求纱管颜色直方图的matlab 程序

<span style="font-size:18px;">clc
clear
A=imread('src.jpg');
B=imread('msk.jpg');
[row,column,channel]=size(B);
for ii=1:row
for jj=1:column
if(B(ii,jj)<250)
A(ii,jj,:)=0;
end
end
end
imshow(A(:,:,1))
imshow(A(:,:,2))
imshow(A(:,:,3))
C1=imhist(A(:,:,1),8)
C2=imhist(A(:,:,2),8)
C3=imhist(A(:,:,3),8)</span>