Edge edge method MTF
2016-08-23
34 0 0
3.8
Other
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Application background
Absolutely effective ~ with txt document and examples of crossing ~clear image all;All close;I=imread ('F:\\3xx.bmp');%I=rgb2gray (I11);I1=double (I);[m, n]=size (I);A=zeros (1, n);Cii=1: (n-1) *20+1Zz]=size [z (CII)Summ=a;B=zeros (1, m);Yyy=0;Li=1:1:m for figure (1); subplot (2,2,1); hang=I1 (Li,:);% read the image data for each row i=[1:1:n]; plot (I, hang,'r','linewidth', 2);% show the gray distribution of the original each line %set (GCA,'xtick', 0:2:n) on hold; on grid; title ('all levels of edge spread function (interpolation)'); yidao=diff (hang, 1); [dmax; jizhi]=max (ABS (Yidao)); lindian=linspace (jizhi-2, jizhi+2,5); hang1=hang (jizhi-2:jizhi+2); c=polyfit (Lindian, hang1,3); lindian1=jizhi-2:0.01:jizhi+2; d=polyvalmatlab
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