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gaussmix
gmm distribution writer
- 2010-09-01 18:30:05下载
- 积分：1
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Infrared-Image-Enhancement
针对基于小波变换的红外图像增强方法视觉效果不够理想的缺点, 提出了一种基于平稳小波变换和Retinex 的红外图像增强方法, 利用Retinex 增强算法增强图像的视觉效果, 并改善其亮度均匀性。首先, 对红外图像经平稳小波变换后的最大尺度低频子带图像进行多尺度Retine x 增强 然后, 利用贝叶斯萎缩阈值法对高频子带图像进行阈值去噪, 并根据低频子带图像的局部对比度和模糊规则计算高频子带的增益系数, 从而得到增强后的高频子带图像 最后, 由低频子带图像和高频子带图像重构得到增强后的图像。针对大量图像进行了实验和增强效果的定性与定量评价, 并与双向直方图均衡法、二代小波变换法、Curvelet 变换法和多尺度Retinex法作了比较。结果表明, 所提出的方法增强了图像细节, 抑制了噪声, 并明显改善了图像的整体视觉效果。(As infrared image enhancement method based on wavelet transformation has the problem of unperfect visual effect , and Retinex enhancement algorithm can enhance visual effect of the image by improving brightness uniformity , amethod based on stationary wavelet transformation and Retinexis proposed.Firstly , the infrared image is decomposed into high-frequency detail and low-frequency approximation components at various resolutions, and the low frequency subband image of the largest scale is enhanced by multiscale Retinex algorithm.Then, the highfrequency subband images are denoised by Bayesian shrinkage method, and the gain coefficients of high-frequency subbands are available by calculating the local contrast of the enhanced low-frequency subband based on fuzzy rules to get the enhanced high-frequency subband images .Finally, the enhanced image is reconstructed by the low-frequency subband and high-frequency subbands .Experiments with qualitative and quantitative uation are carried ou)
- 2021-04-29 11:58:44下载
- 积分：1
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kaikan_v52
利用自然梯度算法，分数阶傅里叶变换计算方面,可以实现模式识别领域的数据的分类及回归。( Use of natural gradient algorithm, Fractional Fourier transform computing, You can achieve data classification and regression pattern recognition.)
- 2016-10-14 12:59:04下载
- 积分：1
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barcode
说明： 能够把一副由于照相时收的抖动造成的模糊的图像，变清晰，效果很好(Able to receive a shake when the camera due to blurred images, becoming clear, with good results)
- 2011-03-15 15:42:02下载
- 积分：1
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rossler
Simulation of Rossler ODE
- 2014-09-14 11:06:22下载
- 积分：1
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para
船舶参数横摇,参数横摇的3自由度模型，包括垂荡和纵摇作用(Parametric Rolling of ships, the 3 degree of freedom model of parametric rolling, including heave and pitch function
)
- 2020-09-02 16:38:08下载
- 积分：1
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ldlt
在实际计算中，有时为了避免开方运算，或者要分解的矩阵只是对称而不是正定的，这时可以选用适合于一般对称阵的分解式(In the actual calculation, sometimes in order to avoid root operation, or just want to break down the matrix rather than positive definite symmetric, then you can choose suitable for general symmetric matrix factorization)
- 2014-04-02 15:40:27下载
- 积分：1
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matlab实现的C4.5分类决策树算法
说明： C4.5决策树分类算法，用于进行数据分类(Classification algorithm)
- 2019-12-07 19:24:32下载
- 积分：1
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xianxingtiaopin
线性调频，用matlab编写生成FPGA的mif文件(LFM, prepared with the matlab generate FPGA-mif file)
- 2009-10-23 17:12:43下载
- 积分：1
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8QAM
说明： 利用matlab仿真软件，实现8QAM调制。在实现时采用正交调幅的方式,某星座点在I坐标上的投影去调制同相载波的幅度,在Q坐标上的投影去调制正交载波的幅度,然后将2个调幅信号相加就是所需的调相信号。(Use of matlab simulation software to achieve 8QAM modulation. In achieving the adoption of quadrature amplitude modulation means of a constellation in the I coordinates of the projection to the modulation of the amplitude-phase carrier, in the Q coordinates of the projection to the range of carrier orthogonal modulation, and then the sum of two AM signals is the required phase modulation signal.)
- 2008-11-05 10:39:42下载
- 积分：1
