Yes, you can do it. From what I understand there are four main methods and intent is the main thing(as Sevarn has mentioned.)
Physical contact: When in the vicinity of another’s physical body, your astral bodies overlap and merge.
Eye contact: What is in your field of vision you are connected too via the refraction of light.
Sympathetic contact: Items that have been in contact at one time with another person. The more contact it has had the more astral contact, therefore the greater connection/link.
Mental contact: Taking through mind alone. Making use of the space-time connection that all that is, has been, or will be, is connected. Being in the present moment and freeing yourself from the concept that there is space between you and the target and that there is actually a flow of time. Merging with the eternal present moment.
So in regards to you question, Musta, a picture is a direct link to another person through all four of these methods if you only see it to be.