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Description: Marr_Hildret算子的详细讲解,能更好的提高边缘提取的效果 很难得的哟-Marr_Hildret Operator elaborate better marginal increase of the effect is difficult to extract the yo
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Size: 83968 |
Author: owen |
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Description: Sobel算子是图像处理中的算子之一，主要用作边缘检测。本程序使用Sobel算子检测图像边缘信息-Sobel operator is the image processing operator, one is mainly used for edge detection. This procedure using Sobel edge detection operator information
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Size: 88064 |
Author: shen hong |
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Description: 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' , ' sobel' , ' sobel_diagonal' , sobel operator, ' Prewit' , canny ' ,' LoG ' ).
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Size: 24576 |
Author: cui ju |
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Description: 最优的阶梯型边缘检测算法(canny边缘检测)
1.Canny边缘检测基本原理
(1)图象边缘检测必须满足两个条件：一能有效地抑制噪声；二必须尽量精确确定边缘的位置。
(2)根据对信噪比与定位乘积进行测度，得到最优化逼近算子。这就是Canny边缘检测算子。
(3)类似与Marr（LoG）边缘检测方法，也属于先平滑后求导数的方法。
2.Canny边缘检测算法：
step1:用高斯滤波器平滑图象；
step2:用一阶偏导的有限差分来计算梯度的幅值和方向；
step3:对梯度幅值进行非极大值抑制；
step4:用双阈值算法检测和连接边缘。
step1:高斯平滑函数
-The optimal type stair edge detection algorithm (canny edge detection)
1 Canny edge detection principle
(1) the image edge detection must meet two conditions: one can effectively reduce the noise, 2 must try to accurately determine edge position.
(2) according to the signal-to-noise ratio and the product localization estimate, get optimal approximation operator. This is the Canny edge detection operators.
(3) similar to Marr (LoG) edge detection method, also belongs to the first derivative method for smooth after.
2 Canny edge detection algorithm:
Step1: using gauss filter smooth image,
Step2: a partial derivatives with finite difference to calculate gradient value and direction,
Step3: a gradient of maximum inhibition,
Step4: double threshold algorithm of edge detection and connection.
Step1: gaussian smooth functions
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Size: 1271808 |
Author: lx |
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Description: 给定一个归一化的指纹图像，算法的主要步骤如下：
**
** 1 - 将G分成大小为 w x w - (15 x 15) 的块；
**
** 2 - 计算每个象素 (i,j)的梯度 dx(i,j) 和 dy(i,j) ,
** 根据计算的需求，梯度算子可以从简单的Sobel算子到复杂的Marr-Hildreth 算子。
**
** 3 - 估算优势方向(i,j)-Given a normalized fingerprint image, the algorithm' s main steps are as follows:**** 1- The size of G into wxw- (15 x 15) blocks **** 2- calculated for each pixel (i , j) of the gradient dx (i, j) and dy (i, j),** according to the needs of computing the gradient operator can be from simple to complex Sobel operator Marr-Hildreth operator.**** 3- estimated dominant directions (i, j)
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Size: 1629184 |
Author: zhangbao369 |
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Description: 边缘检测——各种算子
通过输入不同的参数，能够实现Sobel算子、Prewitt算子、Roberts算子、Marr算子和Canny边缘检测。-Edge Detection- Various Operators
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Size: 12288 |
Author: Evan |
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Description: CANNY AND MARR ALGORITHM FOR LINE DETECTION
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Size: 4096 |
Author: ali |
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Description: 用于对图像的边缘检测，可通过输入不同的参数采用sobel，prewitt，roberts，marr，canny等算子进行边缘检测。-Matlab code for edge detection,including sobel,prewitt,roberts,marr,canny s.
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Size: 2048 |
Author: xuxiaping |
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Description: 编制一个通用的边缘提取函数。通过输入不同的参数，能够实现Sobel算子、Prewitt算子、Roberts算子、Marr算子和Canny边缘检测。
实验图像任选 -Preparation of a common edge extraction function. By entering different parameters to achieve the Sobel operator, Prewitt operator, Roberts, operator, operator of Marr and Canny edge detection. Experimental image optional
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Size: 168960 |
Author: David Lucky |
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Description: 本程序实现了对灰度图像的边缘检测，可采用5中算子（sobel、prewitt、roberts、canny、marr）对图像检测-This program implements the edge detection of gray-scale image can be used 5 operator (sobel, prewitt, roberts, canny, marr) image detection
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Size: 185344 |
Author: Hunt |
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Description: 本程序二维Marr张量小波求小波基的运算，并有绘图命令相辅助实现-Marr dimensional tensor Wavelets based
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Size: 1024 |
Author: gaoxiangyang |
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Description: 基于宽带Marr子波的广义S变换程序，与常规S变换相比，时频聚焦性更高。-Generalized S transform broadband Marr wavelet-based program, compared with the conventional S-transform time-frequency focus more.
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Size: 14336 |
Author: 袁殿 |
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Description: 实现sobel canny prewitt marr Roberts算子的边缘检测-Achieve sobel canny prewitt marr Roberts edge detection operator
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Size: 3072 |
Author: 葛文耀 |
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Description: Master textbook chapter content, that spatial domain image processing methods
Grasp the Marr-Hildreth edge detection algorithm
Canny edge detection algorithm to master
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Size: 2048 |
Author: 梦娜 |
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Description: 经典边缘检测算子的实现集合，包括Roberts, Prewitt and Sobel，Haralick，Marr-Hildreth，Marr-Hildreth。-Classic edge detection operator to achieve the set, including Roberts, Prewitt and Sobel, Haralick, Marr-Hildreth, Marr-Hildreth.
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Size: 711680 |
Author: Alice |
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Description: 利用sobel，prewitt等算法实现边缘检测--By sobel, prewitt, robert, marr and realize canny edge detection operator
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Size: 88064 |
Author: HE |
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Description: Abstract— In the area of image processing, several methods of
edge detection have been proposed till now like Sobel, Robert,
Prewitt, Canny, Marr-Hildreth etc. All these methods are having
their own advantages and disadvantages. In this paper a new
method has been proposed for edge detection using Cellular
Automata. Different rules have been applied for edge detection.
The outputs are better in terms of clarity and computation time.
Finally, the edge detection has been applied for detecting
cancerous cells in brain. Using Cellular Automata rules helps in
determining the exact location and size of tumor as edges
detected using Cellular Automata are fine, continuous and clear.
The results
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Size: 959488 |
Author: manoj |
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Description: Implementation of Marr-Poggio-Grimson stereo pair matching. The demonstration for random dot stereopair is included.
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Size: 3072 |
Author: fuzzy133 |
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Description: Edge Dectection .. Sobel,Prewitt,Roberts,Marr,Canny,log and histograms photo and Boundarie Color Objects
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Size: 80896 |
Author: vs2oo |
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Description: 图像处理一直以来都是比较热的关注对象，本程序提供5种边缘检测——Sobel,Prewitt,Roberts,Marr,以及Canny算子。-Image processing has always been concerned about the relatively hot object, the program offers five kinds of edge detection Sobel, Prewitt, Roberts, Marr, and Canny operator.
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Size: 3072 |
Author: LU |
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