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JPEGencodinganddecoding
- 程序实现了JPEG的编码（DCT,Quantization,Zig-Zag Scaning,Differential Encoding,Run-Length Encoding,Huffman Encoding）和解码-Program achieved a JPEG coding (DCT, Quantization, Zig-Zag Scaning, Differential Encoding, Run-Length Encoding, Huffman Encoding) and Decodin
JPEGcode
- JPEG编码器,霍夫曼，量化表，直流交流，DCT，量化表-JPEG encoder
jpeg_coding
- 图片的jpeg压缩，包括dct，行程编码，huffman编码-Jpeg image compression, including the dct, stroke coding, huffman coding
matlab
- jpeg to data matrix in r,g,b
dct
- jpeg中的dct变换的实现程序，实现了二维vdct变换-jpeg in dct transform implementation procedures realized transform two-dimensional vdct
jpeg
- 一个简单的算法，jpeg中的前向DCT变换算法，供编码学习之用-A simple algorithm, jpeg of the former to the DCT transform algorithm used for encoding learning
itu-t81[1]
- Implementation of JPEG compression algorithm with JFIF header being appended.This project involves writting code for following steps : Chroma subsampling,partitioning ,level shifting,DCT,quantization,zigzag scanning(involves DC differential coding &
jpegcoding
- 实现 。BMP转变的。JPEG压缩 DCT变换->量化->z字形编码->DC差分编码-jpegcoding
2005-12-29_22-34-9_93
- 用ＶＨＤＬ实现dct．离散余弦变换(DCT)在图像编解码方面应用十分广泛,至今已被JPEG、MPEG1、MPEG2、MPEG4和H26x等国际标准所采用。由于其计算量较大,软件实现往往难以满足实时处理的要求,因而在很多实际应用中需要采用硬件设计的DCT处理电路来满足我们对处理速度的要求-Using VHDL implementation dct. Discrete cosine transform (DCT) in image decoding application of very exten
jpeg
- jpeg最新的编解码代码，特点是在dct过程中可以进行缩放，本算法应用到视频可减少视频中缩放的时间 -jpeg latest codec code, characterized in dct process can be scaled, the algorithm is applied to video scaling to reduce the time the video
imagedatabase
- 本文首先介绍了静态图像压缩（jpeg）编码算法的基本原理、压缩的实现过程及其重要过程的离散余弦变换（DCT）算法的实现原理及软件实现的例程，所需图像-This paper describes the static image compression (jpeg) coding algorithm is the basic principle of compression process and the important process of the realization of discret
ImageProcessing
- JPEG图像压缩标准MATLAB仿真程序。包括DCT变换及其逆变换、量化及反量化等过程。-JPEG image compression standard MATLAB simulation program. Including the DCT transform and its inverse transform, quantization and inverse quantization and other processes.
DCT_IDCT
- verilog code for DCT and IDCT (JPEG)
jpeg_compression_encode
- jpeg图像压缩编码程序,图像的DCT变换是调用Matlab自带的DCT变换函数dct来完成-jpeg image compression coding process, DCT transform is called the image that comes with Matlab DCT dct to complete the transformation function
Myproject
- It is a laboratory work from bsuir, where foto can be normilized by brightness, contrast, algorithm JPEG, dct idct
DCT
- JPEG标准中规定了4种压缩模式[15]：顺序编码（Sequential encoding），渐进编码（Progressive encoding），等级编码（Hierarchical encoding），无损编码（Lossless encoding）。应用最为广泛的为基于DCT变换的顺序编码，也称之为基准模式(Baseline mode)，其它几种模式都以此为基础。这里，采用了JPEG基准模式对图像进行压缩，在基准模式中，熵编码采用哈夫曼编码方法。 -JPEG standard specif
DCT_JPEG
- 给予matlab的JPEG压缩程序，包含原始压缩图片，程序对灰度bmp图片进行JEPG编码，压缩成以0101形式的编码。JPEG编码先把图象色彩RBG变成亮度Y和色度Cr、Cb，它利用人的视觉对色度不敏感的特点，减少一部分色度数据，以达到压缩。 JPEG采取多种编码方式，包含有行程编码(Run Length Coding)和哈夫曼(Huffman)编码，有很高的压缩比。在编码前，先对数据进行分块，离散余弦变换（DCT）及量化，保留能量大的低频信号，丢弃高频信号以达到压缩。-Given to th
123JEPG-example
- 图像压缩的matlab算法之JPEG，DCT算法。-matlab jpeg dct
DCT
- 基于DCT的数字水印处理技术，本水印处理过程利用图像的缩放技术和调整原始图像的直方图，根据人眼视觉特性,在每个DCT变换块的DC分量上嵌入水印信息，并且在水印信息嵌入之前,对其进行置乱加密,提供双重安全保证，接着通过JPEG压缩攻击对DCT域的鲁棒性进行测试，证明了DCT的抗攻击能力。-DCT-based digital watermarking technique, the watermark processing technology and the use of image scaling
gezhongyasuo
- 多种视频压缩算法，包括霍夫曼编码，算术编码dct，jpeg，小波变换-A variety of video compression algorithm, including Huffman coding, arithmetic coding DCT, jpeg, wavelet transform