Error using ==> mtimes Inner matrix dimensions must agree.

Dear Sir,

i get back this:

Error using ==> mtimes
Inner matrix dimensions must agree.
Error in ==> findHomography>calcDist at 22
pts3 = H*[pts1;ones(1,n)];

Error in ==> ransac1 at 52
dist = funcDist(f,x,y);

Error in ==> findHomography at 13
[H corrPtIdx] = ransac1(pts1,pts2,coef,@solveHomo,@calcDist);

Error in ==> newone at 51
[H corrPtIdx] = findHomography(corr_points_1',corr_points_2');

When i run my code! I wish you could help me. SOS This is my code:

I1=imread('TestImages/testc1.png');
I2=imread('TestImages/testc2.png');

Options.upright=true;
Options.tresh=0.0001;

Ipts1=OpenSurf(I1,Options);
PaintSURF(I1, Ipts1);

Ipts2=OpenSurf(I2,Options);
PaintSURF(I2, Ipts2);

Options.verbose=false; 

D1 = reshape([Ipts1.descriptor],64,[]); 
D2 = reshape([Ipts2.descriptor],64,[]); 

err=zeros(1,length(Ipts1));
cor1=1:length(Ipts1); 
cor2=zeros(1,length(Ipts1));

for i=1:length(Ipts1),
      distance=sum((D2-repmat(D1(:,i),[1 length(Ipts2)])).^2,1);
      [err(i),cor2(i)]=min(distance);
end

[err, ind]=sort(err); 
cor1=cor1(ind); 
cor2=cor2(ind);

[cor2,m,n]=unique(cor2);
cor1=cor1(m);

for i=1:length(cor1)
   corr_points_1(i,:)=[Ipts1(cor1(i)).x Ipts1(cor1(i)).y]; 
  corr_points_2(i,:)=[Ipts2(cor2(i)).x Ipts2(cor2(i)).y];
 end

figure, imshow(I1);
figure, imshow(I2);
hold on;

for i=1:length(Ipts1),
    c=rand(1,3);
    plot([Ipts1.x],[Ipts1.y],'O','Color',c)

end 

[H corrPtIdx] = findHomography(corr_points_1',corr_points_2');

Answer 1

[Nirmal]

pts3 = H*[pts1;ones(1,n)];

if you check the size of H and size of [pts1;ones(1,n)], the no. of columns of H and no. of rows of [pts1;ones(1,n)] are not equal. Thats the PROBLEM!

[Vasileios Fotias]

What i have to do to resolve this problem?