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dct
- bmp DCT 压缩 对原图像进行DCT变换，数据压缩，丢弃右下角高频数据，进行DCT反变换，得到压缩后的图像-bmp DCT compression of the original image DCT transform, data compression, discarding the lower right corner frequency data, DCT inverse transform, the images are
dct
- DCT域数字水印嵌入算法MATLAB实现-DCT domain watermarking algorithm MATLAB Implementation
dct
- 在一个图像块中调整两个(或多个) DCT系数的相对大小。将描述一个使用数字图像作为载体的系统。在编码处理中，发送者将载体图像分成8×8的像素块，每一块只精确地编码一个秘密信息位。嵌入过程开始时，首先伪随机地选择一个图像块bi，用它对第i个消息比特进行编码。令Bi=D{bi}为DCT变换后的图像块。 在通信开始前，发送者和接收者必须对嵌入过程中使用的两个DCT系数的位置达成一致，让我们用(u1,v1)和(u2,v2)来表示这两个索
dct
- 好东东哦，希望大家来下载，是 我们本科毕业设计论文成果，基于dct域的数字水印技术
DCT
- 用matlab对一张图片进行DFT变换，DCT变换,比较保留20个DCT变换系数重构的图象与原始图像的差别.-Using matlab on a picture to DFT transform, DCT transform, compared to 20 DCT transform coefficients to retain the image reconstruction of the difference between the
DCT
- 利用matlab实现基于DCT变换的变焦距图像融合-Using matlab to achieve DCT-based image fusion Zoom
dct
- 这是一个基于DCT的数字水印技术的研究，有详细的程序和代码-DCT watermarking
DCT
- 读入一幅256*256图像，将它分成8*8pixel的若干块，对每块做DCT变换，保留Z型顺序的若干变换系数，进行IDCT重构图像，计算重构图像的信噪比-Reading a 256* 256 image, it will be divided into several blocks of 8*8 pixel, keep each optimal Z transformation of sequence number, IDCT tran
DCT
- 基于Matlab GUI的图像的DCT，自由调节压缩率，计算峰值信噪比，并图形化对比还原图像-Matlab GUI for image-based DCT, freely adjust compression rates, the peak signal to noise ratio, and reduction of image contrast graphic
DCT
- 用matlab实现的灰度图像DCT变换的源程序。-Matlab implementation of the gray image with DCT transform of the source.
DCT
- 基于DCT域数字图像水印的MATLAB实现-DCT domain based on MATLAB implementation of digital image watermarking
dct
- all ok...4 Dec 2009 ... In this method the 2-Dimensional DCT is obtained by taking two ... column-wise 1D DCT is ascertained which gives the 2D DCT of the data. ... The design is done in Verilog HDL and the simulation is
dct
- 图像的DCT变换，颜色空间的变换，结合OPENCV对图像进行二维空间的肤色提取-The image DCT, color space conversion, combined with OPENCV two-dimensional space of the color image extracted
DCT
- 实现了彩色图像上的DCT变换和DCT反变换-Color image on the realization of the DCT transform and inverse transform DCT
DCT
- 二维离散余弦变换 c# 实现图像压缩和特征提取 -Discrete Cosine Transform for Feature Extraction Decription: Implementation of 2D discrete cosine transform in c# Download source: http://www.codeproject.com/KB/GDI/2D-DCT.aspx
DCT-digital-watermark
- DCT的数字水印的源代码，实现效果不错，大家可以参考参考-the open code about digital watermark of DCT
dct-image-compression
- 裡面有包含圖片跟jpeg壓縮的主要程序DCT的演算法,會秀出作dct轉換的前後圖片-Contains a picture inside the main program with the jpeg compression algorithm DCT will be showed off pictures before and after conversion for dct
DCT
- vc实现的dct变换 源码及程序-vc source code to achieve transformation and procedures dct
Audio-Watermarking-in-DCT
- 本文在DCT噪声信号模型研究的基础上,提出了一种新的音频水印嵌入位置选择策略和一个应用该策略的自适应音频水印算法. 通过定义DCT系数的噪声敏感度,建立了水印嵌入位置和嵌入水印后的音频信号的听觉感知性之间的关系,根据音频水印的不可听性的要求选择最优的嵌入位置,然后调节水印强度来满足鲁棒性的要求,从而最大程度地保持音频水 印的不可听性和鲁棒性,为解决音频水印嵌入过程中不可听性和鲁棒性之间的矛盾提供了一种策略.-Though m any
DCT-Implementation
- The 8x8 discrete cosine transform (DCT) is an efficient, real-valued transform often used in image compression. Special, fast algorithms for the DCT have been developed to accommodate the many arithmetic operations i