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41349
文本变图片源码例程,程序将文本转换到字节集数据,再取出每个字节数值进行计算后画到画板上。(After the text becomes image source routines , the program will convert the text to a set of bytes of data , and then remove each byte value is calculated to draw on the drawing board .)
- 2015-08-30 18:21:17下载
- 积分:1
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能量检测法源代码
能量检测法是一种比较简单的信号检测方法[1], 属于信号的非相干的检测, 直接对时域信号采样值求模,然后平方即可得到;或利用FFT转换到频域,然后对频域信号求模平方也可得到。它无需知道检测信号的任何先验知识,对信号类型也不作限制。
实际上,能量检测是在一定频带范围内作能量积累,如果积累的能量高于一 定的门限,则说明信号的存在;如果低于一定的门限,则说明仅有噪声。能量检 测的出发点是信号加噪声的能量大于噪声的能量。能量检测方法对信号没有作任何假设,是一种盲检算法。
此代码“利用FFT转换到频域,然后对频域信号求模平方”方法来实现对用户的检测。(In fact, energy detection is used for energy accumulation in a certain frequency range. If the accumulated energy is higher than a certain threshold, the existence of the signal is indicated. If the threshold is lower than the threshold, then only noise is indicated. The starting point of energy detection is that the energy of signal plus noise is greater than that of noise. The energy detection method does not make any assumptions about the signal, and it is a blind detection algorithm.
This code "converts the frequency domain into the frequency domain by FFT, then calculates the square of the square of the frequency domain signal" to realize the detection of the user.)
- 2021-04-29 16:18:42下载
- 积分:1
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Semi_fragilewatermarking
内容认证半脆弱水印算法的研究与实现,本程序实现图像的半脆弱水印,是基于DCT的算法,特别适合研究半脆弱水印的同志(Content authentication semi-fragile watermarking algorithm for Research and Implementation of, the procedures for the realization of the semi-fragile watermarking images is based on the DCT algorithm, especially appropriate to study the semi-fragile watermarking comrades)
- 2009-01-21 21:46:51下载
- 积分:1
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图像的二维熵计算
基于MATLAB的图像二维熵的计算,采用了改进的均值滤波器模板,使结果与物理意义更加契合。(This program calculates the 2-dim entropy of images, which is based on MATLAB. It uses a better average filter template, and makes the result in accordance with the identification of entropy.)
- 2020-08-09 15:18:29下载
- 积分:1
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fasta
DNA比对中FASTA算法的简单实现,通过建立查找表、位移表和位移向量表来得出两条序列的最大匹配位移。(DNA matching the FASTA algorithm is simple to achieve, through the establishment of a lookup table, displacement and the displacement vector table to derive maximum matching two sequences displacement.)
- 2021-01-11 11:18:49下载
- 积分:1
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tu_xiang_he_bing
程序进行了两张图片的简单合并,适合对控件的使用进行学习(Procedures carried out two simple merger picture, suitable for the control of the use of learning)
- 2013-11-05 22:32:15下载
- 积分:1
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motiontest1
说明: 运动检测和背景提取,比较适合于入门者学习,有一定的参考价值(Motion detection and background extraction, suitable for beginners to learn the value of some reference)
- 2008-10-18 09:11:37下载
- 积分:1
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compression
EZW图片压缩,利用EZW原理在matlab里面编程实现图片压缩(EZW-compression of picture)
- 2018-01-07 19:43:49下载
- 积分:1
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RegisterandFusion
波变换的图像配准与融合算法的研究,主要描述了图像的各种配准方法和基本的融合方法(Wavelet transform algorithm for image registration and fusion research, will describe a variety of image registration methods, and basic integration methods)
- 2010-03-12 16:14:35下载
- 积分:1
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函数
基于matlab的指纹识别源码 包括预处理、特征点提取和特征点匹配(Fingerprint recognition source code based on MATLAB includes preprocessing, feature extraction and feature matching)
- 2019-04-29 19:39:21下载
- 积分:1