搜索资源列表
2111frft
- 1 本程序通过Mallat算法实现小波变换 2 本程序能打开任意长宽比的bmp图像,正方形的raw图像-Through a process of wavelet transform Mallat Algorithm 2 the procedure to open the bmp images of arbitrary aspect ratio, the square of the raw image
watermark
- 置乱变换后图像的lsb嵌入,以及提取程序,另外还包含psnr程序,可以与本人上传的dct频域嵌入进行对比-Image scrambling transformation lsb embedding, as well as the extraction procedure, also includes psnr program, can I upload dct compare the frequency domain embedding
frft
- 这是离散分数傅里叶,传输2D的图像加密解密,还有密钥的加密解密-This is the discrete fractional Fourier, transmission 2D image encryption, as well as the encryption key to decrypt
ding
- 丁 建 均 (Jian-Jiun Ding) 台大電信所助理教授 ppt和word资料,主要研究领域为图像处理和FRFT。-Ding were (Jian-Jiun Ding) Assistant Professor, National Taiwan University Telecommunications ppt and word of the data, the main research areas of image processing and FRFT.
ISAR-image-formation-using
- A journal paper about ISAR+FrFT
frft
- 用于分数傅里叶变换,数字信号处理,图像处理。-For the fractional Fourier transform, digital signal processing, image processing.
matlab-realization-of-frft
- frft的matlab实现,可以用于数字信号处理或图像加密-these programmes are matlab realization of frft that can be used in digital signal processing or image encryption
fdkjfkdjfdkf
- 数字水印文件和数字水印命令是数字水印技术在军事应用的两个重要应用。本文以一种基于分数阶傅里叶变换 (FRFT)的数字水印算法,使用chirp信号作为水印信息,嵌入到图像的分数阶傅里叶的加密域中。该算法有效地利用水印的 嵌入位置和FRFT的阶次作为密钥的同时,还利用chirp信号在分数阶傅里叶域的特点,可以很方便的检测到水印,具有良好 的不可见性和安全性的同时,还能够抵抗很强的JPEG压缩和噪声的攻击,对剪切、滤波等操作也有一定的鲁棒性。-Watermarking files and
2015.3.20
- 基于FRFT的数字图像水印(lena示例)-FRFT based digital image watermark (lena example)
FRFT
- 收集汇总了网上的一维和二维FRFT ,提出一种2DFRFT和仿射置乱的图像加密方法-Collect aggregate online one-dimensional and two-dimensional FFT Proposed 2DFRFT and affine image scrambling encryption method
frft code
- 对二维图像去噪,使用分数阶傅里叶变换算法。(For two-dimensional image denoising, fractional Fourier transform algorithm is used.)