搜索资源列表
dddddd
- :数字水印技术在数字产品的版权保护中起着非常重要的作用。概括了数字水印技术的现状及其基本原理,并 分析了变换域数字水印算法的优势,详细阐述了DCT 水印嵌入和提取算法的原理和步骤。最后在Matlab 平台下对DCT 数 字水印算法进行了仿真,仿真结果证实了DCT 算法的强健性和鲁棒性。-: digital watermarking technology in the digital copyright protection products played a very important
lloyd_max
- dct- computes de discrete cosine transform for a matriz 8*8 from a picture.It receaves the point of the block where begin calculate, the tam of the block and the original picture... lLoyd-max- computes de lLoyd-max optimum quantizer for N bits.
ch2
- 第2章 信号变换 67 2.1 Z变换及MATLAB实现 67 2.1.1 Z变换的定义 68 2.1.2 Z变换的收敛域 68 2.1.3 Z逆变换 70 2.1.4 Z变换的性质 72 2.1.5 Z变换的工程应用 74 2.2 Chirp Z变换及MATLAB实现 77 2.2.1 Chirp Z变换的定义 77 2.2.2 Chirp Z变换的计算方法 79 2.2.3 Chirp Z变换的MATLAB实现 80 2.3 离散傅里叶变换及MAT
11
- 基于DCT变换的水印算法实现论文的开题报告，文献综述，外文翻译-DCT-based Watermarking Algorithm Transform implementation problem that thesis report, literature review, foreign language translation
DC-SA-DCT2
- 校正任意形状DCT变换的矩阵不归一化，PSNR提高，基本是最佳校正方法-Calibration of arbitrary shape DCT transform matrix is not normalized, PSNR improve, the basic is the best correction method
Asequence-basedembeddedDCTdomainwatermarkingalgori
- ，应用MATLAB仿真按序选择嵌入位的DCT变换算法，对仿真程序运行后的各种参数 和效果图的变化进行了分析；最后结合GUI开发设计出数字水印执行过程仿真控制界面，并用常见的水印攻击测试了该算 法的鲁棒性。-Application MATLAB simulation embedded spaces in sequence selection algorithm of DCT transform, simulation program running on the various param
3
- 图像有损压缩-FFT-DCT变换后再次还原的-Image lossy compression-FFT-DCT transform again to restore the
dctwater
- 一种基于DCT域的不可见数字水印算法，文章源于IEEExplore-PERCEPTUAL DIGITAL WATERMARK OF IMAGES USING WAVELET TRANSFORM.pdf,down loaden from IEEE xplore
precision
- dct transform 2d 변 환 과 정 을 나 타 내 는 소 스 코 드 -dct transform 2d 변 환 과 정 을 나 타 내 는 소 스 코 드
DCT_TR802.pdf
- The Discrete Cosine Transform (DCT) Theory and Application
aa
- Adaptive Blind Video Watermarking Algorithm using DCT transform
jpegencoding
- 该文档详细描述了JPEG编码过程，涉及色系变换、DCT变换、量化、Huffman编码等关键步骤，适合JPEG编码入门学习。-The document is a detailed descr iption of the JPEG encoding process involves color transform, DCT transform, quantization and Huffman coding key steps, learning portal for JPEG encoding.
DCT
- 提出了一种基于DCT提取人脸特征技术和支持向量机分类模型的人脸识别方法。利用离 散余弦变换可提取人脸可识别的大部分信息,而支持向量机作为分类器,在处理小样本、高维数等 方面具有独特的优势,且泛化能力很强,无需先验知识。从ORL 人脸库上的实验结果可以看出, DCT特征提取是很有效的,且SVM的分类性能优于最近邻分类器,同时提高了整个系统的运算速 度。-A face recognition method based on DCT for face feature extractio
Block-DCT-transform
- 分块DCT变换，基于压缩感知信号的压缩。详细阐述了信号基于DCT分块的变换算法。为后面的信号压缩和恢复做铺垫。-Block DCT transform based on compressed sensing signal compression. Elaborates the signal based on the sub-block of DCT transform algorithm . For the following signal compression and pave the wa
matlab-DCT-watermark
- 基于离散余弦变换的数字水印嵌入以及实现代码-Embedded watermarking based on discrete cosine transform and implementation code
program-for-dt-cwt-transform
- i need the matlab coding for image fusion using different types of techniques . so, i need the particular coding your file. i need different types pf transform like IHS,PCA, DCT, and brovey transform.- i need the matlab coding for image fusion using
DCT
- discrete cosine transform
DCT
- this code compress .wave file with DCT(disceret cosine transform) algorithm
DCTprocessing
- DCT 变换，包括实验图片，可直接实现DCT变换-DCT transform, including experiment picture. the soft can complete directly DCT transform
DCT
- 数字图像处理，DCT变换编码，图像压缩，遮罩矩阵(DCT transform coding, image compression)