fix problem for The length of X must match the number of rows of Y. in matlab

Hello, When i using this code , this problem is appered

can you help me

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
im=imread('fig3.tif');         % Read image & store as 'im'
h = rgb2gray(im);
imhist(h,25);
horz=linspace(0,255,25);
stem(horz,h,'fill') ;
axis([0  255  0  60000]) ;
set(gca,'xtick', 0:50:255) ;
set(gca,'ytick',0:20000:60000);

Answer 1

[Walter Roberson]

In

stem(horz,h,'fill') ;

your horz has 25 values, but your h is the result of rgb2gray() and so is an array with the same height and width as your original image.

Perhaps you want something like,

[counts, x] = imhist(h,25);
stem(x, counts, 'fill')

[ibrahim abufeseifes]

Thanks alot Walter Roberson