搜索资源列表
hdjm
- 抽取子图像: 通过一个随机混沌标签序列从原图像中抽取 对子图像加密:小波变换 ,在高频部分加密 重构原图，把加密好的子图像重新放回到原图像中 -from sub-images : a random chaotic sequence label from the original image from a tradition image encryption : wavelet transform, the high-frequency part of remodeling the
dctmatlab
- 提取图像的边缘信息 采用小波离散变换进行水印的嵌入
DWT
- 利用同一密钥的混沌序列对经过置乱的水印信息实现双重加密，考虑小波变换的能量分布问题，把水印信息嵌入低频系数中，确保水印信息的可靠性。提取时利用图像复原方法实现盲检测。
DWThundunjiami
- 文中提出了一种基于离散小波变换和混沌加密的数字水印新算法,采用二维混沌变换对水印图像加密 对载体图像进行多分辨离散小波变换,应用小波系数判断载体图像的纹理复杂程度后,依据人眼的视觉系统(HVS)特性,将水印信号嵌入到图像的低频部分,对图像的不 同分解层分别选取不同的纹理阈值和水印嵌入强度,将数字水印嵌入到相同分辨层的原始图像中,提高了水印算法的鲁棒性。在检测和提取水印时,通过水印相似度(NC)和峰值信噪比( PNSR)评价水印质量,实验结果表明提出的算法可以抵抗剪裁、JPEG压缩、滤波等几何
elecfans.com
- 基于小波变换的图像分割，很好的东西，功能强大-Image segmentation based on wavelet transform, a very good thing, a powerful
1-encryprion-JPEG2000-Image-by-Arnold
- 针对JPEG2000格式的图像，利用了Arnold变换对图像的小波系数进行加密，对初步研究JPEG2000图像加密算法的有试用价值-JPEG2000 image format for the use of the Arnold transform the image of the wavelet coefficients encryption, preliminary study of the JPEG2000 image encryption algorithms have tested th
SPIHT
- linux 下，压缩图像用的小波变换程序。 使用matlab程序书写，使用方便。-under linux, compressed images using wavelet transform procedures. Matlab procedures used to write and easy to use.
watermarking
- 对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印-Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). a
program
- 应用于图像加密，先对图像进行小波变换，进行像素置乱-Applied to image encryption, the first image wavelet transform, pixel scrambling
adapt-chaos-and-wavelet-combined-
- 该程序可以进行图像加密，运用了混沌和小波变换，希望对你有帮助。-adapt chaos and wavelet combined method of matlab image encryption
jp2_mat
- 图像的5/3小波变换的matlab代码。程序简短，易懂。-Image 5/3 wavelet transform matlab code. Program brief and easy to understand.
waterprint_rgb
- 此算法为一例实际利用小波变换进行数字水印的制作，在图像的R、G、B三维上进行操作。-This algorithm is an example of the practical use of digital watermarking wavelet transform production, operating in the image of R, G, B on the three-dimensional.
caisetuxiangjiamichengxv
- 采用了迭代混沌，Arnold算法，傅里叶变换加密，小波变换加密对彩色图像的加解密过程-Using iterative chaotic, Arnold algorithm to encrypt the Fourier transform, the wavelet transform color image encryption and decryption process
encryption
- 一种图像加密算法和一种基于小波变换的音频加密算法-An image encryption algorithm and an audio encryption algorithm based on wavelet transform
geatures
- 对图像进行小波变换,功能：高通滤波,低通滤波,图像复原,增强,融合！-Wavelet transform for image features: high pass filtering, low-pass filtering, image restoration, enhancement, fusion!
zhmyhe
- 实现图像小波变换,同一个窗口内分别实现原图和变换后的图像(Realize image wavelet transform, within the same window, the original image is implemented and after the transformation of the image)
lhejwv
- 学习二进小波变换用于图像增强,很好的例子,可以实现非线性增强,(Learning binary wavelet transform for image enhancement, good example, can realize the nonlinear enhancement,)