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由于第二代Bandelets变换是由量化步长来控制最佳Bandelet化过程,难以实现定码率图像压缩。为了解决这个问题,提
出了一种通过非线性逼近来控制最佳...
由于第二代Bandelets变换是由量化步长来控制最佳Bandelet化过程,难以实现定码率图像压缩。为了解决这个问题,提
出了一种通过非线性逼近来控制最佳Bandelet化过程的方法。同时采用了沿几何流的方向小渡变换方法,直接把JPEG2000的编
解码器应用到Bandelets变换系数上进行有效的图像压缩,而无需重新构造上下文模型。实验表明,提出的压缩方法具有很好的边
缘和纹理保护能力,特别对于直线纹理图像,压缩性能优于JPEG2000标准。-Abstract:Image compression based on the second generadon Bandelets transform,whose optimized bandeletization is controlled
by quantization step,cannot realize fixed bitrate image compression.To overconae this problem。the paper presents a non-linear
approximation method to control the optimized bandeletization.Then,the oriented wavelet transform along geometric flow is adopted.
The JPEG2000 codec is direcdy employed on bandelets coefficients to implement effective image compression without changing
context model.Experiments show that the proposed compression method exceeds JPEG2000 standard in compression performance
and abil畸of image edges and texture preservation.
- 2022-06-22 00:20:04下载
- 积分:1
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在情人节和# 39通过预先规定的头发
前染发前通过提供 情人确认 确认其他人气确认去确认去日前日前人确认-Before Valentine" s hair through the provision of pre-confirmation confirmation confirmation confirmation of other popular recently confirmed to a few days ago
- 2022-08-20 19:35:11下载
- 积分:1
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mysql较详细的参考手册,适合网站程序设计者的基础参考书籍
mysql较详细的参考手册,适合网站程序设计者的基础参考书籍
- 2022-03-09 15:49:24下载
- 积分:1
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linux
linux-bible.rar linux-bible.rar
- 2022-02-04 15:00:18下载
- 积分:1
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mp3编码原理,介绍并分析mp3编码以及解码原理.包括大量图示和例子...
mp3编码原理,介绍并分析mp3编码以及解码原理.包括大量图示和例子-mp3 coding theory, presents and analyzes mp3 encoding and decoding principle. Picture shows including a large number of examples and
- 2022-05-13 04:45:29下载
- 积分:1
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很好的VC进阶书籍,实例众多,适合新手及中级人员学习
很好的VC进阶书籍,实例众多,适合新手及中级人员学习-A good VC advanced books, numerous examples, suitable for novice and intermediate staff to learn
- 2022-02-03 12:43:41下载
- 积分:1
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Visual C++网络通信编程实用案例精选源代码
Visual C++网络通信编程实用案例精选源代码-Visual C++ Network communications programming practical cases the source code Featured
- 2022-03-10 11:53:54下载
- 积分:1
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广告如何
广告如何
- 2022-03-15 22:25:32下载
- 积分:1
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实现如何进行数据导出
实现如何进行数据导出-realize how data derived
- 2022-06-01 15:54:36下载
- 积分:1
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C++经典语法与应用,类的编写与应用,构造与析构函数,函数的重载,类的继承,函数覆盖,基类与派生类的构造函数、析构函数先后调用顺序,如何在派生类构造函数中向基类...
C++经典语法与应用,类的编写与应用,构造与析构函数,函数的重载,类的继承,函数覆盖,基类与派生类的构造函数、析构函数先后调用顺序,如何在派生类构造函数中向基类的构造函数传递参数,this成员变量,类型转换的内幕,虚拟函数与多态性,引用和指针变量的区别与共同处。VC工程的编译原理与过程,将工程中不同的类拆分到不同的文件中,每一个类由一个.h和.cpp文件共同完成,头文件重复定义问题的解决,培养了学员良好的编程习惯,也为以后分析MFC AppWizard生成的工程奠定了良好基础。-classical grammar and C applications, such as preparation of the application structure and destructor function, and the heavy-duty, class inheritance, function coverage, the base class and the derived class constructor and destructor function has the calling sequence, how the derived class constructor function to the base class constructor function transmission parameters, this member variable, Insider type conversion, virtual functions and polymorphism, and the indicators used variables and the differences between common point. VC works compiler theory and the process of engineering Resolution different types of different documents, every one by one category. h and. cpp document completed, the first document to repeat the definition of the solutio
- 2023-01-14 21:20:03下载
- 积分:1