搜索资源列表
-
0下载:
jpeg2000图象编码,采用小波变换和EBCOT编码,具有比JPEG更好的图象编码效果.-jpeg2000 image coding using wavelet transform and EBCOT. better than JPEG image coding results.
-
-
0下载:
本文详细说明了jpeg2000的发展过程,及其与小波变换的联系。-paper jpeg2000 detailed descr iption of the development process, and its wavelet transform ties.
-
-
0下载:
新一代静止图像压缩编码标准JPEG2000概述* 丁贵广 郭宝龙 西安电子科技大学 机电工程学院 西安 710071 guiguangd@263.net 摘要随着多媒体技术应用的不断增加图像压缩技术不仅要求具有较高的压缩性能而且还要求有新的特征来满足一些特殊的要求为此国际标准化组织ISO指定了新一代静止图像压缩标准JPEG2000本文通过对JPEG2000中核心算法EBCOT的详细分析阐述了JPEG2000压缩标准新的特征以及与现有压缩标准相比显示出来的优越性能 关键词JPEG2000小波变换E
-
-
0下载:
用VC写的一个小波正反变换.新一代静止图像压缩标准JPEG2000将离散小波变换(DWT)作为其核心变换技术.-VC write a wavelet transform pros. A new generation of geostationary JPEG2000 image compression standard of discrete wavelet transform (DWT) as its core technology transformation.
-
-
2下载:
基于Matlab的JPEG2000图像压缩实现,离散小波变换DWT,程序中图片的位置修改下可以自己运行程序看到效果-Matlab-based implementation of the JPEG2000 image compression, discrete wavelet transform DWT, where the image changes the program may be run its own program to see results
-
-
0下载:
JPEG2000是新一代静态图像压缩标准,它具有优良的压缩性能和很高的灵活性。介绍了JPEG2000的编码流程,研究了它的核心算法,重点分析了JPEG2000所采用的提升小波变换。并得出JPEG2000与传统的图像压缩标准相比确实具有更加优越的性能的结论.-JPEG2000 is the next generation still image compression standard, it has excellent compression performance and high flexi
-
-
0下载:
本文提出了一种基于提升算法的高效JPEG2000二维离散小波变换(2D—DWT)~ 结构,将边界延拓内嵌于离散小波变换过程中,减少了所需的内存空间和功耗。采用W 扫描输入方式和行列并行处理结构,加快了变换速度,大大提高了小波变换的效率。整个二维离散小波变换结构已经通过FPGA硬件仿真验证。-This paper presents a highly efficient algorithm based on lifting JPEG2000 two-dimensional discrete wave
-
-
0下载:
基于实数的二进制表示法,把CDF(Cohen,Daubechies and Feauveau)9/7双正交小波基的提升系数化为二进制,采用简单的移位一加操作代替结构复杂的浮点乘法器,从而实现了JPEG2000中9/7离散小波变换的定点计算.相对于浮点计算法,移位一加操作最大的优点是计算简单,特别易于超大规模集成电路实现,因而使硬件实时处理图像信号成为可能.实验仿真结果表明:在低压缩比的情况下,用移位一加操作重构的图像,其峰值信噪比(PSNR)只比浮点法低0.10 dB,当压缩比增大时,其PSNR
-
-
2下载:
Le Gall 5/3 小波变换及其反变换,可用于JPEG2000无损压缩中-Le Gall 5/3 wavelet transform and its inverse transform,which can be used for lossless compression in JPEG2000
-
-
0下载:
本代码是用VC实现JPEG2000的图象处理程序,算法是采用的小波变换!-This code is the implemation of JPEG2000 in VC! The key algorithm is wavelet transform!
-
-
0下载:
对 JPEG2000 进行小波的 CDF 97 变换-CDF 97 Wavelet Transform
-
-
0下载:
小波变换是JPEG2000中最重要的部分,这是其在VC++中的实现的-Wavelet transform is the most important part of the JPEG2000, which is in VC++ in the realization of
-
-
0下载:
用VC实现JPEG2000的图象处理程序,算法是采用的小波变换.-Using VC to achieve JPEG2000 image processing procedures, the algorithm is the use of wavelet transform.
-
-
0下载:
小波变化代码,是比较好的测试向量,包括位平面编码和MQ-Wavelet transform code, is a better test vectors, including the bit plane coding and MQ
-
-
0下载:
waveletsMathematical methods applied in the most recent image formats are
presented. First of all, the application of the wavelet transform in JPEG2000
is gone through. JPEG2000 is a standard established by the same group
which created the wide
-
-
0下载:
采用VC语言,利用小波变换算法实现对JPEG2000格式图象的压缩和编码-Using wavelet transform algorithm for compressing JPEG 2000 format image.
-
-
0下载:
To recover the original image losslessly, reversible wavelet transform should be used. Hence we employ the
integer wavelet transformation which maps integer to integer and can reconstruct the original signal without
any distortion. Although var
-
-
0下载:
小波变换域图像水印算法是一种对图像多尺度的空间频率分解[13],能更好地与人类视觉系统(HVS Human Visual System)相匹配。由于小波变换具有良好的时频局部性和多分辨率表示的特点,而且,当前最新的图像压缩标准——JPEG2000 和视频的MPEG-7 压缩标准都采用了小波变换,-The wavelet transform domain image watermarking algorithm is a multi-scale image of the spatial frequ
-
-
0下载:
jpeg2000图像压缩源代码,使用小波变换-the jpeg2000 image compression source code, using wavelet transform
-
-
2下载:
这是一个使用matlab写的JPEG2000的代码,它使用了小波变换的方法,消除了JPEG方法所导致的马赛克现象-This is a use of JPEG2000 to write the matlab code, which uses the wavelet transform method, eliminating the JPEG method caused by the mosaic phenomenon
-