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高斯平滑滤波,绝对可用!希望给大家带来方便·本人也是个初学者,很希望能够得到大家的帮助。-Gaussian filtering, absolutely available! We hope to bring convenience I was a beginner, I hope we can get help.
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高斯函数能构成一个在频域具有平滑性能的低通滤波器。可以通过在频域做乘积来实现高斯滤波。-Constitute a Gaussian function to the frequency domain with a smooth performance of the low-pass filter. Can be done in the frequency domain Gaussian filter to achieve the product.
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以C sharp處理圖像平滑與去噪編程有關均值濾波中值濾波小波變換高斯濾波-In C sharp smoothing and denoising image processing program related to the mean filter median filter wavelet transform Gaussian filtering
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利用中值滤波和高斯滤波实现图像的平滑,锐化。-Using median filter and Gaussian filter to achieve a smooth image, sharpening.
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DSP算法
SMOOTH: CONVOLVES A MATRIX WITH A 3X3 GAUSSIAN FILTER KERNEL-DSP algorithm SMOOTH: CONVOLVES A MATRIX WITH A 3X3 GAUSSIAN FILTER KERNEL
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Gaussian Filter 高斯平滑滤波器,自己用C++写的滤波器类,用于其他处理操作前平滑噪声用。设定Sigma值,可以调整平滑效果。
下载包包含完整的Visual Studio 2005测试项目。 <plumcore>-Gaussian smooth filter
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数字图像的边缘检测
本科毕业设计(边缘检测是数字图像处理中的重要内容。本文首先对图像的边缘检测的各种算法和算子做了总结和分析。Canny最早提出了边缘检测的三条连续准则:最优检测结果、最优定位和低重复响应,并在这些准则的基础上得到了“最优线性滤波器”―高斯函数的一阶导数。经过十几年的发展,目前已经有了对这个准则的很多改进,本文也对这个方面的工作做了小结。Demigny在理论分析和实践的基础上给出了边缘检测的离散准则,并且证明在离散准则中Canny提出的第三个准则可以被阀值操作所取代。本文利用
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图像平滑与去噪,包括均值滤波,中值滤波,灰度形态学滤波,高斯低通滤波,统计滤波等-Image smoothing and denoising, including the mean filter, median filter, grayscale morphological filtering, Gaussian low-pass filtering, statistical filtering
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canny检测器是很有效的边缘检测器,该函数可以实现对目标图像的边缘提取。该方法总结如下:1.图像使用带有指定标准差的高斯滤波器来平滑,以此减少噪声;2.在每一点计算局部梯度和边缘方向;3.第二步中确定的边缘点会导致梯度幅度图像中出现脊,然后追踪所有脊的顶部,并将所有不再脊顶部的像素设置为0;4.执行边缘链接-canny detector is very effective edge detector, this function can be achieved on the target im
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the package contains some methods of diffusion filters to smooth the noisy images without losing important data such as edges in image analysis,including anisotropic diffusion(Perona-Malik), linear isotropic,median and Low Pass Gaussian filter.
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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;
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Canny 算子 是一个具有滤波、增强和检测的多阶段的优化算子。在进行处理前,Canny
算子先利用高斯平滑滤波器来平滑图像以除去噪声( 即用高斯平滑滤波器与图像作卷积) 。-Canny operator is a filtering, enhancement and optimization of multi-stage detection operator. Before treatment, Canny operator first use Gaussian smoothing fi
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采用Canny算法进行边缘检测。1用高斯滤波器平滑图像。2用一阶偏导的有限差分3对梯度幅度进行非极大值抑制。4用双阈值。5采用高斯平滑函数-Canny edge detection algorithm used. A smooth image with a Gaussian filter. 2 with the first-order partial derivatives of the finite difference gradient magnitude 3 on the non-maxi
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canny边缘检测算子,用高斯滤波平滑图像,再用一阶偏导的有限差分来计算梯度的幅值和方向。-canny edge detection operator, smooth image with a Gaussian filter, and then the first order partial derivatives of the finite difference to calculate the gradient magnitude and direction.
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Image filter. To Read the raw data and to smooth the image via gaussian filter.
The mask size is determined by user to control the smoothing level.-To Read the raw data and to smooth the image via gaussian filter.
The mask size is determined by u
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Smooth function is used a matrix with a 3X3 Gaussian filter kernel.
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高斯滤波程序,可以用来对数据曲线进行平滑,效果不错。-Gaussian filtering program can be used to smooth the data curves, the effect is good.
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this a source code developped with OpenCV and c++, it takes a colored picture in input, turns it channels from 3 to 1 (conversion to grey scalled picture) and applies diffrent filters (gaussian, laplacien,smooth filter...) and shows each result in a
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装载一张图像,使用4种不同滤波器 (见原理部分) 并显示平滑图像
-Load an image, use four different filters (average filter, median filter, gaussian filter, bilateral filter), and display the smooth image
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高斯频域滤波,各向异性滤波,低通滤波,作为图像平滑处理(gaussian filter in frequency field)
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