搜索资源列表
Dctlab
- 关于图像DCT压缩编码解码的MATLAB程序，适合初学者。希望对大家有用！-on DCT compression codec MATLAB procedures for beginners. We hope that the right useful!
DCT
- 基于Matlab GUI的图像的DCT，自由调节压缩率，计算峰值信噪比，并图形化对比还原图像-Matlab GUI for image-based DCT, freely adjust compression rates, the peak signal to noise ratio, and reduction of image contrast graphic
DCT
- 将图象分块(8*8)，作DCT变换，并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码，IDCT用来解压缩。-The image sub-block (8* 8) for the DCT transform, and to make IDCT: DCT is a separable image transformations, is used to image compression coding, IDCT is used to decompress.
sbc
- Wavelet Subband coding for speaker recognition The fn will calculated subband energes as given in the att tech paper of ruhi sarikaya and others. the fn also calculates the DCT part. using this fn and other algo for pattern classification(VQ,GMM
dct-fft
- This the Discrete cosine tranform matlad code which is useful for image compression and also it show-This is the Discrete cosine tranform matlad code which is useful for image compression and also it show
jpeg_encode+decoderhojoon
- This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -
rgbquadtreehojoon
- This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -
dctcompr
- 基于DCT变换的图像压缩，分别给出了灰度图和真彩图的压缩方法。-DCT-based image compression, respectively, are given grayscale and true color pictures of the compression method.
DCT
- 对图像信号进行DCT压缩和编码及加噪滤波后的恢复-DCT on the image signal compression and coding and increase the recovery of the filtered noise
dct-wave
- dct与小波压缩，适用于毕业设计和论文呢-dct and wavelet compression
KL_transfer
- kl变换，dct，dft变换以及信号压缩-kl transform, dct, dft transform and signal compression
jpeg
- jpeg compression , use DCT, Zigzag, Quantization,IDCT, InvZigzag, huffman to do the compression with matlab
MATLABimagecompression
- 共7个matlab程序及两幅原始待处理图像，功能是图像压缩的实验，分别运用了DCT（1个程序），小波变换（5个程序）和小波包变换（1个）对图像进行压缩，各个程序的作用及程序注释已在程序中做了详细说明,程序均可直接运行-matlab program for image compression ,using DCT wave,wavelet,wavelet packet methods respectively .
projectdemo
- this project demo consists of the DCT transform using image compression appllications.
dct
- 离散余弦变换,实现数据的压缩以及相应噪声的去除-Discrete cosine transform, data compression and noise removal of the corresponding
exa080903_LOT_1D
- 利用子程序fast-lot.m,实现对该图像的变化及压缩，并和以为信号做dct后的图像质量相比较。-Using subroutine fast-lot.m, to achieve the changes and compression of the image, and after, and that the signals do dct compare the image quality.
DCT-for-image-compression-
- 利用DCT进行图像压缩（首先将图像分割成8×8的图像，对每个子图像进行DCT，这样每个子图像有64个系数，舍去50％小的变换系数，进行2：1的压缩。）-Using DCT for image compression (first image into 8 × 8 image, for each sub-image DCT, so that each sub-image by a factor of 64, rounding 50 of the small transform coefficie
DCT-MATLAB
- 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 using grayscale image compression, the compression ratio obtained compare different compression ratio of the image.
MATLAB数字水印[GUI,dwt,dct,lun文]
- 该课题为基于MATLAB的数字水印系统。包括离散余弦DCT和小波变换DWT两种算法的对比，有一个GUI界面，包括嵌入，加噪，旋转，剪切，压缩等多种攻击，提取候，具有评价指标PSNR,NC等来评价算法的鲁棒性(This project is a digital watermarking system based on MATLAB. It includes the comparison of DCT and DWT. It has a GUI interface, including embedd