Blur generally refers to the appearance of an unfocused image. See Defocus aberration, eyeglass prescription, lens and eye. Specific terms include:

• Bokeh, the appearance of out-of-focus areas from an image produced by a lens
• Box blur, a graphic-art effect
• Gaussian blur, a graphic-art effect
• Motion blur, a photographic and optical effect
• Shallow focus, a photographic technique where the subject is in focus and the background and foreground are blurred.

Blur may also refer to:In music:

• Blur , an English rock band
• Blur , fifth album released by Blur
• The Best Of, compilation album released by Blur
• "Blur", song from Britney Spears' sixth studio album, Circus

In fiction:

• Blur , fictional superhuman from the Marvel Comics universe
• The Blur, pulp magazine novel featuring The Shadow
• "The Blur", a go-kart featured in the film The Little Rascals
• Blurr, a fictional robot from The Transformers

Other:

• Blur Studio, CGI animation company based in California
• "blur", computing event when a GUI element loses focus
• FF Blur, typeface published by FontShop

Blur