搜索资源列表
Wavelet
- 用vc编写的 可以实现一维小波变换和二维小波变换-Vc realize a peacekeeping two-dimensional wavelet transform
image-fusion
- 二维快速小波变换分解与重构;融合规则是区域能量加权;融合图像评价,包括清晰度、信息熵等-2-D fast wavelet decomposition and reconstruction Area Energy weighted fusion Image fusion uation, including definition, information entropy, etc
image-transformation
- 了解图像变换的实质和意义,熟悉傅立叶变换的性质,通过实验了解二维频谱的分布特点,掌握VC++编程实现数字图像的傅立叶变换及滤波处理的方法。-Understand the nature and meaning of the image transformation, the familiar Fourier transform nature through experiments to understand the characteristics of two-dimensional spectr
5
- 图像去噪技术二例,1、逆DCT变换;2、二维小波重构技术。-Image denoising technology 2 cases, 1, inverse DCT transform 2, 2 d wavelet reconstruction technique.
chipher
- :目前混沌系统与加密技术相结合是现如今最热门的一个课题,虽然有大量的加密算法面世,但是这些加密算法并不成熟,仍然需要进一步的研究。本文采用像素位置置乱变换和像素值替代变换相结合的加密思想,设计出一种基于混沌的数字图像加密算法。引入了整数域上的逆仿射变换,算法中采用二维 logistic 混沌映射相结合的方法,生成多组混沌序列,像素置乱变换与灰度值替换都由这些混沌序列所控制。多混沌序列产生的密钥空间大于单一的混沌序列所产生的密钥空间,因此本文研究的算法加密强度很高。-The current cha
denoise
- 给定一个二维信号,利用小波变换对信号进行去噪处理。-Given a two-dimensional signal, the program denoise using wavelet transform.
Output_profile_of_VCSEL
- 用菲涅尔衍射以及夫琅禾费衍射中的傅里叶变换,来模拟表面带有二维结构的VCSEL的出射光的传播。所依据的公式比较复杂,要想看懂建议参考:《傅里叶光学导论》 -古德曼(Goodman)-Simulation of wave propagation of a 2-D micro-structure in the surface of a VCSEL using Fourier Transformation in the Fresnel and Fraunhofer diffraction.
bianhuanalvbo
- 程序代码说明 P0301:数字图像矩阵数据的显示及其傅立叶变换 P0302:二维离散余弦变换的图像压缩 P0303:采用灰度变换的方法增强图像的对比度 P0304:直方图均匀化 P0305:模拟图像受高斯白噪声和椒盐噪声的影响 P0306:采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 P0307:采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308:图像的自适应魏纳滤波 P0309:运用5种不同的梯度增强法进
dct2d
- 2D-DCT, 二维离散余弦变换模型。能够通过Synplify DSP生成Verilog代码 -2D-DCT model. This simulink model can generate RTL code via Synplify DSP.
cgdemo_opencv-code
- 能够实现二维图形的基本变换,是计算机图形学中必须学会的内容,也会是必须要完成的作业-it makes the 2d graphic`basic transformation cometrue,it`s also a homework in computer graphic
test4
- 对二维图片进行灰度变换、傅里叶变换、原点移动变换,并显示各种变换所生成的图形-A two-dimensional image of gradation conversion, Fourier transform, origin movement transformation, and display various generated graphics transform
DCT
- 简单的离散余弦变换代码,可对二维图像进行变换。此外可以根据需要调整输入数据-Simple code, discrete cosine transform can transform the two-dimensional image.Also can according to need to adjust the input data
Garbor-function
- 有了Gabor核函数后就可以采用前文中提到的“离散二维叠加和卷积”或“快速傅立叶变换卷积”的方法求解Gabor变换,并对变换结果求均值和方差作为提取的特征。32个Gabor核函数对应32次变换可以提取64个特征(包括均值和方差)。由于整个变换过程代码比较复杂,这里仅提供测试代码供下载。该代码仅计算了一个101×101尺寸的Gabor函数变换,得到均值和方差。代码采用两种卷积计算方式,从结果中可以看出,快速傅立叶变换卷积的效率是离散二维叠加和卷积的近50倍。-to extract features
graphic-transforming
- 在图形扫描填充的基础上实现一些二维图形的变换-Achieve some change on the basis of two-dimensional graphics graphics scanning filled on
OpenGLEX5
- EX5 OpenGL二维观察,编码包括了OpenGL中二维图形的几何几何变换,坐标系变化等。-EX5 OpenGL
xiaobobianhuan
- 中国科学技术大学小波变换实验源代码,包括离散小波变换、二维小波变换、双尺度差分方程迭代求解以及图像压缩-University of Science and Technology of China experimental wavelet transform source code, including the discrete wavelet transform two-dimensional wavelet transform, two-scale difference equation it
QR_PRO
- 针对QRCode二维码实际情况,设计了基于Canny和Hough变换的二维码旋转校正算法,几何形变校正算法-QR Code for two-dimensional code to the actual situation, is designed based on the rotation correction two-dimensional code Canny algorithm and Hough transform geometric distortion correction algo
FFT-and-FFT-2D-ANSI-C
- 标准C语言实现的一维和二维快速傅里叶变换代码,代码运行时不需要额外占用多余的内存空间,简单易用,具体可见代码说明。-FFT and 2 dimension FFT algorithm acommplished with ANSI C.It occupies the least memory space while running after embeded into you project.The source code is easy and brief,you can check the t
jihebianhuan
- 本程序实现了多种复杂图形的在二维环境下的几何变换,可在console application下运行。-this programme is designed for changing the position or direction of geometries.
transform
- 快速傅里叶变换函数,对一维信号信息和二维图像信息进行快速傅里叶变换-Fast Fourier transform function, one-dimensional and two-dimensional image information signal information fast Fourier transform