door detection

I am working on how to detect door ,can anyone tellhow to proceed plz,else is there any codes availabe

[Walter Roberson]

duplicate is at http://www.mathworks.com/matlabcentral/answers/26731-detecting-the-corners

Answer 1

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/26731-detecting-the-corners

[kash]

walter am using 2010a ,if i use corner(),i get error

[Walter Roberson]

So why not mention that _there_ instead of posting a new question?

[kash]

Sorry for that walter,can u help me now,detecting the corners of door image and drawing a bounding box

[Walter Roberson]

I answered over there rather than in this duplicate.