Object Recognition and Counting by Logo

I need assistance in developing a code that detects the logo of a candy brand or any brand in general and counts the number of logos being displayed by recognition of that specific logo. There are multiple logos displayed and I need to output a vector that corresponds to the number of each logo, for example: [2 1 5] would be the output so Twix has 2 units, m&m's have 1 unit, etc. I am using the computer vision toolbox in Matlab currently and have adapted the object recognition example Mathworks provides in which I can detect the logos but I do not know how to count them. If anyone can give me guidance on how to do this I would greatly appreciate it. It does not have to be extremely accurate but should be fairly accurate. Image attached is an example photo of items:

http://s796.photobucket.com/user/jehad12/media/RandomItems_zps46142162.jpg.html?sort=3&o=0

[Cady]

If there are easier techniques please provide any help. Thank you very much for assistance.

[Cady]

Any other techniques to doing this? Any help is appreciated.