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[Special Effects] 1D gabor Filter DL : 0: Description: Recent studies on Mathematical modeling of visual cortical cells [Kulikowski/Marcelja/Bishop:1982] suggest a tuned band pass filter bank structure. These filters are found to have Gaussian transfer functions in the frequency domain. Thus, taking the Inverse Fourier Transform of this transfer function we get a filter characteristics closely resembling to the Gabor filters. The Gabor filter is basically a Gaussian (with variances sx and sy along x and y-axes respectively) modulated by a complex sinusoid (with centre frequencies U and V along x and y-axes respectively).
Date : 2008-10-13 Size : 2.33kb User : gz
[Special Effects] 1D gabor Filter DL : 0: Description: Recent studies on Mathematical modeling of visual cortical cells [Kulikowski/Marcelja/Bishop:1982] suggest a tuned band pass filter bank structure. These filters are found to have Gaussian transfer functions in the frequency domain. Thus, taking the Inverse Fourier Transform of this transfer function we get a filter characteristics closely resembling to the Gabor filters. The Gabor filter is basically a Gaussian (with variances sx and sy along x and y-axes respectively) modulated by a complex sinusoid (with centre frequencies U and V along x and y-axes respectively).
Date : 2025-12-13 Size : 2kb User : gz
[Special Effects] filter DL : 0: 图像变换域处理--频域滤波的源代码，内有调试图片-Image transform domain frequency domain filtering of the source code with a debugger picture
Date : 2025-12-13 Size : 284kb User : happylander
[Special Effects] DigitalImageProcessingReport DL : 0: 数字图像处理实验报告，包括灰度图像处理，各类噪声的处理，频率域等滤波器（巴特沃斯、高斯、理想滤波器）以及边缘处理、图像锐化等，含有全部MATLAB代码及实验步骤与结果分析等。-Digital image processing experiments, including gray-scale image processing, handle all kinds of noise, such as frequency domain filter (Butterworth, Gaussian, ideal filter), as well as the edge processing, image sharpening and so on, contains all the MATLAB code and experimental steps and results analysis.
Date : 2025-12-13 Size : 2.1mb User : Diana
[Special Effects] 4 DL : 0: 频率域去噪程序，理想低通和巴特沃斯低通滤波器-Frequency domain de-noising procedure, an ideal low-pass and Butterworth low-pass filter
Date : 2025-12-13 Size : 346kb User : plx
[Special Effects] GaborFilter DL : 0: 本程序实现了Gabor滤波器的三维显示并对一幅图像通过频域卷积实现了1个尺度6个方向的Gabor滤波显示-This procedure achieved a Gabor filter and a three-dimensional display image through frequency-domain convolution achieved a scale 6 shows the direction of the Gabor filtering
Date : 2025-12-13 Size : 1kb User : 朱宇
[Special Effects] dft_hp_filt DL : 0: 用于频域滤波的m函数，接受输入一幅图像和一个滤波函数，输出经滤波和剪切后的图像。还有一个高通滤波函数。-For frequency domain filtering m function, to accept the importation of an image and a filter function, the output cut by the filtering and image. There is also a high-pass filtering function.
Date : 2025-12-13 Size : 1kb User : 乔连芝
[Special Effects] filter DL : 0: 频域低通滤波（理想低通滤波器、梯形低通滤波器、巴特沃斯低通滤波器、指数低通滤波器），频域高通滤波（理想高通滤波器、梯形高通滤波器、巴特沃斯高通滤波器、指数高通滤波器）-Frequency-domain low-pass filter (ideal low-pass filter, ladder low-pass filter, Butterworth low-pass filter, the index low-pass filter), frequency-domain high-pass filtering (ideal high-pass filter, trapezoidal high-pass filter , Butterworth high-pass filter, the index of high-pass filter)
Date : 2025-12-13 Size : 2.9mb User : zhaojie
[Special Effects] FrequencyFilt DL : 0: 各种频域的滤波函数，包括低通，高通，带通，同态滤波。-Various frequency domain filter function, including low-pass, high pass, band-pass, homomorphic filtering.
Date : 2025-12-13 Size : 14kb User : 李岚
[Special Effects] image_bandpass_filter DL : 0: Design frequency domain Ideal, Butterworth and Gaussian band pass filters to filter the input image. Use your own grayscale picture as the input image. The filters must be passing frequencies between radius of 30 and 120 frequency components of the Fourier spectrum (30<D0<120). - input image - Fourier spectrum of the image - Frequency domain filter function image - Band pass filtered image- Design frequency domain Ideal, Butterworth and Gaussian band pass filters to filter the input image. Use your own grayscale picture as the input image. The filters must be passing frequencies between radius of 30 and 120 frequency components of the Fourier spectrum (30<D0<120). - input image - Fourier spectrum of the image - Frequency domain filter function image - Band pass filtered image
Date : 2025-12-13 Size : 1kb User : mustafa
[Special Effects] linearfilter DL : 0: 空域数字图像线性滤波器和频域非递归滤波器（包括：频域变换法、频域抽样法和窗函数法）的Matlab实现。-Airspace linear digital image filters and frequency-domain non-recursive filter (including: frequency-domain transformation method, frequency-domain sampling method and window function method) of the Matlab implementation.
