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lwt

于 2021-04-21 发布 文件大小:2KB
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下载积分: 1 下载次数: 312

代码说明:

  用matlab编写的提升小波算法,应用于图像处理,很好用(Matlab prepared using lifting wavelet algorithm used in image processing, very good use)

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lwt.txt

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  • wnn_forcast
    用小波神经网络变换对时间序列信号进行预测,并做了测试,效果很好,请参考(Transform using wavelet neural network to predict the time series signal, and do a test with good results, please refer to)
    2009-09-24 17:41:18下载
    积分:1
  • untitled
    数字基带传输基带信号,指未经调制的信号。这些信号的特征是其频谱从零频或很低频率开始,占据较宽的频带。 基带信号在传输前,必须经过一些处理或者某些变换(如码型变换、波形和频谱变换)才能送入信道中传输。处理或变换的目的是使信号的特性与信道的传输特性相匹配。 数字基带信号是消息代码的波形表示。表示形式有多种,有单极性、双极性波形,归零和非归零波形,差分波形、多电平波形之分,各自有不同的特点。 研究数字基带信号通过加性高斯白噪声信道的传输,并且假设信道除了叠加高斯噪声外,不会对信号产生其他失真。(matlabSimulation(pulse amplitude modulation) modulation signal in AWGN (additive white Gaussian noise AWGN (Additive White Gaussian Noise)) under the channel bit error rate and bit error rate performance, and compared with the theoretical value.)
    2018-05-08 18:47:36下载
    积分:1
  • 3
    说明:  故障行波波头识别:模极大值原理识别故障行波波头(Modulus maxima principles identified wave head)
    2013-09-23 11:35:05下载
    积分:1
  • denoise_image_with_two_methods
    分别用小波、分形的方法对图像进行去噪,并对这两种方法的结果进行了比较。(Wavelet, respectively, the method of fractal image denoising, and the results of these two methods are compared.)
    2008-05-17 09:07:43下载
    积分:1
  • tuxiangshuyan
    说明:  基于dct系数的数字水印算法实现,在matlab环境中实现(coefficient based on digital watermarking algorithm in Matlab environment to achieve)
    2006-05-07 16:41:59下载
    积分:1
  • chengxu
    基于小波变换的异步电机的故障诊断,本文采用三层小波包分析,诊断效果较好(Wavelet-based fault diagnosis of induction motors, this paper, three wavelet packet analysis, diagnosis, better)
    2011-05-29 09:44:55下载
    积分:1
  • 图像一次压缩
    此程序能实现基于小波变换的一次图像压缩。(the program can implement once image compressiom by wavelet-based transform )
    2005-09-01 23:00:24下载
    积分:1
  • wnn
    说明:   这是一个用小波神经网络进行非线性函数逼近的例子,拟合效果非常好,保证能运行!有详细注释!我是参考《青岛海洋大学学报》 2001年第1期 一种基于BP算法学习的小波神经网络编写的,大家可以针对原文更好的理解我的程序!(This is a wavelet neural network with nonlinear function approximation example of fitting results is very good, guaranteed to run! Detailed Notes! I refer to Journal of Ocean University of Qingdao,2001 ,“a learning algorithm based on BP wavelet neural network ”, you will understand me better for program!)
    2010-03-18 22:13:54下载
    积分:1
  • 50
    说明:  多媒体技术的发展和视觉信息的飞速膨胀迫切需要对视觉信息资源的有效管理和检索。由此,基于内容的图像和视频检索技术得到了越来越多的重视,成为了多媒体信息检索和图像处理领域中的重要研究方向。CBIR技术将对大规模图像信息的管理和访问提供有力支持。 本文这种介绍了内容图像检索的灰度特征实现方法,具有理论意义和实际应用价值。针对基于内容图像检索技术进行了研究,介绍了其研究现状和关键技术,讨论了其技术瓶颈和发展趋势。共生矩阵法,是对图像的所有像元进行统计调查,以便描述其灰度分布的一种方法。分析了这种基于广义图像灰度共生矩阵的图像检索方法,该方法首先将原图像作平滑处理得到平滑图像,然后将原图像和平滑图像组合得到广义图像灰度共生矩阵,提取该矩阵的统计特征量,最后将该统计量组成归一化向量用以检索。 实验结果表明,本方法的效果要优于单纯的灰度共生矩阵法。在对相似图像检索时,该算法与基于共生矩阵的经典算法相当,在面临同一图像大小显著改变或发生旋转的情况下,该算法明显优于经典算法。相比较而言,该算法提高了检索的有效性。 (The development of multimedia technology and the expansion of visual information,which cries for the effective management and retrieval methods of visual information. Thus, the image and video searching technology based on content is gaining more and more attention to become a multimedia information retrieval and image processing in the field of important research direction. The technology of CBIR provides effective supports for the management and access of extensive image information. This paper introduced the content of the image retrieval method characteristics of gray, with theoretical and practical value. This paper does an extensive and in-depth study of technology based on content image retrieval to, presenting their research status and key technologies, discussing its development trends and technological bottlenecks. Co-occurrence matrix of all the pixel image survey has been conducted in order to describe a method of distribution of gray. This paper analyses this broad-based )
    2009-10-21 11:44:54下载
    积分:1
  • fft015
    基于MATLAB的GS算法的高斯光束整形设计(Designof BinaryOptical Element withMATLAB)
    2012-04-12 13:00:37下载
    积分:1
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