Pixelization

[1][2] Westworld (1973) was the first feature film to use digital image processing to pixelize photography to simulate an android's point of view.

[4] Other visual processing techniques can help reduce the shocking aspect of images or videos while preserving most of the information of the media.

[6] Japanese pornography laws require that genitals in films (including animated works) and other forms of adult media (such as eroge, drawings, etc) be obscured.

Article 175 of Penal Code (Act No.45 of 1907) still in effect today in Japan forbids any person and imprisons anyone who distributes, sells or displays in public an obscene document, drawing or other objects of such nature.

[7] In Thailand, restrictions are placed on television broadcast depiction of cigarettes being smoked,[8] alcohol being consumed, or guns being pointed at people.