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matlab6.5
《matlab6.5辅助图像处理》源代码()
- 2008-04-03 12:17:08下载
- 积分:1
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aljabar-boole-2-(5)
aljabar bool method to make subtitute
- 2013-11-08 06:36:10下载
- 积分:1
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DCTlicheng
研究表明,构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时,离散
余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵,所以离散余弦变换矩阵与自然图像的
K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角
阵,即除了对角线元素以外,其它很多元素都近似为0,并且在左上角集中了主要能量。这
反映了自然图像大部分区域变化不大,亮度突变只占少数,即图像能量以低频成分为主的特
性。通过变换后的量化,舍弃对视觉效果影响较小的次要信息,可达到进一步的压缩效果。
虽然从去相关性能的意义上讲,DCT是一种次于K一L变换的准最佳变换,但是从算法实现的角度来看,DCT则远远优于K一L变换。首先,当图像的分块大小确定后,DCT的变换矩阵也就随之确定了,不随输入信号的统计特性变化而变化 其次,二维DCT能够分解成两次一维DCT,有利于硬件实现。
(Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete
The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images
Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix
Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this
Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image
Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect.
Although from related to the performance of the sense, DCT is a kind o)
- 2013-11-25 16:00:24下载
- 积分:1
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matlab7
说明: 精通matlab7.0(亨塞尔曼编著),清晰版。《精通Matlab7》全面阐述了Matlab的所有关键特性和功能,提供了精通Matlab所需要的所有方法和手段,通过实例向读者展示如何编写高效的Matlab代码。Matlab作为一个软件工具,版本在不断升级,本书是基于Matlab 7编写的。本书中的大部分素材同样可以用于Matlab 6.x和Matlab 5.x。
Matlab是适合多学科、多种工作平台的功能强大、界面友好且开放性很强的大型优秀应用软件,同时也是国内外高等院校高等数学、数值分析、数字信号处理、自动控制理论以及工程应用等课程的基本教学、实验仿真工具。本书全面阐述了Matlab的所有关键特性和功能,提供了精通Matlab所需要的所有方法和手段,通过实例向读者展示如何编写高效的Matlab代码。 (especially terrific for beginners)
- 2011-03-26 19:03:33下载
- 积分:1
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FM-ModaDEM
fm modulation & demodulation code for matlab
- 2011-10-12 02:01:32下载
- 积分:1
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knnclassification
knn分类器算法(matlab源代码),供大家学习(KNN classifier algorithm (matlab source code) for everyone to learn)
- 2007-10-11 10:02:52下载
- 积分:1
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lvboqi_example
MATLAB程序:滤波器设计,方法很简单,很使用,可与大家共享一下。(MATLAB program:very easy ,very useful)
- 2010-05-13 20:59:59下载
- 积分:1
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matlab
MATLAB,用距量法分析计算带状线的特性阻抗(MATLAB, from the method of calculation of the stripline characteristic impedance)
- 2012-05-31 08:31:32下载
- 积分:1
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clark-and-park
本代码是CLARK和PARK变换的m文件和simulink模型,即从三相坐标变换到两相坐标的变换。(This code is CLARK and the PARK transform of the m file and the Simulink model, namely from the three-phase to two-phase coordinate transformation of coordinate transformation.)
- 2014-09-03 10:55:22下载
- 积分:1
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DLDA_code
人脸识别的经典算法——直接LDA算法的matlab实现,效果很好,还可以计算识别的精确度,实现了剑桥大学orl人脸数据库的人脸识别(The classical LDA algorithm directly face recognition algorithm matlab implementation, the effect is very good, also can calculate the recognition accuracy, the realization of the University of Cambridge ORL face for face recognition)
- 2015-03-16 15:33:52下载
- 积分:1