搜索资源列表
KL
- 用MATLAB仿真KL变换，并与DCT变换进行了比较-KL transform using MATLAB simulation and a comparison with the DCT transform
DCTtools
- Matlab code for doing DCT and inverse DCT
TwoDimDCT
- 2D DCT in matlab. inputs are original data and block size. ex) block size = [8 8]
jpegread
- 本程序用于在matlab中读取jpeg格式图像的DCT系数- read dct coefficients in jpeg image
jpeg
- JPEG的压缩编码及其matlab实现，包含了DCT变换，量化，AChuffman编码，DChuffman编码。-Of JPEG compression matlab to achieve, including the DCT, quantization, AChuffman coding, DChuffman coding.
1231313131
- 对JPEG的压缩标准进行了仿真，主要过程DCT压缩，根据JPEG的量化矩阵对DCT结果进行量化，对量化结果进行Huffman编码。同时也实现了解压缩过程，即执行上述过程的逆过程-Matlab image compression
watermark
- 文件夹LSB中是空域LSB算法程序，文件夹COX中是Cox算法主要程序，文件夹DCT中是频域加在中频的算法的程序。 步骤：把LSB，COX，DCT三个文件夹考在MATLAB目录下； 运行lsb_embed,programme,dct2_embed_mod即可。其中PSNR.m是计算峰值信噪比程序；attact.m & robust.m是攻击程序。-Content: folder LSB of spatial LSB algorithm program, folder COX Cox a
Lou
- Matlab Code for: Removing the Blocking Artifacts of Block-Based DCT Compressed Images in IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 12, NO. 7, JULY 2003-Matlab Code for: Removing the Blocking Artifacts of Block-Based DCT Compressed Images
DCTCOMPRESSION
- DCT COMPRESSION USING MATLAB
image-compression
- 图像压缩的matlab源码，基于dct的静态图像的压缩-Image compression matlab source code, based on the the dct static image compression
soundDCT
- 读入语音信号并对其进行dct变换进行压缩变换的matlab程序-Reading the speech signal compression transform Matlab procedures and dct transform
11
- matlab代码，实现DCT变换 -matlab code, DCT transform matlab code, DCT transform
tuxiangyasuo
- （1）试利用函数dct2，对该图像进行压缩。压缩时可尝试对DCT 变换后的系数采用不同取舍方法，比较其压缩性能。（函数dct2在matlab本身是有的，可以help dct2看看） （2）结合课本例8.7.2 的量化方法，对每一个经DCT变换后的8×8 矩阵量化（Huffman编码部分可省略），从而实现图像压缩。在一定压缩比的情况下，和⑴给出的图像质量相比较。 （3）用所给的子子程序fast_LOT.m 实现对该图像的变换与压缩，并和（1）得出的图像质量相比较-(1) Test usin
zigzag.pdf
- matlab DCT zigzag function
projet
- GUI for digital watermarking with four methods: LSb, LSB by concatenation, DCT , DWT in matlab
dcttest---Copy
- matlab code for DcT watermark
TransformCoding
- Matlab code to study the decorrelation and energy packing efficiency of three transform techniques: Karhunen-Loève transform (KLT), discrete-cosine transform (DCT), and Walsh-Hadamard transform (WHT). Using a given vector of signal samples, it tra
tuxiangyasuo
- matlab程序：基于dct的任意压缩比的图像压缩的实现。-Matlab program: to achieve arbitrary DCT compression ratio of image compression based on.
GUIku
- simple coding for dwt dct svd matlab
Frequency_Domain
- 数字信号频域处理的matlab源程序，包括dct，butterworth，lowpass等-Frequency-domain digital signal processing matlab source, including dct, butterworth, lowpass, etc.