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C++0314085
- JPEG 标准的最新进展是 1996 年开始制定, 2001 年正式成为国际标准的 JPEG 2000 。与 JPEG 相比, JPEG 2000 作了大幅改进,其中最重要的是用离散小波变换( DWT )替代了 JPEG 标准中的离散余弦变换。在文件大小相同的情况下, JPEG 2000 压缩的图像比 JPEG 质量更高,精度损失更小。作为一个新标准, JPEG 2000 暂时还没有得到广泛的应用,不过包括数码相机制造商在内的许多企业都对其应用前景表示乐观, JPEG 2000 在图像压缩领域里
jpeg中数据的时频转换
- 这是一个用C写的傅立叶变换,以及离散余弦变换的代码,在图象压缩中会用到-This is a C wrote Fourier transform, discrete cosine transform, and the code in image compression will be used
imagecoding
- some image compression technology
ImageandVideoCompressionofmultimediaengineering.zi
- 《多媒体图像视频压缩》英文原版书,包括近年出现的新技术,是不可多得得好材料。强烈推荐!-"Multimedia Video Image Compression" Internals, including the recent emergence of new technologies, good material is rare. Strongly recommended!
imginfo
- JPEG2000的程序,静止图象压缩编码相关程序-JPEG2000 procedures, still image compression coding procedures
LZW_CODE
- 高效的图片压缩程序代码,可以用于静态图片压缩-efficient image compression code that can be used in static image compression
mpeg4decsrc.rar
- 实现视频压缩功能,是最近比较新颖的压缩标准下的视频的图象压缩,Video compression is a relatively new design is the recent video compression standard for image compression
dct.rar
- 已知两个不同图像块亮度数据如下: (1)分析DCT原理,采用DCT方法,编程并计算相应的DCT系数,分析系数分布特点。 (2)依据视觉特性分析量化表步长的分布特点,完成DCT系数量化。 (3)采用Z形扫描,实现输出数据的统计编码,形成Video stream。 (4)采用IDCT重建图像亮度数据,计算SAD大小,分析产生误差的原因及采用DCT进行数据压缩的原理。( ) (5)分别利用左上角1、3、6个系数重建图像,计算相应的SAD,并由
JPG_compress
- JPEG图像压缩程序,用VC++实现,对JPEG图像压缩原理及编程方法有很大帮助-JPEG image compression process, using VC++ implementation of the JPEG image compression theory and programming methods are of great help
WaveletRecon
- 构造小波基的Matlab源代码,来自小波图像压缩教程-Construction Wavelet Matlab source code, from the wavelet image compression tutorial
mpeg2dec
- 进行图像编解码,在C环境下运行,以各种编码标准实现图像的压缩去除冗余-Image coding and decoding, in the C environment to operate in various coding standard image compression to remove redundancy
mpeg2enc
- 进行图像编解码,在C环境下运行,以各种编码标准实现图像的压缩去除冗余-Image coding and decoding, in the C environment to operate in various coding standard image compression to remove redundancy
MPEG4
- 进行图像编解码,在C环境下运行,以各种编码标准实现图像的压缩去除冗余-Image coding and decoding, in the C environment to operate in various coding standard image compression to remove redundancy
TMS320DM642_MPEG4.pdf
- 基于编码TMS320DM642的MPEG4编码器设计与实现。为满足视频通信中视频压缩的需要,在对MPEG4视频编码标准研究的基础上,提出了基于TMs32ODM642 DSP的MPEG4视频编码器的实现方案,并讨论了代码优化的方法,通过相关实验对提出的方案进行了编验证。实验结果表明,该方案实现了对标准QCIF格式图像序列的MPEG4编码,编码速率达到25 fps,满足了实时码的要求,图像质量满足 了预期效果。-TMS320DM642-based encoding of the MPEG4
waveletandcomp
- 根据对所输入的png格式的真彩图像、小波类型(db9或haar)和相应的阈值进行了三级非标准小波harr或db9的分解和重构,从而达到了对原图像的压缩处理的 -Entered based on the true color of the png format images, wavelet type (db9 or haar) and the corresponding threshold for the three non-standard or harr wavelet decompos
lab2
- digital image and video compression
Multimedia
- image compression popularity
SHEXIANGTOUZILIAO
- 摄像头接到开始命令后开始采集图像,并将图像压缩为JPEG格式,摄像头采取分包传递的方式,每传递一个包后,只有上位机得到确认命令(即摄像头取图命令)后,摄像头才开始传下一个包,直到图像传递完成。-Camera after receiving the start command to capture images, and image compression for the JPEG format, camera to take sub-transmission mode, each passing
compression
- JPEG 2000 is an image compression standard and coding system. It was created by the Joint Photographic Experts Group committee in 2000 with the intention of superseding their original discrete cosine transform-based JPEG standard (created in 1992) wi
video-compression
- 该图像压缩算法参考MG.Jordon博士发布的开源代码,作者对部分内容进行了优化,包括了帧内编码、帧间编码,DCT变换编码、自适应量化等。-The image compression algorithm reference Dr. MG.Jordon released the open source code, the author of some of the contents of the optimization, including the intra coding, inter fra