Editing Ambiguous image (section)

===Good continuation===
The principle of good continuation provides the visual system a basis for identifying continuing edges. This means that when a set of lines is perceived, there is a tendency for a line to continue in one direction. This allows the visual system to identify the edges of a complex image by identifying points where lines cross. For example, two lines crossed in an "X" shape will be perceived as two lines travelling diagonally rather than two lines changing direction to form "V" shapes opposite to each other. An example of an ambiguous image would be two curving lines intersecting at a point. This junction would be perceived the same way as the "X", where the intersection is seen as the lines crossing rather than turning away from each other. Illusions of good continuation are often used by magicians to trick audiences.<ref>{{cite journal | last1 = Bamhart | first1 = A.S. | s2cid = 8016846 | year = 2010 | title = The exploitation of gestalt principles by magicians | journal = Perception | volume = 39 | issue = 9| pages = 1286–1289 | doi = 10.1068/p6766 | pmid = 21125955 }}</ref>