Hi all,

I am trying to implement a project to compare the one image with the images in the database.
 In details a have a database of around 500 images . i have a input image and i have to compare that image with the database images to find wheater it is  matches to any image or not .if matches how much percentage(%) it matches to the image 
i have to do it by using Canny Egde detection algorithm... i am very new to Matlab.
so i am confusion wheater it is posible to do it using canny edge detection algorithm or not??
if it is posible please tell me the algorithm or step to do it .


thanks in advance

waiting for good responce.............