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matrix Dimension Must Agree

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Muhammad Ali Qadar
Muhammad Ali Qadar 2013-3-10
please some suggest me Where I am going wrong, I want to add periodic noise in my Image
if true
tw=imread('twins.tif');
t=rgb2gray(tw);
%Creating Periodic noise
s=size(t);
[x,y]=meshgrid(1:s(1),1:s(2));
p=(sin(x/3+y/5)+1);
t_pn=(im2double(t)+(p/2)/2);
imshow(t),figure,imshow(t_pn);
% code
end
  2 个评论
Walter Roberson
Walter Roberson 2013-3-10
Which line is the problem appearing on?
Muhammad Ali Qadar
Muhammad Ali Qadar 2013-3-10
Error using +
Matrix dimensions must agree.
Error in saltpepper (line 14)
t_pn=(im2double(t)+(p/2)/2);

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采纳的回答

Wayne King
Wayne King 2013-3-10
Without more information about your image size, which you don't provide, it's hard to say, but try transposing the p matrix as I've done below:
tw=imread('twins.tif');
t=rgb2gray(tw);
%Creating Periodic noise
s=size(t);
[x,y]=meshgrid(1:s(1),1:s(2));
p=(sin(x/3+y/5)+1)';
t_pn=(im2double(t)+(p/2)/2);
  3 个评论
显示 1更早的评论
Muhammad Ali Qadar
Muhammad Ali Qadar 2013-3-10
Worked !!!! Thanks a lot, can you Please Tell me how could you figure out this trick.
Wayne King
Wayne King 2013-3-10
Glad it worked, not a trick, I think Walter's comment is instructive here.

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