how to detect shadows in an image

I have an image which is given below

How can i detect the cast shadow by using a bounding box?????? (A rectangular box must be moved throughout the img searching for a shadow and when it detects a shadow,the box must be fixed there@ the shadow)

[ANDREA FORCELLA]

Maybe its correct create a background image that contain only the shadow? I'm trying to do that 'background = imopen(grayImage,se)'; where se=strel('disk',15);

Answer 1

[Walter Roberson]

http://www.mathworks.com/matlabcentral/fileexchange/54647-shadow-detection

http://www.mathworks.com/matlabcentral/fileexchange/36949-moving-shadow-detection/content/shadowDetection.m

http://www.mathworks.com/help/vision/ref/vision.foregrounddetector-class.html

http://www.mathworks.com/matlabcentral/answers/78788-please-help-me-in-providing-mat-lab-code-i-e-how-to-reconstruct-the-shadow-image-shadow-reconstructi#comment_154662

http://www.mathworks.com/matlabcentral/answers/?term=tag%3A%22shadow+detection%22

[ANDREA FORCELLA]

Easy Ctrl C+ Ctrl V. GrEaT JoB!!