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Blocks
clc
close all
clear all
I=imread( desert.jpg )
[r c]=size(I)
bs=16 Block Size (8x8)
nob=(r/bs)*(c/bs) Total number of 8x8 Blocks
Dividing the image into 8x8 Blocks
kk=0
for i=1:(r/bs)
for j=1:(c/bs)
Block(:,:,kk+j)=I((bs*(i-1)+1:bs*(i-1)+bs),(bs*(j-1)+1:bs*(j-1)+bs))
end
kk=kk+(r/bs)
end
Accessing individual Blocks
figure imshow(Block(:,9,1)) This shows u the fist 8x8 Block in a figure window
figure imshow(Block(:,:,2))
- 2013-03-17 15:01:05下载
- 积分：1
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lunhide
用MATLAB程序，实现了在空域下，对图片的亮度值写入秘密信息的程序，很有参考价值(With the MATLAB program, implemented in the airspace, the brightness value of the picture written procedures for confidential information)
- 2010-07-20 01:32:31下载
- 积分：1
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binary1
本文件将普通RGB图像转化成二值图像，方便后续处理(This document will be an ordinary RGB image into binary image, to facilitate follow-up treatment)
- 2011-09-23 14:26:30下载
- 积分：1
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EMD
本程序是用经验模态分解(EMD)算法检测VF信号的，该算法的灵敏度和特异性都达到了90 以上。(This procedure is used empirical mode decomposition (EMD) algorithm to detect VF signals, the sensitivity and specificity of the algorithm has reached more than 90 .)
- 2013-08-22 11:42:47下载
- 积分：1
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Helicopter-battle_source-code
BATTLE OF HELICOPTERS
- 2014-02-23 08:34:16下载
- 积分：1
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fft
说明： 快速离散傅立叶变换，实现8点的蝶形图matlab算法(Fast Discrete Fourier Transform to achieve 8:00 of the butterfly graph algorithm matlab)
- 2008-11-22 10:53:38下载
- 积分：1
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hermite_pulses
Hermite脉冲时域和频域波形。可完全独立运行。(Hermite pulse time domain and f domain)
- 2013-01-10 13:51:17下载
- 积分：1
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MATLAB
自己初学matlab，编写的一些小程序，希望对初学者有帮助。(Their novice matlab, small programs written in the hope that helpful for beginners.)
- 2011-08-08 22:06:18下载
- 积分：1
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FIR_IIR
关于Digital Signal Process中FIR ， IIR滤波器的设计与实现(on Digital Signal Process FIR. IIR Filter Design and Implementation)
- 2007-01-04 02:36:31下载
- 积分：1
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SVM-matlab
关于支持向量机（SVM）的实现程序，很好的代码，希望对需要者有帮助。(the code about SVM.It will be helpfull for uers.)
- 2013-03-27 20:23:59下载
- 积分：1
