Q:

how to get list of an specific image likers in instagram? 

for example my instagram account is "A" and i have an image on  account "B". 
can i get a list of likers of the image on account "B" with account "A". 
(All works such as authentication and all thing about instagram api is done on account "A"). 

A:

Yes, with public API you can get latest 120 likes of any public user's post. 
You need to have public_content permission scope and use this API:
https://api.instagram.com/v1/media/{media-id}/likes?access_token=ACCESS-TOKEN

