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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
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567575646456 464554654
567575646456 464554654-tryrtu3634
- 2022-03-17 08:47:10下载
- 积分:1
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本文对两大类步态识别算法进行了深入研究,其主要内容集中于步态特征的提取和分类器的设计两部分。...
本文对两大类步态识别算法进行了深入研究,其主要内容集中于步态特征的提取和分类器的设计两部分。-paper on the two categories gait recognition algorithm for in-depth study Its main contents concentrated in the gait characteristics of the extraction and classification of the design of two parts.
- 2022-11-21 06:10:03下载
- 积分:1
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输入密码进入网络的实际应用
输入密码进入WEB的实际应用
- 2022-04-01 04:18:28下载
- 积分:1
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linux的启动过程的详细解释,欢迎下载哦
linux的启动过程的详细解释,欢迎下载哦
-err
- 2022-03-22 01:41:59下载
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flex 是一个生成扫描器的工具,能够识别文本中的词法模式。flex 读入给定的输入文件,如果没有给定文件名的话,则从标准输入读取,从而获得一个关于需要生成的扫...
flex 是一个生成扫描器的工具,能够识别文本中的词法模式。flex 读入给定的输入文件,如果没有给定文件名的话,则从标准输入读取,从而获得一个关于需要生成的扫描器的描述。此描述叫做 规则,由正则表达式和 C 代码对组成。flex 的输出是一个 C 代码文件――lex.yy.c――其中定义了 yylex() 函数。编译输出文件并且和 -lfl 库链接生成一个可执行文件。当运行可执行文件的时候,它分析输入文件,为每一个正则表达式寻找匹配。当发现一个匹配时,它执行与此正则表达式相关的 C 代码-flex generated scanner is a tool that can identify lexical patterns in text. flex time into the given input file, in the absence of a given file name, then read from standard input, and thus on the need to generate a description of the scanner. This description is called the rules, by the regular expression and the composition of C code. the output of flex is a C code file- lex. yy.c-- which defines the yylex () function. Output file and compile and link-lfl library to generate an executable file. When running an executable file, it analyzes the input file, for each regular expression match to find. When they find a match, it is the implementation of regular expressions with the related C code
- 2022-07-16 02:04:28下载
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西南交通大学张翠芳老师〈信号处理原理〉课程的电子教案,习题...
西南交通大学张翠芳老师〈信号处理原理〉课程的电子教案,习题-Southwest Jiaotong University Jiasu teachers "signal processing theory" courses of electronic lesson plans, Exercises
- 2022-04-13 08:49:09下载
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the file describe how to translate code to chip s3c2410 for linux operation syst...
the file describe how to translate code to chip s3c2410 for linux operation system
- 2022-02-20 11:41:02下载
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本软件是图象处理软件,能对图象进行简单的处理,如中值滤波、二值化变换、亮度增减、傅立叶变换、反色、取对数等...
本软件是图象处理软件,能对图象进行简单的处理,如中值滤波、二值化变换、亮度增减、傅立叶变换、反色、取对数等-software is the image processing software, the images can be simple, such as the filter, two values of transformation, Brightness changes, Fourier transform, anti-Israel, and so on, from right
- 2023-04-29 18:35:03下载
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游戏编程一直是一个热门,我相信,这本书能很好的帮助你学习...
游戏编程一直是一个热门,我相信,这本书能很好的帮助你学习-Game programming has been a popular, I believe, this book can help you learn the very good!!!!!!!!!!
- 2022-03-19 02:39:12下载
- 积分:1