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[OS program] ZCR DL : 0: 对一帧YUV为4:2:0的图象进行DCT变化和量化以及进行反变换和反量化，并在dos下显示出一个4*4矩阵的变化和量化过程
Date : 2008-10-13 Size : 130.53kb User : andy
[OS program] 数字水印 DL : 0: 对原始信号做DCT的算法：Cox 和Piva 等人提出的DCT技术的经典之作。Cox利用随机数发生器产生标准正态序列作为水印信息对图像进行整体DCT变换后，选取除去DC系数之外部分较低频率系数叠加水印信息 Piva则修改整幅图像的中频部分。对原始信号分块后，再作DCT的算法：Hsu和Wu 把图像进行8*8分块，将一个二进制序列作为水印放入DCT的中频区；有些学者则计算整个图像的DCT，把一个实数序列嵌入DCT的中频系数上。选择中频区的好处是一方面尽量减少嵌入信息对图像主观视觉的影响；同时，尽量避免有损压缩对水印信息可能带来的损失。还有一种DCT方法就是把水印信息嵌入到高频系数上，但是采用这种方法，抗压缩性非常差。-done to the original signal DCT algorithm : Cox Piva and others made the DCT technology classic. Cox using random number generator producing standard normal sequence information as a watermark image of the overall DCT, DC coefficient selection removed outside some lower frequency coefficient superposition watermark information Piva will be replaced by images of the entire IF part. The original signal block, before making the DCT algorithm : Wu Hsu and put images 8* 8 block, a binary sequence as watermarks Add DCT IF; Some scholars calculated whole image of DCT, a real sequence embedded IF DCT coefficients. IF the choice is a good one to minimize the embedded information to the subjective visual images; Meanwhile, try to avoid Compression right watermark information possible losses. There
Date : 2025-12-22 Size : 33kb User : 圣子到
[OS program] MMX_src DL : 0: mmx汇编教学程序及源码，用于优化程序，提高效率-mmx compilation of teaching procedures and source for the optimization procedure to enhance efficiency
Date : 2025-12-22 Size : 298kb User : wx
[OS program] ZCR DL : 0: 对一帧YUV为4:2:0的图象进行DCT变化和量化以及进行反变换和反量化，并在dos下显示出一个4*4矩阵的变化和量化过程-Of a YUV to 4:2:0 image and quantify changes to DCT, as well as anti-transform and Inverse Quantization, and under dos shows a 4* 4 matrix of the process of change and to quantify
Date : 2025-12-22 Size : 320kb User : andy
[OS program] DCT DL : 0: 按照离散余弦变换的定义编写的C++程序，可以在VC上运行-DCT C++
Date : 2025-12-22 Size : 1kb User : Liuji
[OS program] dct-alg DL : 0: ios编程语言参考，适合刚刚接触ios编程的初学者，书是第二版的，请下载时注意版本。-ios programming language reference, just contact ios programming for beginners, is the second edition of the book, please download the version when the note.
Date : 2025-12-22 Size : 1kb User : 赵严军
[OS program] watermark DL : 0: 基于DCT域的图像数字水印技术：摘要：数字水印技术作为数字媒体版权保护的有效办法，近年来在国内外引起了人们极大的兴趣。作者采用了DCT离散余弦变换的算法，对图像这种多媒体数字作品进行了数字水印的嵌入和检测研究。并且使用了高效实用的编程工具MATLAB来介绍了一种DCT域的图像数字水印嵌入和提取的 -DCT domain of image-based digital watermarking technology: Abstract: digital watermarking technology as an effective way of copyright protection of digital media, both at home and abroad in recent years has aroused great interest of the people. The DCT discrete cosine transform algorithm of digital watermark embedding and detection, the image of this multimedia digital works. Practical and efficient programming tools and use MATLAB to introduce a DCT domain image watermarking embedding and extracting
Date : 2025-12-22 Size : 438kb User : 赵杰
[OS program] 113223421412 DL : 0: 基于DCT人脸识别算法代码，运行环境是在MATLAB中-A MATLAB based Face Recognition System using Image Processing and Neural Networks
Date : 2025-12-22 Size : 37kb User : 藏锋
[OS program] 58876 DL : 0: Digital image watermarking using dct svd on color image
Date : 2025-12-22 Size : 307kb User : priyanka
[OS program] dct-svd DL : 0: digital color image watermarking based on dct-svd usinf differential evolution
Date : 2025-12-22 Size : 307kb User : priyanka
[OS program] New-folder DL : 0: Image stegnography USING DCT
Date : 2025-12-22 Size : 5kb User : Niveditha
[OS program] watermarking DL : 0: 本版本为bmp图像空域及jpeg图像DCT域嵌入可见水印的测试版本：图片使用测试图片文件夹下的图片，需选择原始图像，logo图像以及含可见水印的保存路径。-water marking
Date : 2025-12-22 Size : 5.64mb User : leegend
[OS program] OFDMwithwindowing DL : 0: 通过窗函数以及DCT方法降低OFDM系统的误码率-OFDM system to reduce the error rate by a window function method and DCT
Date : 2025-12-22 Size : 16kb User : 王小青
[OS program] bhite DL : 0: 用SSE2汇报语言实现的H,264视频编码标准中的DCT变换-Use SSE2 reporting language implementation H, DCT transform in video coding standard, 264,
Date : 2025-12-22 Size : 12kb User : Dzxia
[OS program] Thiseveryone DL : 0: 这是一个关于dct的c实现的算法,,编的还比较好,希望对大家有用-This is a c implementation of DCT algorithm, and is relatively good, hope useful for everyone
Date : 2025-12-22 Size : 2kb User : benenic
[OS program] thcrualnze DL : 0: 其功能是实现对图象的DCT(离散余弦变化)变化,包含原始以及C代码,-Its function is to realize the DCT (discrete cosine) changes of the images, contains the original and C code,
Date : 2025-12-22 Size : 116kb User : qDDIrdx
[OS program] AGS DL : 0: matlab dct－lms自适应算法仿真例子,该例子做了dct－lms和lms的比较,(Matlab DCT - LMS adaptive algorithm simulation example, the example has made the DCT - LMS and the comparison of LMS,)
Date : 2025-12-22 Size : 5kb User : lvalme
[OS program] vwfshl DL : 0: 在matlab中实现DCT变换,对初学者有一定的用处,不错的(Is realized in matlab DCT transformation, has a certain useful for beginners. Good)
Date : 2025-12-22 Size : 3kb User : zosifp
[OS program] HPELT_edge_frame DL : 0: dct域内视频的上采样了,Dct the upper sampling of the video()
Date : 2025-12-22 Size : 129kb User : menevirvk
[OS program] dmagram_cover_symbol DL : 0: dct域内视频的下采样源程序,分辨率从1080×1920下采为480640()
Date : 2025-12-22 Size : 396kb User : WMJ%25244067