搜索资源列表
DCTDWT
- 关于图像除了 的 水印算法 dct 很详细 很难下载的 一篇详细论文-In addition to the watermarking algorithm on the image detail dct difficult to download a detailed paper
imagecompression
- 这是一个关于dct变换的图像压缩算法的例子,希望对大家有用-a program about dct image compression
DCT_mid_band
- 在数字图像DCT中频系数上嵌入水印的算法,基于相关性提取的水印-Comparison-Based Correlation in DCT mid-band
DCT
- 对图像信号进行DCT压缩和编码及加噪滤波后的恢复-DCT on the image signal compression and coding and increase the recovery of the filtered noise
DCT_SVD
- 本文提出一种在原始视频DCT(离散余弦变换)与SVD(奇异值分解)域自适应嵌入水印的算法。算法首先将视频流分割成一个个场景,场景中的视频图像被变换到DCT-SVD域中,水印量化嵌入在最大奇异上,实现了水印盲检测。同时实验证明该算法在满足透明性要求下也满足一定的鲁棒性要求,能够抵抗低通滤波、中值滤波、椒盐噪声、高斯噪声、H.264压缩攻击以及统计攻击和帧剪切等攻击。-This paper presents an original video in the DCT (Discrete Cosine
yansuoDCT
- 适用于图像压缩的二维8×+8+DCT查表快速算法研究,纪绣花,张彩明-Applicable to two-dimensional image compression 8 ×+8+ DCT fast algorithm for look-up table, Ji embroidery, Cai-Ming Zhang
li3-16
- 图像锐化实例,分别保存用DCT和小波方法的变换系数-Image sharpening examples, save the use of DCT and Wavelet transform coefficients
SVM_GA
- 提出一种基于支持向量机( SVM)和遗传算法(GA)的离散余弦变换(DCT)域盲数字图像水印方法. 该方法能自适应于图像的局部特征. 依据图像块的局部特性,利用SVM对图像块分类,自适应地确定水印嵌入强度, GA用来优化水印嵌入位置. 实验结果表明该方法有较好的不可见性和较强对抗攻击的鲁棒性.-Based on support vector machine (SVM) and genetic algorithm (GA), discrete cosine transform (DCT) doma
dct
- 二维DCT编码,实现图像的运动估计,较好的完成估计任务。-Two-dimensional DCT coding for image motion estimation, a better estimate to complete the task.
work
- 在DCT域进行图像检索,分别采取了对DCT块的边缘类型提取以及纹理特征提取两个方法-Image Retrieval in DCT domain, DCT blocks were taken on the edge of the type and texture feature extraction method of extracting the two
watermark
- 基于DCT的水印图像matlab代码,主要是水印嵌入和水印提取两大主要部分-DCT-based image watermarking matlab code, mainly watermark embedding and watermark extraction are two main parts
DFTandDCT
- (1)离散余弦变换DCT基底灰度图像绘制(2)离散傅里叶变换DFT基底灰度图像绘制-(1) discrete cosine transform DCT base gray image rendering (2) Discrete Fourier Transform DFT basal gray image rendering
DFT_and_DCT
- 对一幅图像进行DCT与DFT变换,分析变换后的高低频分量系数-DCT and DFT on an image, analysis of high frequency components of the transformed coefficient
showdib
- 这是一个DIP(数字图像处理)的实验程序,可实现初级的一些DIP图像处理,包FFT,DCT,walsh变换,图像翻转,加噪等操作。-This is a DIP (digital image processing) experimental procedures, can be a number of junior DIP image processing, including FFT, DCT, walsh transform, image flip, noise and other opera
2005-12-29_22-34-9_93
- 用VHDL实现dct.离散余弦变换(DCT)在图像编解码方面应用十分广泛,至今已被JPEG、MPEG1、MPEG2、MPEG4和H26x等国际标准所采用。由于其计算量较大,软件实现往往难以满足实时处理的要求,因而在很多实际应用中需要采用硬件设计的DCT处理电路来满足我们对处理速度的要求-Using VHDL implementation dct. Discrete cosine transform (DCT) in image decoding application of very exten
MATLAB2
- 基于DCT的图像检索技术 用统计特征法和不变矩法 MATLAB程序-DCT-based image retrieval method using statistical features and invariant moment method MATLAB program
DCT
- 图像的DCT变换-Image of DCT transform. . . . . . . . . . . . . .
dct
- 数字图像处理dct编码的程序,有详细程序加结果加分析,自己写的实验报告-Dct coding of digital image processing procedures, plus a detailed analysis of results of the processes, their written lab report
dct
- M=512 原图像长度 N=64 K=8 I=zeros(M,M) J=zeros(N,N) BLOCK=zeros(K,K) 显示原图像 I=imread( f:\ceshi\yuanshitu.bmp ) figure imshow(I) xlabel( 原始图像 ) 显示水印图像 J=imread( f:\ceshi\logistic_nuaa64.bmp ) figure imshow(J) xlabel(
image
- DCT算法实现,图像压缩的实现,图像压缩,视频压缩之类的代码,谢谢分享-DCT algrithem implementation