the maintenance and repair of
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对子图像进行局部直方图计算,由最大方差比例阈
值确定方法计算出子图像的最佳阈值。根据局部直方图中波峰数决定是否增强子图像中被最佳
阈值划分出的低灰度区域和高灰度区的对比度。然后对已经选择性对比增强的图像进行边缘检
测。实验证明图像的区域层次更清楚,提取的边缘细节也更丰富。自适应算法则最大限度地突
出了边缘而同时保持了图像中相近灰度级的平滑性和连续性。-Image pairs local histogram calculation by the maximum variance r
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通过对图像进行分块处理,再采用模板式逐点扫描,实施一种方向空域滤波,计算指纹的方向对比度-Calculate the contrast of finger image
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对黑白图像进行滤波处理,然后目标提取,并计算目标形态属性-Black and white image filtering, and object extraction, and calculate the properties of the target form
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图像处理中计算图像对比度matlab程序-Image processing matlab program to calculate the image contrast
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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 Descr iption: The role of the program is to cal
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这个程序是用来计算图像的主观质量的,当然要有对比的图像才可以。-This program is used to calculate the subjective quality of the image, of course, have the contrast of the image before.
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计算三相对称的代码。这可以被用来作为一个行和BLOB探测器。相位对称是照明和图像的对比度,对称不变测度。-Calculate the three-phase symmetrical code. This can be used as a line and BLOB detector. Phase symmetrical lighting and contrast of the image, the symmetric invariant measure.
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八方向均值比例算子,对每个像素点取半径为r的矩阵,分成八个区域,计算均值比例,选取图像中的对比较为明显的区域-Mean proportion of the eight directions operator, a radius r of the matrix for each pixel is divided into eight regions, and calculate the mean ratio, the selected image of the more obvious contr
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matlab程序代码 用于计算并显示 图像的积分图,并在同一窗口并列显示对比-Matlab code used to calculate and display the integral image of the image side by side in the same window display contrast
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基于灰度共生矩阵计算熵值、相关性、能量、对比度-Calculate four directions on the GLCM, as well as angular second moment, entropy, contrast, uniformity
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能够创建4个方向的灰度共生矩阵,并且计算能量、熵、对比度和相关性四种特征-Creating four directions can be achieved GLCM , and calculate the energy , entropy, contrast, and correlation characteristics of four kinds of mean
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用于计算处理后的图像与源图像间的对比psnr值,图像质量评价用的-The processed image is used to calculate and the contrast between the source image PSNR, image quality assessment
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使用MATLAB,实现以下四个功能
一、获取图片RGB值:给定一张图片,获取点(x,y),以及(x,y)周围8个点的R、G、B值。
二、实现rgb2gray函数:使用matlab实现rgb2gray的功能,并能计算出转换后灰度图片的方差。
三、灰度图对比度增强:分别使用灰度拉伸和直方图均衡化,增强给定图的对比度。
四、图像去噪:对给定图片加椒盐噪声,并选择两个去噪算法去除椒盐噪声。
-Using MATLAB, to achieve the following four fu
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