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Description: 双线性插值（Bilinear Interpolation）-Bilinear interpolation (Bilinear Interpolation)
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Size: 36864 |
Author: tsai |
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Description: 先采集一单声道音频信号（.wav）并用WAVREAD文件采样读取，并对其进行频谱分析。分别用窗函数法和双线性变换法设计低通、高通、带通三种FIR滤波器和IIR滤波器。用M文件使信号通过滤波器并对输出信号进行时域和频域分析。-First acquisition of a mono audio signal (. Wav) files with sampling WAVREAD read, and their spectral analysis. Window function, respectively and the design of bilinear transform low-pass, high pass, band-pass FIR filters and IIR three filters. M document with the signal through the filter and the output signal in time domain and frequency domain analysis.
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Size: 197632 |
Author: 宋立泉 |
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Description: a matlab code for bilinear zooming. by: d m
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Size: 1024 |
Author: davood |
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Description: 老外编的的程序，可以成功运行，推荐下载学习-mosaic.m Code Description
The mosaic.m script operates as follows:
First, it converts the values of the images from unsigned int to double. This is done because most of the MATLAB operations use double as default type. Then, it asks for the points to be matched. Once it has this information it performs a transformation based on an estimate. The value of each pixel is then chosen using a bilinear interpolation. Finally, the mosaicked image is displayed.
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Size: 74752 |
Author: jiajia |
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Description: 电子稳像的实时鲁棒性算法，首先对采集到的每帧图像建立高斯金字塔。然后在高斯金字塔的顶层进行
初估计，采用图像块法得到整像素的运动估计矢量。精估计采用光流梯度法。为提高鲁棒性，运用简化的M 收敛法
进行梯度约束。最后阶段采用双线性内插对当前帧与参考帧进行匹准-Electronic image stabilization, real-time robust algorithm, first collected in the establishment of Gaussian pyramid for each frame. And then carry out the early top-level Gaussian pyramid is estimated to be using the whole-pixel image block method of motion estimation vector. Precision is estimated using optical flow gradient method. To improve robustness, the use of M-convergence method to simplify constraint gradient. The final stage of using a bilinear interpolation on the current frame and reference frame bolts of quasi-
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Size: 940032 |
Author: 才鸟 |
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Description: Matlab代码用Bilinear Transformation方法实现低通，带通，高通，带阻滤波器设计。-Using MATLAB m-file to design LP, BP, HP, BS fitlers by Bilinear Transformation method.
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Size: 3072 |
Author: wstclyq |
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Description: bicubic.m bilinear.m nearest.m多媒体实验m文件 用matlab软件实现-bicubic.m bilinear.m nearest.m
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Size: 1024 |
Author: huangyiyi |
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Description: clear all
I=imread( lena.bmp )
figure imshow(I)
I2=imrotate(I,-4, bilinear ) 逆时针旋转4度
figure imshow(I2)
I3=fliplr(I) 垂直镜像
figure imshow(I3)
I4=imresize(I,0.5, bilinear ) 缩小为原图的1/2
figure imshow(I4)
A=double(I) 转换为double类型
计算7个不变矩
[nc,nr]=size(A)
[x,y]=meshgrid(1:nr,1:nc) 得到网格
x=x(:)
y=y(:)
A=A(:)
m.m00=sum(A)
if m.m00==0
m.m00=eps
end
m.m10=sum(x.*A)
m.m01=sum(y.*A)
计算均值
xmean=m.m10/m.m00
ymean=m.m01/m.m00
计算中心矩-li9_23.rar
cm.cm00=m.m00
cm.cm02=(sum((y-ymean).^2.*A))/(m.m00^2)
cm.cm03=(sum((y-ymean).^3.*A))/(m.m00^2.5)
cm.cm11=(sum((x-xmean).*(y-ymean).*A))/(m.m00^2)
cm.cm12=(sum((x-xmean).*(y-ymean).^2.*A))/(m.m00^2.5)
cm.cm20=(sum((x-xmean).^2.*A))/(m.m00^2)
cm.cm21=(sum((x-xmean).^2.*(y-ymean).*A))/(m.m00^2.5)
cm.cm30=(sum((x-xmean).^3.*A))/(m.m00^2.5)
im(1)=cm.cm20+cm.cm02
im(2)=(cm.cm20-cm.cm02)^2+4*cm.cm11^2
im(3)=(cm.cm30-3*cm.cm12)^2+(3*cm.cm21-cm.cm03)^2
im(4)=(cm.cm30+cm.cm12)^2+(cm.cm21+cm.cm03)^2
im(5)=(cm.cm30-3*cm.cm12)*(cm.cm30+cm.cm12)...
