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小波变换的图像压缩 jpeg2000_matlab
JPEG 2000是基于小波变换的图像压缩标准,由Joint Photographic Experts Group组织创建和维护。JPEG 2000通常被认为是未来取代JPEG(基于离散余弦变换)的下一代图像压缩标准。JPEG 2000文件的副档名通常为.jp2,MIME类型是image/jp2。 JPEG 2000的压缩比更高,而且不会产生原先的基于离散余弦变换的JPEG标准产生的块状模糊瑕疵。JPEG 2000同时支持有损数据压缩和无损数据压缩。另外,JPEG 2000也支持更复杂的渐进式显示和下载。 JPEG 2000是国际标准化组织(ISO)发布的标准,文档代码为ISO/IEC 15444-1:2000。虽然JPEG 2000在技术上有一定的优势,但是到目前为止(2006年),互联网上采用JPEG 2000技术制作的图像文件数量仍然很少,并且大多数的浏览器仍然不支持JPEG 2000图像文件的显示。但是,由于JPEG 2000在无损压缩下仍然能有比较好的压缩率,所以JPEG 2000在图像品质要求比较高的医学图像的分析和处理中已经有了一定程度的广泛应用。
(JPEG 2000 is based on wavelet transform the image compression standard, by Joint Photographic Experts Group organization to create and maintain. JPEG 2000 is often thought to be the future replace JPEG (based on the discrete cosine transform) is the next generation of image compression standard. The file JPEG 2000 vice file name is usually. Jp2, MIME type is image/jp2. JPEG 2000 compression ratio are higher, but won t produce the original based on discrete cosine transform JPEG standard of produce massive fuzzy flaws. JPEG 2000 also detrimental to support data compression and nondestructive data compression. In addition, JPEG 2000 also support more complex gradual display and download. JPEG 2000 is international organization for standardization (ISO) issued the standard, the document code for ISO/IEC 15444-1:2000. Although JPEG 2000 on the technology has certain advantages, but so far (2006), the Internet using JPEG 2000 technical production image file number still few, and most )
- 2012-05-25 21:57:11下载
- 积分:1
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EOF
数据EOF分析,海洋气象常用。将长时间,多空间点数据分解成时间序列和空间序列。进行数据的时空分析。(Used for EOF analyse)
- 2013-07-11 15:14:16下载
- 积分:1
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rsbch
用matlab对RS 码实现从GF域到数域,matlab产生的RS码是在GF域里面,对其进行译码会用到转到数域(realize galois field to number field for RS code)
- 2013-02-25 10:46:13下载
- 积分:1
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Binary-particle-swarm-source
本文给出了二进制粒子群算法的源程序,并运用实例进行了验证。(In this paper, the source code of the binary particle swarm algorithm is given and verified by an example.)
- 2017-04-16 23:36:27下载
- 积分:1
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CCA
说明: 典型关联分析(Canonical Correlation Analysis,以下简称CCA)是最常用的挖掘数据关联关系的算法之一。(Canonical Association Analysis (CCA) is one of the most commonly used algorithms for mining data association.)
- 2019-03-01 14:40:14下载
- 积分:1
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studyforrecognitionofinfraredimagebasedonfeaturein
:给出了一种提取特征点的新方法和合理的特征不变量。该方法根据三角不等式原理利用第三边与另
外两边之和的比值大小来确定角点,以特征点和它相邻的两个特征点所形成的两条直线的夹角正切值以及三角形
第三边与另两边和的比值作为特征不变量。这种特征提取的方法简单,并且由于扩大了模板取值范围,使识别效果受特征点漏检的影响较小。实验表明,该方法不仅简便,而且效果良好。(: In this paper, a new feature point extraction method and the characteristics of rational invariants. The method is based on the principle of triangle inequality with the use of the third side and both sides of the ratio of the size to determine the Corner to feature point and its two adjacent feature points formed by the angle between two tangent linear and the third triangle on both sides and edges with another feature of the ratio as a variable. This feature extraction method is simple, and as a result of the expansion of the scope of the template values to identify the effect of feature points by the impact of smaller undetected. Experiments show that the method is not only simple, but effective.)
- 2009-04-20 18:31:53下载
- 积分:1
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zhijiepaixu
对数据进行直接排序,通过matlab算法实现,对任意大小的数组进行从小到大的排序(Direct to sort the data, through the realization of MATLAB algoDirect to sort the data, through the realization of MATLAB algorithm, an array of any size small to large sortingrithm, an array of any size small to large sorting)
- 2015-03-17 10:48:45下载
- 积分:1
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ieee33
IEEE33节点配电网matlab算例源代码。含数据和注解。可以更改数据。(Source distribution power flow calculation can be run directly, you can modify the input data)
- 2016-05-30 20:38:26下载
- 积分:1
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4
说明: 机载气象雷达地物杂波抑制算法的研究:包括复系数滤波器,频域滤波器,DPCA技术与空时二维自适应处理(Airborne weather radar ground clutter suppression algorithm: include complex coefficient filter, frequency domain filters, DPCA technology and space-time adaptive processing)
- 2010-08-22 10:30:16下载
- 积分:1
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Optimization
matlab遗传算法的一个例子,希望对大家能有所帮助,结构力学方面的。(An example of GA algorithm using matlab.)
- 2010-11-19 15:05:58下载
- 积分:1