Could you please help me to count the number of boats on this picture ?

   img = imread('C:\Users\TOSHIBA1\Desktop\Ry.jpg') ;
   thresh_range   = 15 ;
   thresh_noBlack = 70 ;
   thresh_noWhite = 200 ;
   rgb_mean  = mean(img, 3) ;
   rgb_range = range(img, 3) ;
   id = rgb_range < thresh_range & ...
        rgb_mean  > thresh_noBlack & ...
        rgb_mean  < thresh_noWhite ;
   r = img(:,:,1) ; g = img(:,:,2) ; b = img(:,:,3) ;
   r(id) = 0 ; g(id) = 0 ; b(id) = 255 ;
   img_windshields = cat(3, r, g, b) ;
   subplot(2, 1, 1) ;
   imshow(img) ;
   subplot(2, 1, 2) ;
   imshow(img_windshields) ;

Answer 1

[Image Analyst]

My Image Segmentation Tutorial will show you how to measure objects in an image and count them and find other measurements. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

Also, you can read this: http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup

Also, you forgot to attach your image.

[John D'Errico]

Since no image was attached, obviously there are no boats. Easy to count. :)