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lvboqqqqqqq
于傅里叶变换的图像加密技术研究
具体是将一幅图像用 fft 变换到频域
在频域中进行加密 我考虑的是通过随机相位来加密的方法，请问用matlab怎样实现
加密后在通过 ifft 得到加密后的图象
(Fourier transform in the image encryption technology to study the details of an image is to use fft transformed to the frequency domain in the frequency domain I consider encryption is through random-phase approach to encryption, Will the use of Matlab how to achieve the adoption of encryption ifft be encrypted images)
- 2006-09-07 20:44:18下载
- 积分：1
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K-Means PCA降维
K-Means算法,不要求建立模型之后对结果进行新的预测，没有相应的标签，只是根据数据的特征对数据进行聚类。主成分分析降维对数据进行可视化操作,对features进行降维.(K-Means algorithm does not require the establishment of the model after the new prediction of the results, there is no corresponding tag, but only on the characteristics of data clustering data. The principal component analysis reduces the dimension, carries on the visualization operation to the data, reduces the dimension to the features.)
- 2017-06-22 22:05:55下载
- 积分：1
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NarrowBand_DLL
基于窄带法编写的水平集函数，要先手动选择初始轮廓。(narrowband_CV model)
- 2012-02-03 18:40:49下载
- 积分：1
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advanced-harmonic-wavelet-packet
自己编的改进谐波小波包实现程序，实现了信号经过谐波小波包变换后幅值不变，适合于机械故障特征提取(The own series improved harmonic wavelet packet achieve signal amplitude unchanged after harmonic wavelet packet transform, for mechanical fault feature extraction)
- 2020-07-02 09:00:01下载
- 积分：1
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Kriging
说明： 克里金插值（Kriging）在MATLAB中的实现（克里金工具箱）(Implementation of Kriging interpolation (Kriging) in MATLAB (Kriging toolbox))
- 2020-06-08 19:03:48下载
- 积分：1
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FuzzyMath
说明： 用PALKING模糊方法进行边缘检测，还有3个自适应改进方法(PALKING fuzzy method with edge detection, there are three adaptive Improvement)
- 2011-03-07 20:20:21下载
- 积分：1
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Minnimum-error-thresholding
作者:J.Kittler and J.Illingworth
KI阈值算法(Author：J.Kittler and J.Illingworth
1986)
- 2011-06-17 21:36:12下载
- 积分：1
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ImageWarping实验报告
用matlab实现图像变形的实验实例，采用idw 和 rbf 算法(imagewarping using idw&rbf algorithms in matlab)
- 2017-08-01 15:48:28下载
- 积分：1
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bitMAP_read&save
说明： bitMAP文件格式的图像的读取、与保存的算法，可以作为图像处理的系统的前道，非常实用。(bitMAP file format of the image read, and preservation of the algorithm, as image processing system of the former Road, very practical.)
- 2006-05-04 20:04:28下载
- 积分：1
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ezw_fyytt
此程序为用于jpeg2000中的小波零树压缩编码，它采用了小波零树编码原理，利用了小波系数之间的关系(this procedure for the jpeg2000 EZW coding, It uses wavelet zerotree coding theory, the use of wavelet coefficients of the relationship between)
- 2006-12-11 10:02:03下载
- 积分：1
