Question

Hi everyone i need help in matlab

Answer 1

here is description: I'm trying to achieve Shapes detection following is my code
function [] = Object_Rec (I)
Ig = rgb2gray(I);
threshold = graythresh(Ig);
bw = im2bw(Ig,threshold);

bw = bwareaopen(bw,30);
se = strel('disk',2);
bw = imclose(bw,se);
bw = imfill(bw,'holes');

[B,L] = bwboundaries(bw,'noholes');
imshow(label2rgb(L, @jet, [.5 .5 .5]))
hold on
for k = 1:length(B)
boundary = B{k};
plot(boundary(:,2), boundary(:,1), 'w', 'LineWidth', 2)
end

now i need a way to detect square in an image can anyone help me in this regard thanks
cheers :)