搜索资源列表
ArisImageRoutines_compiled
- 使用vc进行离散余弦变换，在傅立叶变换的基础上-DCT by VC,it is based on FFT.
图像离散余弦变换
- 此程序可实现广为应用的离散余弦变换（DCT).-the program can actualize image discrete cosine transform which is widely used.
DCTtransform
- 离散余弦变换也是一种把图像从时域变换到拼域的方法-Discrete Cosine Transform is a kind of images from the time domain to transform the domain fight
FFT_DCT
- 快速傅立叶变换和离散余弦变换的简单实现，有一些小问题，就不修复了，呵呵。-fast Fourier transform and discrete cosine transform a simple, and it is only a small problem, not repaired, huh.
Sin(sin)
- 输出正弦波，其频率和振幅可调,通过该例子读者也可以编写余弦函数的输出波形-sine wave output, adjustable frequency and amplitude, through which readers can also examples of the preparation of the cosine wave output
simplejpeg
- 一个简单的jpeg的编码器 它采用的离散余弦变换是ANN&SCALE DCT -a simple jpeg the encoder uses the discrete cosine transform DCT is ANNSCALE
cos
- 离散余弦变换，用于图像压缩方面 JPEG 压缩标准里面就有他-Discrete Cosine Transform for image compression standard JPEG compression inside he would have
digitalimagedealing
- 用VC做的图象处理程序，包括对比度拉伸，傅立叶变换，离散余弦变换，维纳滤波等等。-VC do image processing procedures, including tensile contrast, Fourier transform, discrete cosine transform, and so on Wiener filter.
Image-matritype-conversion
- 读取图像 显示图像 将图像矩阵类型转换为double 傅里叶变换 离散余弦变换-Read image shows the image matrix type image is converted to double Fourier transform discrete cosine transform
ConsoleApplication1
- 利用Math。Acos实现余弦函数的编写，原理是基于C的。-Using Math. Acos achieve the preparation of cosine function, the principle is based on the C' s.
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,)
E2-频域增强
- 一、 计算图象的频谱函数 设计图象120*30/256*256；选用Matlab函数直接调用实现。 二、根据计算证明傅立叶变换的性质 1， 共轭对称性: F(u,v)=F*(-u,-v) ; 三、图象的频域滤波 1， 设计一个指数低通滤波器，对两图象（f1(x,y)为30*30/256*256的图象；f2(x,y)=p3-02图象）进行低通滤波，观察分析空域图象和频谱分布的变化。 四、图象变换比较 利用现有的离散傅立叶变换、离散余弦变换、Walsh-Had
2余弦变换
- 2余弦变换-《MATLAB数字图像处理：从仿真到CC++代码的自动生成》(2 cosine transform - MATLAB digital image processing: automatic generation from simulation to cc-+ code)
test1
- 对Lena图像进行傅立叶、离散余弦、哈达玛变换。在频域，对比他们的变换后系数矩阵的频谱情况，进一步，通过逆变换观察不同变换下的图像重建质量情况。(Fourier transform, discrete cosine transform and Hadamard transform are applied to Lena image. In the frequency domain, the spectrum of their transformed coefficient matrix is c
add_noise_pinyutu
- 进行纯净信号和加噪信号的时频域显示，及其包络图显示，并计算加噪信号的信噪比、互相关系数、峭度值，对信号进行离散余弦变换。(The time-frequency domain display of pure signal and noise-added signal and its envelope diagram display are carried out, and the signal-to-noise ratio, correlation coefficient and kurtosis
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
图像离散余弦去噪
- matlab实现图像离散余弦变化，并对含有不同方差的高斯噪声图像进行去噪处理，利用PSNR和PMES对四种结果图进行对比，得出该去噪效果。
DCT,DWT,DFT,LSB数字水印MATLAB+GUI界面
- 本课题为基于MATLAB的小波变换dwt和离散余弦dct的多方法对比数字水印系统。带GUI交互界面。有一个主界面GUI，可以调用dwt方法的子界面和dct方法的子界面。流程包括，读取宿主图像和水印图像，嵌入，多种方法的攻击（剪切，加噪，旋转等），提取，最后利用psnr峰值信噪比进行评价不同攻击下，鲁棒性的好坏。(This project is based on MATLAB wavelet transform DWT and discrete cosine DCT multi method co
fft_dct_dwht
- 用matlab实现了傅里叶变换，离散余弦变换和沃什哈达玛变化。需要下载工具性app designer(Fourier transform, discrete cosine transform and Walsh Hadamard change are realized by MATLAB. Need to download tool app Designer)
余弦相似度和ssim值
- 计算图片余弦相似度和ssim的值，该程序使用python语言写的(Calculate the cosine similarity and SSIM value, the program is written in Python language)