functionBBHE2%UNTITLED此处显示有关此函数的摘要% 此处显示详细说明 clc; clearall closeall; I0=imread('E:\图像处理数据\ceshi\ceshi5(0).jpg'); %读入JPG彩色图像文件 ifsize(I0,3)==3 I=rgb2gray(I0); else I=I0; end %figure,imshow(I); %title('灰度图') meanv=floor(mean(I(:))); [m,n]=size(I); %测量图像尺寸参数 pl=zeros(1,meanv); pu=zeros(1,256);%预创建存放灰度出现概率的向量 nl=0; nu=0; fori=1:m forj=1:n ifI(i,j)<meanv pl(I(i,j)+1)=pl(I(i,j)+1) +1; nl=nl+1; &nb