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用Canny算子检测图像的边缘 P0404:图像的阈值分割 P0405:用水线阈值法分割图像 P0406:对矩阵进行四叉树分解 P0407:将图像分为文字和非文字的两个类别 P0408:形态学梯度检测二值图像的边缘 P0409:形态学实例——从PCB图像中删除所有电流线,仅保留芯片对象-with Canny operator to detect the edges in the image P0404 : image thresholding segmentation P0405 : water
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在matlab环境下,利用迭代法求图像阈值,然后实现图像的二值化处理.,get the image threshold by iterative algorithm in matlab. And transform the gray image into binary image.
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Matlab多种图像边缘检测方法
1、用Prewitt算子检测图像的边缘
2、用不同σ值的LoG算子检测图像的边缘
3、用Canny算子检测图像的边缘
4、图像的阈值分割
5、用水线阈值法分割图像
6、对矩阵进行四叉树分解
7、将图像分为文字和非文字的两个类别
8、形态学梯度检测二值图像的边缘
9、形态学实例——从PCB图像中删除所有电流线,仅保留芯片对象-Matlab a variety of image edge detection method 1, u
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這是一個可以自動尋找图像中的長方形, 正方形, 圓形, 菱形的程式-1- Read the RGB (colored) image in from user.
2- Convert image from (RGB) colored to gray image.
3- Threshold the image (convert gray image to binary image).
4- Invert the binary image (in order to speed
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基于MATLAB的图像处理源程序集,包括阈值、二值化、灰度变化,边缘提取-MATLAB based image processing source code set, including threshold, binary, gray scale, edge extraction, etc.
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OTSU Gray-level image segmentation using Otsu s method.
Iseg = OTSU(I,n) computes a segmented image (Iseg) containing n classes
by means of Otsu s n-thresholding method (Otsu N, A Threshold Selection
Method from Gray-Level Histograms, IEEE
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Compute Classical CFAR binary detection threshold for radar detection under additive Gaussian white noise criterion and specified false alarm probability.
-Compute Classical CFAR binary detection threshold for radar detection under additive Gaussi
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图像的二值化处理就是讲图像上的点的灰度置为0或255,也就是讲整个图像呈现出明显的黑白效果。即将256个亮度等级的灰度图像通过适当的阀值选取而获得仍然可以反映图像整体和局部特征的二值化图像。-Binary image processing is to say the point of image gray-scale home for 0 or 255, that is, speaking of the images clearly show the effect of black and wh
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摘 要:针对茄子图像的灰度和颜色特点,利用MATLAB中丰富的图像处理函数,分别进行了色差分割和色调分割。在
色调分割中,采用了自动选取阈值的Otsu法。在去除残留噪音的处理中,采用标注的方法对二值图像的各连通区域进行面积
统计。保留最大面积的区域,从而使分割效果大大改善。利用多参数来衡量分割效果,使评价做到最大程度的客观、合理。-Based on the gray- level and color characteristics of eggp lant image, hue and
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本程序实现边缘检测,并可通过设置阀值t二值化输出图像,选择类型设置检测算子(Roberts , sobel , sobel_diagonal ,sobel算子, Prewit ,canny , LoG )。-Edge detection of the program, and by setting the threshold t of the output binary image, select the type of operator settings (Roberts' , '
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程序可以选择输出二值图像。二值图像可以通过对每个梯度点取阈值得到,其中阈值T为输入参数。并且要求结合3*3掩模的平滑运算和本实验上面的原算,并对图像进行处理,分割出图像中间的大血管区域,并将结果用二值图表示。在实验中需要对平滑运算方法和阈值T进行反复调整。-Program can choose the output binary image. Binary image can be taken for each gradient point to the threshold should be,
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程序代码说明
用Prewitt算子检测图像的边缘
用不同σ值的LoG算子检测图像的边缘
用Canny算子检测图像的边缘
图像的阈值分割
用水线阈值法分割图像
对矩阵进行四叉树分解
将图像分为文字和非文字的两个类别
形态学梯度检测二值图像的边缘
形态学实例——从PCB图像中删除所有电流线,仅保留芯片对象
-Program code shows the image using Prewitt edge de
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本程序应用了取两次阈值、基于特征的逻辑、二值形态学和相连成分的标识,确定了钢的显微图像中颗粒的边界,标识了不同的颗粒。-This procedure applies to take the two threshold values, based on characteristics of logic, binary morphology and connected component labeling, to determine the microstructure of steel grain
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编写基本的图像处理程序,包括功能:
图像的读取、存储、显示(bmp、jpg等常用格式)
图像剪切、缩放
图像色彩变换(彩色->灰度等)
基本直方图变换和直方图均衡化
图像平滑与锐化
边缘抽取
阈值化
离散傅立叶变换
二值形态学处理(腐蚀、膨胀、开运算、闭运算)
-Preparation of basic image processing procedures, including functions: image reading,
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This tool launches a GUI for thresholding an intensity input image. A line on the histogram indicates the current threshold level. A binary image is displayed in the top right based on the level, click and drag the line. The output image updates auto
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otsu threshold, run on image to get value, then do binary thresholding
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摘要:用MATLAB对基带数据传输解调检测进行仿真,推导不同先验概率下,接收端最小错误的判决门限。仿真不同先验概率下的误码性能,二进制与多进制的误码性能比较,码间串扰对误码性能的影响,及频偏对串行通信误码率的影响。
关键词:MATLAB,基带传输,检测,判决门限
-Abstract: Using MATLAB for baseband demodulation simulation data derived under different prior probability, the r
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大津法,将灰度图像转化为二值图像,选取的阀值是生成图像的方差最大-Otsu method, the grayscale image into a binary image, the selected threshold is the maximum variance of the image generated
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迭代法求阈值的二值图像的matlab程序。-Iterative method for the threshold binary image of the matlab program.
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肺部CT图片分割提取出肺实质:迭代法获取灰度阈值;二值化图像;分区使用纯M语言编写,各个环节都是自己编程解决,没有用Matlab内置的函数,方便改成其他语言代码。-Lung CT image segmentation to extract the lung parenchyma: iterative methods for grayscale threshold binary image partition using pure M language, are all aspects
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