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DCT-change
- DCT变换图像处理，给出了源码和实现过程，是一个毕业设计-DCT transform
dct-Watermark
- 基于DCT变换以及人类视觉特性的数字水印算法 水印为二值图像-Digital watermarking algorithm based on DCT transform and human visual watermark is a binary image
DCT
- 图像压缩。对图像进行DCT变换。 取灰度图，DCT,IDCT。-Discrete Cosine Transform of an image
DCT-watermark--
- DCT变换的水印嵌入和提取 根据相似性的值就可以判断图像中是否含有水印-DCT watermark embedding and extraction according to the similarity value can determine whether it contains a watermark image
DCT---
- DCT变换的水印嵌入和提取 根据相似性的值就可以判断图像中是否含有水印-DCT watermark embedding and extraction according to the similarity value can determine whether it contains a watermark image
DCT
- DCT变换系数的求解及丢掉一部分高频信息后的重建图像-Solving and lost part of the high-frequency information of the reconstructed image of the DCT coefficients
DCT
- 实习图像的DCT变换与反变换，及图像加解密功能。-Practical image DCT transform and inverse transform, and image encryption and decryption.
DCT
- 利用DCT变换对灰度图像进行压缩，求出压缩比；对比不同压缩比的图像-DCT transform compressed gray image compression ratio is obtained comparing different image compression ratio
Dct
- 基于DCT 变换的JPEG 图像压缩的MATLAB 实现-DCT-JPEG image compression MATLAB implementation
DCT
- 利用DCT变换实现两幅大小相同的图像的水印嵌入，包含水印图像的处理，水印的嵌入和提取。及PNSR的计算-DCT transform two of the same size image of the watermark embedding, contain watermark image processing, the watermark embedding and extraction. And PNSR calculation
DCT-a-Hamming-coding
- 1.DCT变换，对整个图像的直接DCT变换和分块为8*8做DCT变换，并设定阈值。 2.汉明编码（7，4），译码以及找出错误图样和纠错。并在不同的转移概率的BSC道下进行传输。-DCT:Direct DCT and IDCT,blocking. hamming coding:decoding and picking up errors.
DFT-and-DCT-transformations
- 二维离散傅里叶变换和离散余弦变换同属于图像的二维正交变换，它们在图像处理中有 着极为重要的应用价值。利用这些正交变换可以获得图像的频域信息，从而实现图像的增强、复原、编码和描述。本文将描述对图像进行DFT 和DCT 变换的过程。在进行DFT 变换后，还会将图像的幅频、相频特性进行置换操作后反变换，并探讨其中的规律；而在DCT 变换后，还将探讨如何选取DCT 系数点以实现图像的复原。请先阅读压缩包内的pdf文档。-This code implements the DFT and DCT tra
DCT
- 数字视频图像处理大作业。MPEG-1、MPEG-2及JPEG标准中都采用了基于图像块的DCT变换编码，根据已学知识完成下列问题：-Digital video image processing operations.Mpeg-1, mpeg-2, and JPEG standard are adopted based on image block DCT transform coding, according to the knowledge to complete the following q
DCT
- 基于dct变换，实现matlab图像压缩源码，很有意思-Based on DCT transform, matlab image compression source code, very interesting
DCT
- 用matlab实现图像的DCT变换,将高频细节点忽略达到压缩的目的-Using matlab image DCT transformation, the high-frequency detail to achieve the purpose of compression point ignored
dct
- 通过DCT变换实现对图像的压缩，压缩后图片基本与原图像相同。-Through the DCT transform for image compression, image compression basically the same as the original image.
DCT-based-image-coding-
- 基于DCT变换的图像压缩matlab实现，开发环境为matlab-DCT-based image compression matlab implementation, development environment for matlab
dct-quanlity-snr
- 对一幅图像进行不同量化水平的DCT变换，可以应用于不同分块大小下的DCT变换测试。-On an image to quantify the level of different DCT transform, can be applied to different sub-block size DCT transform under test.
DCT
- 通过二维图抽象的DCT变换，取前n和系数进行重构得到的图像进行显示-Two-dimensional map by abstraction of DCT, take the first coefficient n and displays the image reconstructed by
DCT
- 将一个512×512的lena.bmp图像进行DCT变换，对得到的DCT系数按8×8块进行分层（分三层），重组填充得到新的系数矩阵，结果发现原图像的能量集中在了新图像的左上角低频部分。-The lena.bmp an image of 512 × 512 is subjected to DCT transform, the DCT coefficients obtained by layering 8 × 8 block (of three), to obtain a new recombina