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22464739106a
利用边界追踪法对图像进行轮廓提取,此函数文件得到的是边界点对应位置索引矩阵(Boundary tracking method using the image contour extraction, this function is to get the file location of the boundary points corresponding to the index matrix)
- 2011-11-24 20:41:36下载
- 积分:1
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dct
M=512 原图像长度
N=64
K=8
I=zeros(M,M)
J=zeros(N,N)
BLOCK=zeros(K,K)
显示原图像
I=imread( f:ceshiyuanshitu.bmp )
figure
imshow(I)
xlabel( 原始图像 )
显示水印图像
J=imread( f:ceshilogistic_nuaa64.bmp )
figure
imshow(J)
xlabel( 水印图像 )
嵌入水印
tem=1
for p=1:N
for q=1:N
x=(p-1)*K+1
y=(q-1)*K+1
BLOCK=I(x:x+K-1,y:y+K-1)
BLOCK=dct2(BLOCK)
if J(p,q)==0
a=-1
else
a=1
end
BLOCK(2,1)=BLOCK(2,1)*(1+a*0.01)
BLOCK=idct2(BLOCK)
I(x:x+K-1,y:y+K-1)=BLOCK
end
end
显示嵌入水印后的图像
figure
imshow(I)
xlabel( 嵌入水印后的图像 )
imwrite(I, f:ceshiembedded.bmp )
- 2010-06-13 18:43:39下载
- 积分:1
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ID3
MATLAB 实现ID3算法 (ID3 algorithm in MATLAB)
- 2011-11-29 21:18:18下载
- 积分:1
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Matlab
matlab基础及应用教程,详细介绍了其语言基础,数值符号运算及程序设计。(basic and applied matlab tutorial, detailing the basis of their language, numerical computation and symbolic programming.)
- 2010-07-27 20:33:17下载
- 积分:1
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zhongzhilb
一个比较简单的中值滤波,程序比较短也比较容易懂,matlab编写(a relatively simple median filter, a relatively short procedure is relatively easy to understand, and the preparation of Matlab)
- 2007-04-24 09:12:13下载
- 积分:1
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my_GGD
广义高斯模型参数估计,效果相当不错!
广义高斯模型参数估计,效果相当不错!(general gaussian parameters estimate)
- 2020-12-14 20:59:15下载
- 积分:1
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Signal-Processing
统计与自适应信号处理,国外很好的数字信号处理书籍(Statistical and Adaptive Signal Processing)
- 2015-01-22 21:19:20下载
- 积分:1
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PRI_transformation
pri变换分选算法仿真实现,改进经典PRI变换算法(PRI transformation algorithm)
- 2021-01-18 22:38:44下载
- 积分:1
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c11
自适应滤波和均衡,LMS,RLS,智能天线(Adaptive filtering and equalization, LMS, RLS, smart antennas)
- 2010-07-30 15:04:49下载
- 积分:1
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fir_filter
matlab FIR滤波器产生函数,通过设置参数,形成滤波器系数(FIR filter function)
- 2015-03-16 19:36:39下载
- 积分:1