Rules of Perceptual Organizaton

Closer:
Definition- This is the idea that the mind feels the need to complete an object it sees whether it is completed or not.
Example: Your mind makes it a circle or square without it actually being there.

http://www.ashpfoundation.org/transformational/law-of-closure.png

Continuity:
Definition-  It is the principal that states "whatever succeeds for the finite, also succeeds for the infinite"
Example: Your mind makes the conclusion that the lines go on forever even though they end.

https://blogtmssl-templatemonster.netdna-ssl.com/wp-content/uploads/2012/04/cross.jpg?37c8fc

Similarity:
Definition- Your brain takes a bunch of un-whole mixed up things and makes them whole and make sense.
Example- If you hear a bunch of different music playing you can still pick out each song even though there was tons of different words and notes to go along with it.

http://study.com/cimages/multimages/16/Ascii_smiley.jpg

Proximity:

Definition- When we see objects near each other we assume they have something to do together even if they don't. 

Example-

http://study.com/cimages/multimages/16/proximity_circles.jpg

Figure-ground Perception:

Definition- We tend to speate things from figure or object and ground or background.
Example- You either see a man playing a saxophone or a woman's face.

http://www.loyno.edu/~zemmels/A201/lecture/visual_theory/gestaltprinc.html