*((cm.cm30+cm.cm12)^2-3*(cm.cm21+cm.cm03)^2)...
+(3*cm.cm21-cm.cm03)*(cm.cm21+cm.cm03)...
+(3*(cm.cm30+cm.cm12)^2-(cm.cm21+cm.cm03)^2)
im(6)=(cm.cm20-cm.cm02)*((cm.cm30+cm.cm12)^2-(cm.cm21+cm.cm03)^2)...
+4*cm.cm11*(cm.cm30+cm.cm12)*(cm.cm21+cm.cm03)
im(7)=(3*cm.cm21-cm.cm03)*(cm.cm30+cm.cm12)...
*((cm.cm30+cm.cm12)^2-3*(cm.cm21+cm.cm03)^2)...
+(3*cm.cm12-cm.cm30)*(cm.cm21+cm.cm03)...
*(
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Size: 1024 |
Author: lzp_llz |
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Description: 利用双线性变换法，设计一个0.4dB截止频率为10kHz且在30kHz处有最小阻带衰减为50dB的数字巴特沃兹低通滤波器，其抽样率为100kHz。利用教材（4.35）式求解原型模拟滤波器的阶数，并利用Matlab的M文件buttap设计模拟原型滤波器。用M文件bilinear将模拟滤波器传输函数变换成期望的数字传输函数。请用Matlab画出其增益和相位响应，并给出设计的具体步骤。-fuck!!!
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Size: 4096 |
Author: Leo |
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Description: BBABssemble(K,k,i,j,m,n)根据单元结点信(i,j,m,n)将单刚阵定位到总刚阵中。-This function assembles the element
stiffness matrix k of the bilinear
quadrilateral element with nodes i, j,
m, and n into the global stiffness
matrix K.
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Size: 1024 |
Author: 王平 |
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Description: 最近邻降采样程序见 ZuiJinLinJiangCaiYang.m，结果见最近邻降采样.jpg。
双线性降采样程序见 ShuangXianXingJiangCaiYang.m，结果见双线性降采样.jpg。
最近邻恢复程序见 ZuiJinLinHuiFu.m，结果见最近邻恢复.jpg。
双线性恢复程序见 ShuangXianXingHuiFu.m，结果见双线性恢复.jpg。-Nearest-neighbor down-sampling procedures see ZuiJinLinJiangCaiYang.m, see the results of nearest-neighbor down-sampling. Jpg. Bilinear down-sampling procedures see ShuangXianXingJiangCaiYang.m, see the results of bilinear downsampling. Jpg. Nearest neighbor recovery procedures, see ZuiJinLinHuiFu.m, see the results of nearest neighbor recovery. Jpg. Bilinear recovery procedures, see ShuangXianXingHuiFu.m, see the results of bilinear recovery. Jpg.
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Size: 4130816 |
Author: 王子剑 |
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Description: 用matlab编写逆投影变换程序，三个m文件分别代表最近邻插值法，双线性插值法，立方卷积插值法，通俗易懂，含有测试图片，打开就能用-Inverse projection transformation program, matlab prepared three m documents represent the nearest neighbor interpolation, the bilinear interpolation and cubic convolution interpolation method, easy to understand, contain a test image, open the can
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Size: 13680640 |
Author: 李雪松 |
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Description: 使用双线性插值的图像旋转，和本站的其余旋转不同，我的旋转不会使图像缺角，好处就是旋转后他的傅里叶变换的频域图也旋转同样的角度，同样可以用来处理矩阵，来做滤波器，我在做方向滤波器，有兴趣要的可以m我。-Using bilinear interpolation, image rotation, and the rest of the rotation is the rotation does not make the image Cutaway, the advantage is that the rotation after his Fourier transform frequency domain also rotates the same angle, can also be used to handle the matrix, do the filter, I was doing directional filter, interested to m.
