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From: chirag on 2 Apr 2010 11:23
I am having a problem in my project on iris detection .My project
finds the centroid of pupil and its boundary with iris as well as the
edge of iris but i am having problems on how to extract the iris from
the image of the eye. It is showing errors :-

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

Error in ==> linspace at 22
y = [d1+(0:n-2)*(d2-d1)/(floor(n)-1) d2];

Error in ==> irisbasis at 27
copyv = linspace(rs,re,NCOLS);

Error in ==> Main at 14

if anyone can help i will be very thankful to you.
From: us on 2 Apr 2010 11:32
chirag <cchirag88(a)gmail.com> wrote in message <d1da42e3-b7bd-46d6-82ed-f31355220e4d(a)q16g2000yqq.googlegroups.com>...
> I am having a problem in my project on iris detection .My project
> finds the centroid of pupil and its boundary with iris as well as the
> edge of iris but i am having problems on how to extract the iris from
> the image of the eye. It is showing errors :-
>
> ??? Error using ==> mtimes
> Inner matrix dimensions must agree.
>
> Error in ==> linspace at 22
> y = [d1+(0:n-2)*(d2-d1)/(floor(n)-1) d2];
>
> Error in ==> irisbasis at 27
> copyv = linspace(rs,re,NCOLS);
>
> Error in ==> Main at 14
>
> if anyone can help i will be very thankful to you.

given the sparse information, a wild guess...

% this
y=[d1+(0:n-2)*(d2-d1)/(floor(n)-1) d2];
% shoudl probably read
y=[d1+(0:n-2).*(d2-d1)/(floor(n)-1) d2];

us
From: Steven Lord on 2 Apr 2010 13:03

"us " <us(a)neurol.unizh.ch> wrote in message
news:hp52m4$qbs$1(a)fred.mathworks.com...
> chirag <cchirag88(a)gmail.com> wrote in message
> <d1da42e3-b7bd-46d6-82ed-f31355220e4d(a)q16g2000yqq.googlegroups.com>...
>> I am having a problem in my project on iris detection .My project
>> finds the centroid of pupil and its boundary with iris as well as the
>> edge of iris but i am having problems on how to extract the iris from
>> the image of the eye. It is showing errors :-
>>
>> ??? Error using ==> mtimes
>> Inner matrix dimensions must agree.
>>
>> Error in ==> linspace at 22
>> y = [d1+(0:n-2)*(d2-d1)/(floor(n)-1) d2];
>>
>> Error in ==> irisbasis at 27
>> copyv = linspace(rs,re,NCOLS);
>>
>> Error in ==> Main at 14
>>
>> if anyone can help i will be very thankful to you.
>
> given the sparse information, a wild guess...
>
> % this
> y=[d1+(0:n-2)*(d2-d1)/(floor(n)-1) d2];
> % shoudl probably read
> y=[d1+(0:n-2).*(d2-d1)/(floor(n)-1) d2];

What the OP should do, rather than changing the LINSPACE function, is to
call LINSPACE with two or three scalar values -- first value, end value, and
(optionally) number of points to generate -- rather than nonscalar values
for any of those three inputs, as I suspect they're doing.

--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ


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