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

1 次查看（过去 30 天）
Sombaran Gupta
Sombaran Gupta 2015-4-13
编辑： Thorsten 2015-4-14
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
  1 个评论
Thorsten
Thorsten 2015-4-14
编辑：Thorsten 2015-4-14
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.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Chris McComb
Chris McComb 2015-4-13
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.

类别

在 Help Center 和 File Exchange 中查找有关 Whos 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by