Anaglyph
     
 
 
 
An anaglyph is an image in which one view of the scene is portrayed in one color (typically, red) and another view is portrayed in another color (typically aqua or cyan).
 
     
     
  An anaglyph is viewed through glasses that have (typically) a red filter over the left eye and a blue or green filter over the right eye.  
   
  When the anaglyph is viewed through glasses like shown above, the lenses produce a separate view for each eye. The two views mimic retinal disparity patterns associated with depth and portions of the scene are experienced as being at different distances from the observer.