Date : 2025-12-13 Size : 232kb User : Anna
[Special Effects] frequencyzonefilter DL : 0: vc6.0下开发的频域滤波器实验平台，包括傅立叶变换、常用低通、高通滤波器，效果已测试-vc6.0 developed under the experimental platform frequency-domain filter, including the Fourier transform, commonly used low-pass, high pass filter, the effect has been tested
Date : 2025-12-13 Size : 1.33mb User : 赵永诚
[Special Effects] filter DL : 0: 用MATLAB实现频域平滑滤波以及图像去噪代码6. 计算频率域图像的幅值并进行对数变换，利用’imshow’ 显示频率域图像； 7. 在频率图像上去除滤波半径以外的数据(置0)； 8. 计算频率域图像的幅值并进行对数变换，利用’imshow’ 显示处理过的频域图像数据； -6. Calculate the frequency domain image of the amplitude and logarithmic transformation, using imshow show the frequency domain map Like 7. Removal of the image filtering in frequency than the radius of data (set 0) 8. Calculate the frequency domain image of the amplitude and logarithmic transformation, using imshow show-treated Frequency domain image data
Date : 2025-12-13 Size : 4kb User : 梁玉梅
[Special Effects] belixiangditong_pinghua DL : 0: 数字图像处理，频域滤波：理想低通滤波器、梯形滤波器、巴斯沃特滤波器-Digital image processing, frequency domain filtering: an ideal low-pass filter, ladder filters, Bath Water Filter
Date : 2025-12-13 Size : 1kb User : yangyucheng
[Special Effects] filter DL : 0: 在频率域实现了高通图像滤波。有两种滤波器可以选择，一是巴特沃斯型，另一个是高斯型。-In the frequency domain to achieve a high-pass image filtering. There are two filters to choose from, first, Butterworth-type, the other is Gaussian
Date : 2025-12-13 Size : 1.35mb User : 刘鹏威
[Special Effects] distexture1 DL : 0: 主要用于织物图像处理中，织物起球图像的频域纹理滤除，将图像从空间域变换到频率域。-Mainly used in fabric image processing, the fabric pilling texture image in the frequency domain filter, transform the image from space domain to the frequency domain.
Date : 2025-12-13 Size : 1kb User : 杨宁
[Special Effects] frequency-domain-processing DL : 0: 傅立叶变换是数字图像处理中应用最广的一种变换，其中图像增强、图像复原和图像分析与描述等，每一类处理方法都要用到图像变换，尤其是图像的傅立叶变换。常用的图像增强技术可分为基于空域和基于变换域的两类方法。最常用的变换域是频域空间。在频域空间，图像的信息表现为不同频率分量的组合。如果能让某个范围内的分量或某些频率的分量受到抑制而让其他分量不受影响，就可以改变输出图像的频率分布，达到不同的增强目的。 4、高通滤波- 锐化 -Fourier transform in digital image processing is a transformation, which is the most widely used, including image enhancement, image restoration and image analysis and description. Each method is used for image processing, especially the image transform. This paper describes the digital image transform and gives the MATLAB program. Then, using FFT, realizes the image smoothing by using the low-pass filter and images sharpening by using the high-pass filter.
Date : 2025-12-13 Size : 23kb User : 李慕白
[Special Effects] Sharpening-filter DL : 0: MATLAB 利用频域滤波器进行锐化滤波的代码-MATLAB using the frequency domain filter for sharpening filter code
Date : 2025-12-13 Size : 214kb User : 孙磊
[Special Effects] Frequency-domain-filtering DL : 0: 本文主要研究了频域滤波中平滑以及锐化技术，借助Butterworth滤波器以及Gauss滤波器探究了低通滤波器的性质；结合USM技术，Laplacian算子、以及Butterworth/Gauss滤波器研究了高通滤波器的特性. doc文档最后附有所有我编写的的matlab代码-This paper studies the frequency domain filtering smoothing and sharpening techniques, using Gauss filter Butterworth filter and explores the nature of the low-pass filter combined USM technology, Laplacian operator, and Butterworth/Gauss filter to study the high-pass filter characteristics. doc document with all my final written matlab code
Date : 2025-12-13 Size : 1.55mb User : du han
[Special Effects] Frequency-domain-filter DL : 0: 数字图像处理的频率域滤波器。平滑图像和锐化图像。开发环境：vs2010+opencv。-Frequency domain filter digital image processing. Image smoothing and sharpening images. Development environment: vs2010+ opencv.
Date : 2025-12-13 Size : 2kb User : 冯泽

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