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1、.........、、...22.1、....1..2..3.2.2....Vol.28No.4Apr.2012JournalofChifengUniversityNaturalScienceEdition28420124116052..、.TP391.41A1673-260X201204-0022-0322--“”.(1)fj,j=0,1,…,L-1(1)(2)nj,j=0,1,…,L-1(2)(3)Pf(fj)=nj/n,j=0,1,…,L-1(3)(4)C(f)=∑kj=0Pf(fj),j=0,1,…,k,…,L-1(4)(5)PINTgi=INT[(gmax-gmin)c(f)+gmin+0.5]i=1,…,P-1(5)(6)ni,i=0,1,…,k,…,P-1(7)pg(gi)=ni/n,i=0,1,…,P-1(6)fjgi.2.3......2.3.1Pr(r)Pz(z).S=T(r)=r0乙Pr(r)dr(7)v=G(z)=r0乙Pz(r)dz(8)z=G-1(v)(9)Ps(s)Pv(v).s(9)v.Z=G-1(S)(10)z.(7)(10)Z=G-1(T(r))(11).Pz(zk)=nkn,0≤zk≤1,k=0,1,2,…,L-1(12)vk=G(zk)=L-1k=0Σpz(zk)(13)zk=G-1(sk)=G-1[T(rk)](14)nnkLPr(rk)K.T(r)Z=G-1(v).2.3.2(1)risi(2)rivi(3)vi=sizi(4)Pz(zi).i.2.4...(1)f(x,y)[a,b]g(x,y)[c,d]23--g(x,y)=(a-c/b-a)[f(x,y)-a]+c(15)(1).8a=d=255b=c=0..L[a,b](16)(17)g(x,y)=c0≤f(x,y)0≤f(x,y)a(d-c/b-a)[f(x,y)-a]+ca≤f(x,y)≤bdbf(x,y)≤≤≤≤≤≤≤≤≤≤≤L(16)g(x,y)=(d-c/b-a)[f(x,y)-a]+ca≤f(x,y)≤bf(x,y)≤(17)(2)..Lg(x,y)=c/a*f(x,y)0≤f(x,y)a(d-c/b-a)[f(x,y)-a]+ca≤f(x,y)b(L-1-d/L-1-b)*[f(x,y)-b+db≤f(x,y)L-≤≤≤≤≤≤≤≤≤≤≤1(18).[a,b]1.a=b,c=0,d=L-1(18)..(3)......3.、..、....———————————————————：〔1〕.MATLAB[M].:，2009.〔2〕.[M].:,1999.〔3〕,,.[M].:，1998.〔4〕.[M].:,2003.〔5〕,.MATLAB[J].,2006(2):54-56.〔6〕.[J].,2004(2):37-38.24--