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[im camp]=imread('C:\Users\dell\Desktop\0\4.bmp');
im1=im(1:556,1:1472);
figure(1);imshow(im1);axis on;

c=mean(im,2);d=(50:556)*1.5/556;
d1=d-0.162;

e=c(50:556);g=e/max(e);
figure(2);plot(d1,g,'k-');

hold on;logp2=polyfit(d1,g,10);logpred2=polyval(logp2,d1);
plot(d1,logpred2,'r-','linewidth',2.0);grid on;axis([0 1.50 0 1])
Çó¸ßÊÖÖ¸µãÃÔ½ò¹ØÓÚÀûÓÃÄâºÏÇúÏßÇóÖµµÃÎÊÌâ¡£[ Last edited by 201220111010 on 2013-10-14 at 21:39 ]
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  • 2013-10-14 10:25:20, 165.77 K

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2Â¥: Originally posted by jerkwin at 2013-10-14 22:35:44
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[/code]
myfun = @(x) polyval(logp2,x)-exp(1);
r=fsolve(myfun,[0], optimset('Display','off'))
[/code]
4Â¥2013-10-15 08:27:52
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