搜索资源列表
DCT
- dct image steganography
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.
DCT
- 进行一维，二维，三维离散余弦变换，计算变换所需时间。-One-dimensional, two-dimensional, three-dimensional DCT transform
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-FT
- DTC变化，傅里叶变换，基于DCT的压缩变换-DTC changes, Fourier transform, DCT-based compression transform
DCT-AND-IDCT
- VC++实现DCT和IDCT,是可以实现的。-DCT AND IDCT WRITTEN BY VC++
DCT-change
- 1.实现对lena.bmp灰度图像的快速傅立叶变换,并求其变换后的系数（幅度）分布； 2.实现对lena.bmp图像做离散余弦变换,选择适当的DCT系数阈值对其进行DCT反变换 ；-1 to achieve the fast Fourier transform on lena.bmp grayscale image, and to find the transformed coefficients (amplitude) distribution 2. To achieve lena.bm
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
- This code will compress any image. As DCT is a lossy compression hence it will reduce the size of the image with some losses.
dct-dft--dwt
- 基于Matlab的压缩感知DCT、DWT、DFT正交基及过完备字典稀疏分解信号及重构-Matlab-based compression perception DCT, DWT, DFT orthogonal basis and complete dictionary signal sparse decomposition and reconstruction
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--yasuo
- 基于dct，matlab，编码，图像压缩，很有意思，下载吧-On dct, matlab, coding, image compression, is very interesting, download it
watermark-dct
- 一种基于DCT变换的水印嵌入和提取的程序。-Based on the DCT watermark embedding and extraction procedures.
DCT-decomposition-image-inpainting
- 基于自适应DCT分解的频率域的数字图像修复算法-Digital image restoration algorithm based on adaptive DCT-decomposition
2d-dct
- 多维矢量矩阵理论中，2维dct能量集中性测试c++代码-Multi-dimensional vector matrix theory, the two-dimensional DCT energy the centralized testing c++ code
DCT--watermark
- DCT域算法大都是根据图像信号不同频段的特性提出的。从理论上讲，任何频段都可以利用，但在不同的频段调制出的水印却有着不同的特性。DCT域的自适应水印算法，利用HVS将图像的灰度和反映图像纹理的块均匀度作为基准，确定水印的强度。根据强度掩蔽特性和纹理掩蔽特性，使得水印强度能够自适应于原始图像。-DCT-watermark method
dct
- code is based on the satellite filter based technique dct compressioin
dct
- 使用dct对灰度图像进行处理 以实现dct系数的量化 图像的模糊处理-Dct gray-scale image processing to achieve the DCT coefficient quantization image obfuscation
DCT-TO-WAVE
- 用DCT变换模拟小波变换的结果，实现小波变换的分块分层显示。-DCT transform analog wavelet transform, wavelet transform block hierarchical display.
e-DCT
- DCT copy move forgert detection.