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Size: 1024 |
Author: 陈雨露 |
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Description: 图像缩放中最常用的双线性插值算法，效果很好-The most commonly used image scaling bilinear interpolation algorithm works well
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Size: 1024 |
Author: 朱昴 |
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Description: An implementation of a Nonlinear Bilinear Filter
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Size: 2048 |
Author: fabridame |
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Description: For fast image processing this script extracts all the parameters for stereo image rectification in order to get the largest rectangular image pairs with only valid pixel values. The parameters are sorted in the way images are read in (First pixels of first row, then pixels of 2nd row etc.). Furthermore the precision for the bilinear transformation can be reduced to 8, 16, 32 or nearest neighbor in order to save calculation efforts. The effect of precision reduction are evaluated with Double_versus_uint.m .
Requirements:
This script works only in conjunction with the Camera Calibration Toolbox for Matlab from Jean-Yves Bouguet:
http://www.vision.caltech.edu/bouguetj/calib_doc/
Also required is the modified file FindLargestRectanglesPUS.m (original from Jaroslaw Tuszynski, see
http://www.mathworks.com/matlabcentral/fileexchange/28155-inscribed-rectangle/content/FindLargestRectangles.m)
This files is included in this package. - For fast image processing this script extracts all the parameters for stereo image rectification in order to get the largest rectangular image pairs with only valid pixel values. The parameters are sorted in the way images are read in (First pixels of first row, then pixels of 2nd row etc.). Furthermore the precision for the bilinear transformation can be reduced to 8, 16, 32 or nearest neighbor in order to save calculation efforts. The effect of precision reduction are evaluated with Double_versus_uint.m .
Requirements:
This script works only in conjunction with the Camera Calibration Toolbox for Matlab from Jean-Yves Bouguet:
http://www.vision.caltech.edu/bouguetj/calib_doc/
Also required is the modified file FindLargestRectanglesPUS.m (original from Jaroslaw Tuszynski, see
http://www.mathworks.com/matlabcentral/fileexchange/28155-inscribed-rectangle/content/FindLargestRectangles.m)
This files is included in this package.
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Size: 116736 |
Author: Adilson |
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Description: 利用双线性变换法设计一个级联型的椭圆IIR滤波器，对一段含噪语音信号进行滤波去噪处理并根据滤波前后的波形和频谱分析滤波性能。本课程设计仿真平台为MATLAB7.0，开发工具是M语言编程。首先在Windows下用录音机工具录制一段语音信号，并人为加入一单频噪声，然后对信号进行频谱分析以确定所加噪声频率，并设计滤波器进行滤波去噪处理，最后比较滤波前后的波形和频谱并进行分析。-Bilinear transformation method is used to design a cascade elliptic IIR filter, for a period of noise speech signal filtering denoising processing and according to the waveform and spectrum analysis of filtering performance before and after filtering. This course design simulation platform for the MATLAB7.0, development tools is M language programming. First under Windows tool to record a voice signal, a tape recorder and deliberately added a single frequency noise, and then the signal to determine the added noise frequency spectrum analysis, and design the filter for filtering denoising processing, finally compared before and after the waveform and spectrum of filtering and analyzed.
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Size: 2048 |
Author: su |
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Description: 加权插值算法，包括加权最近邻插值，加权双线性插值，加权双三次插值，直接运行demo.m就可以。-Weighted interpolation algorithm, including weighted nearest neighbor interpolation, bilinear interpolation, weighted weighted double three interpolation, directly run the demo. M.
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Size: 5120 |
Author: zhongyt |
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