Fake Currency detection project

Unrecognized function or variable 'A'.

Error in fake2 (line 76)

for n=1 :size(A,1) % i GET THE ERROR IN THIS LINE A IS 'ROI-Extract Texture & Statistical Features

i am attaching my project file... could anyone help me to resolve the error in my code?

Actually I am strugling from long time to remove the error but I couldn't figureout the solution. please help.

Answer 1

[Image Analyst]

Your Avg is 157, hence none of the if statements gets entered and none of your mat files get loaded.

Avg=mean2(Igray);
if(Avg>202 && Avg < 207)
    load 100.mat
elseif(Avg > 175 && Avg<180)
    load 200.mat
elseif(Avg>190 && Avg<195)
    load '500.mat'
elseif(Avg>209 && Avg<214)
    load '2000.mat'
end

I presume (the poorly-named) "A" is in one of those mat files, like we said in your duplicate post. The code and algorithm are really fragile otherwise, but at least you can alert yourself to the problem by changing it to:

Avg=mean2(Igray);
if(Avg>202 && Avg < 207)
    load 100.mat
elseif(Avg > 175 && Avg<180)
    load 200.mat
elseif(Avg>190 && Avg<195)
    load '500.mat'
elseif(Avg>209 && Avg<214)
    load '2000.mat'
else
    % Avg was not in any of those ranges.
    errorMessage = sprintf('Error! Avg = %f\nso none of your MAT files got loaded!', Avg);
    uiwait(errordlg(errorMessage))
    return;
end

[Mohd]

then how can i resolve it?

could you please help?

[Image Analyst]

What was the Avg for the case where it popped up the error? Like 208 or 174 or 214.1 or something? What mat file do you want to use in that case?

[DGM]

I wouldn't expect the average gray value of an arbitrarily-cropped uncalibrated image to be a reliable indicator of the object properties (specifically the denomination of the bill). For the Gandhi new series rupee notes, you could probably get better results if you classify based on color information instead of gray level. That presumes that all your notes come from the same series though.