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function s=subim(f,4,4,2,2)5 u1 M" T' J' R) N$ ~; @: i
%SUBIM Extracts a subimage,s,from a given image,f.6 h, c1 Q: u7 L
%The subimage is of size m-by-n,and the coordinates- x6 F& j! Z1 [5 p. U2 i. l
%of its top,left corner are(rx,cy)., S# t- z2 h3 m8 x' q6 A0 L# M
s=zeros(m,n);5 E4 U; @" d: Y; \5 T& ?/ w
rowhigh=rx+m-1;$ C* i6 r& S( \1 |" d
colhigh=cy+n-1;
7 ]" R2 {: t* X% ~xcount=0;
, W! d; L) c7 c5 g; zfor r=rx:rowhigh
* s. M. U6 V: wxcount=xcount+1;0 j! Y% Z- d: V# U2 w
ycount=0;" S6 A7 x' i1 }$ j+ `0 ~* F
for c=cy:colhigh
4 M8 u O. h/ z: R0 F* }ycount=ycount+1;0 T6 m. I0 \! }- ~
s(xcount,ycount)=f(r,c);* D/ R$ v Y9 k% Z& U
end
! _0 M; r9 d& }0 f* o' I+ j) O3 iend0 Q7 `7 h; n. m: x: M
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发表于 2019-8-28 17:11
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淘帖
支持！
反对！
楼主