搜索资源列表
FT
- 基于傅里叶变换的去除图像纹理方法。通过去除频域高亮区域来消除纹理,保留低频信息。-Based on Fourier Transform method to remove the image texture. Highlighted region by removing the frequency domain to eliminate the texture, retain low frequency information.
two_dimensional_PSD
- 二维功率谱密度计算程序 使用傅里叶变换 -2D PSD caculation estimator
first
- 二维傅里叶变换,对图像进行二维傅里叶变换处理-Two-Dimensional Fast Fourier Transform The purpose of this project is to develop a 2-D FFT program "package" that will be used in several other projects that follow. Your implementation must have the capabilitie
efficient_registration
- 利用傅里叶变换,在频域上对两幅图像配准,是一种比较配准的新方法,但是对弹性配准的效果不是很好 需要进一步的研究。-Registers two images (2-D rigid translation) within a fraction of a pixel specified by the user. Instead of computing a zero-padded FFT (fast Fourier transform), this code uses selective upsamp
fa
- 离散的分数阶傅里叶变换MATLAB程度代码,可用于数字水印研究及图像处理、-Discrete fractional Fourier transform of the degree of MATLAB code can be used for digital watermarking and image processing,
frequency
- 用傅里叶变换对图形进行变换,然后用高斯低通、高通滤波器对图像进行去噪-Fourier transform graphics transform, and then use Gaussian low-pass, high pass filter for image denoising
restore
- 图像增强的目标是改进图片的质量,例如增加对比度,去掉模糊和噪声,修正几何畸变等;图像复原是在假定已知模糊或噪声的模型时,试图估计原图像的一种技术。 图像增强按所用方法可分成频率域法和空间域法。前者把图像看成一种二维信号,对其进行基于二维傅里叶变换的信号增强。采用低通滤波(即只让低频信号通过)法,可去掉图中的噪声;采用高通滤波法,则可增强边缘等高频信号,使模糊的图片变得清晰。具有代表性的空间域算法有局部求平均值法和中值滤波(取局部邻域中的中间像素值)法等,它们可用于去除或减弱噪声。 -A
filt
- 关于图像滤波的一个实例应用,教会你如何通过傅里叶变换滤除单频噪声-An example of image filtering applications, teach you how to filter out single-frequency noise in Fourier transform
fft2
- 图像的二维傅里叶变换,matlab编程,很好用。-Two-dimensional Fourier transform image, matlab programming
FFT
- 主要实现傅里叶变换的Matlab程序,程序带有输出波形图像(The main realization of the Fourier transform Matlab procedures)
MATLAB图像配准程序
- 使用分离傅里叶变换的方法进行亚像素的图像配准(Subpixel image registration is performed using the method of separated Fourier transform)
exp2
- MATLAB图像处理中傅里叶变换,离散余弦变换,小波变换的简单应用(simple applications of Fourier transform, discrete cosine transform, wavelet transform in MATLAB image processing,)
STFFTtool3
- 对非平稳信号进行分段、截取,再对处理过后的短时信号做短时傅里叶变换,分析其频谱特性,并找到各个时间节点的频率特性,以便分析不同事件段内的声音特征,一图像的形式表达出,最终达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysi
keypoint
- 对非平稳信号进行分段、截取,再对处理过后的短时信号做短时傅里叶变换,分析其频谱特性,并找到各个时间节点的频率特性,以便分析不同事件段内的声音特征,以图像的形式表达出,最终达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysi
FFT
- 利用matlab进行傅里叶变换及反变换,实现空域到频域,频域到空域的图像处理(Using Fourier transform and inverse transform, to achieve the airspace to the frequency domain, frequency domain to the airspace image processing)
程序与图像
- 利用matlab对函数进行傅里叶变换得到相差等(Fourier transform function using MATLAB, such as phase difference)
图像处理
- 图像处理的基本操作,主要以傅里叶变换为例,展示代码细节(The basic operation of image processing, mainly Fourier transform, for example, display code details)
MATLAB
- 通过级联分数傅里叶变对图像进行加密解密,可自行设置秘钥,以及加密的阶数,具有良好的保密性(Encryption and decryption of image by fractional Fourier transform)
图像正交变换
- 在MATLAB环境中,进行图像的离散傅里叶变换和离散余弦变换 在MATLAB环境中,进行图像的离散小波变换,观察子带对重建图像的影响,理解小波变换的多分辨率特性(In the MATLAB environment, the image of the discrete wavelet transform, observe the sub-band on the reconstruction of the image, understand the multi-resolution characte
Character E in the MATLAB
- 使用matlab二元傅里叶变换全息图,字符“E”的MATLAB模拟计算全息图,字符“E”的MATLAB模拟计算全息图的再现图像(Character "E" in the MATLAB simulation of the reproduced image of the hologram)