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利用de Boor算法绘制B样条曲线
运用计算机图形学的知识，采用4阶B样条基函数，节点向量取为[0,0,0,0,1/4,2/4,3/4,1,1,1,1]
先绘制控制多边形，再用分段直线段绘制B样条曲线(Using the knowledge of computer graphics, the 4 order B spline basis function is used, and the node vector is taken as [0,0,0,0,1/4,2/4,3/4,1,1,1,1].
First, draw the control polygon and draw the B spline curve by piecewise straight line segments.)
- 2018-06-09 15:17:01下载
- 积分：1
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beziercurve
Bezier curve creation and plotting with fortran, greek .docs
- 2009-12-02 07:38:59下载
- 积分：1
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S-UNIWARD_matlab
对图像的隐写术，进行信息隐藏，版权保护。(Steganography is used to hide information and copyright protection.)
- 2021-03-21 15:09:17下载
- 积分：1
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jQueryUploadifyDemo
他很反感；归属地分块地方好法国号法国号韩国胡富国(He was disgusted attribution to block a good place to Hu Fuguo French horn French horn Korea)
- 2013-11-02 11:16:46下载
- 积分：1
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rotate
matlab彩色图像任意旋转的函数 黑白图像旋转后需要补点(matlab color images of arbitrary spin rotation function of black and white images make up points after)
- 2008-05-10 02:31:46下载
- 积分：1
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image_processing
图像处理入门编程
包括动态跟踪和视频处理
有对应的任务指导书(image processing
include the mission book)
- 2018-03-29 00:52:33下载
- 积分：1
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DCT_watermark
说明： dct域的图像数字水印，将水印图像信息隐藏在DCT系数的中频部分。(DCT domain image watermarking, the watermark image information hidden in the intermediate frequency part of DCT coefficients.)
- 2021-02-22 17:29:41下载
- 积分：1
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otsu
说明： 一维自适应阈值分割大津法的源程序是用matlab写的(One-dimensional Otsu adaptive threshold segmentation method source code is written in matlab)
- 2009-08-25 10:06:58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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spectral drawing
说明： MATLAB光谱图绘制，能够画出可见光波长下的光谱图(Matlab spectrum drawing, can draw the spectrum under the visible light wavelength)
- 2020-02-22 18:34:23下载
- 积分：1
