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imratio
matlab 压缩率计算函数 用于计算压缩前后图像大小比值(matlab function of compression rate used to calculate the compression ratio before and after the image size)
- 2010-06-05 15:57:35下载
- 积分：1
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ToolBox
matlab图像处理工具相，使用了主成分分析，ANN，SVM等方法。(This toolBox used in the image processing(feature extraction and classification)
PCA,LDA,ICA,DCT,RBF,RBE,GRNN,KNN,minimum distance,SVM, and others)
- 2009-05-01 10:27:28下载
- 积分：1
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lagrange
实现拉格朗日插值，和用拉格朗日插值拟合函数(Lagrange interpolation to achieve, and the fitting function with the Lagrange interpolation)
- 2010-11-09 15:48:14下载
- 积分：1
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matlab
在采样点之间的频率响应是由各采样点的加权内插函数叠加而形成的，因而有一定的逼近误差。该误差大小取决于理想频率响应的形状，理想频响特性变化越平缓，内插值越接近理想值，逼近误差越小；反之，如果采样点之间的理想频响特性变化越陡，则内插值与理想值之间的误差越大，因而在理想滤波器不连续点的两边，就会产生尖峰，而在通带和阻带就会产生波纹。用频率采样法设计的实际滤波器频率响应如图1所示。由图1可知，实际滤波器的阻带衰减取决于内插函数第一旁瓣幅度值的大小，其大小决定了所设计的滤波器的阻带性能。(Interpolation function superimposed between sampling points of the frequency response is weighted within each sampling point and the formation of, and thus have a certain degree of approximation error. The size of this error depends on the shape of the ideal frequency response and the ideal frequency response characteristic change is more gentle, interpolated and more close to the ideal value, the smaller the approximation errors Conversely, if the sampling point between the ideal frequency response characteristics of the steeper the change, and then the interpolated the larger the error between the ideal value, and thus in the ideal filter both sides of the discontinuity point, will produce spikes occurs ripple in the passband and stopband. Actual design frequency sampling filter frequency response is shown in Figure 1. Figure 1 shows, the actual filter stopband attenuation depending on the interpolation value of the size of the first side-lobe amplitude of the function that determin)
- 2013-03-12 13:47:15下载
- 积分：1
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Image-Super-Resolution-Algorithms
前基于图像块稀疏表示的超分辨率重构算法对所有图像块都用同一字典表示，不能反映不同类型图
像块问的筹别．针对这一缺点，本文提出基于图像块分类稀疏表示的方法．该方法先利用图像局部特征将图像块分为
平滑、边缘和不规则结构三种类型，其中边缘块细分为多个方向．然后利用稀疏表示方法对边缘和不规则结构块分别
训练各自对应的低分辨率和-岛分辨率字典．重构时对平滑块利用简单双三次插值方法，边缘和不规则结构块由其对应
的高、低分辨率字典通过正交匹配追踪箅法重构．实验结果表明，与单字典稀疏表示算法相比，本文算法对图像边缘部
分重构质量明显改善，同时醇构速度品著提高．
(Image Super-Resolution AlgorithmsB
ased onS
parse
Representation
of Classified
ImageP
atches
)
- 2014-10-27 10:46:38下载
- 积分：1
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DER
important matlab programing for research
- 2010-07-31 23:01:30下载
- 积分：1
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qnf
一种matlab实现的频率估计函数。matlab代码(A matlab function to achieve the frequency estimation. matlab code)
- 2009-07-20 18:35:49下载
- 积分：1
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GPS-SINS位置组合程序（速度、位置误差曲线）
GPS/INS组合导航定位程序，亲测可用~~~~~(GPS/INS integrated navigation and positioning program, pro test available)
- 2021-03-25 17:19:14下载
- 积分：1
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6546543645
this is a genetic algorithm source code
- 2010-12-30 21:50:58下载
- 积分：1
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Histogram
柱形统计图，能够直接得出图像的灰度直方图。
里面有程序的源代码(Histogram, can directly draw the image histogram.
There are procedures for source code)
- 2012-04-02 22:23:48下载
- 积分：1
