Can anyone explain from the third line till the end of below code..??

a=imread('kmeans.jpg');
imshow(255-rgb2gray(a));
b=reshape(double(255-rgb2gray(a)),[],1);
[idx,c]=kmeans(b,2,'emptyaction','singleton');
Fin_a=reshape(idx,[size(rgb2gray(a))]);
[ind1, ind2]=find(Fin_a(:,:)==2);
[ind3, ind4]=find(Fin_a(:,:)==1);
figure();
imshow(255-rgb2gray(a));
hold on
if(length(ind1)<length(ind3))
scatter(ind2,ind1,'g');
else
scatter(ind4,ind3,'g');a
end

[Thorsten]

Why don't you just run the code line by line and use doc and read what the functions are doing? And then ask again if you can't figure out particular parts/lines.

Answer 1

[Chris McComb]

The third line from the end contains only the word 'else'. This is typical syntax for the if control structure. In the example, if length(ind1)<length(ind3), the program executes

scatter(ind2,ind1,'g');

However, if length(ind1)<length(ind3) is not true, the program will try to execute:

scatter(ind4,ind3,'g');a

and exit with an error, because the line ends with an 'a' character.

[John D'Errico]

I think the question was asking for an explanation starting from line 3 until the end, not the third line from the end.

[Sombaran Gupta]

yes from the third line till the end.