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paag:blur [2019/04/07 10:57] |
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+ | [{{ paag_blur.png|a) the circle boundary (emphasized in yellow) is significantly less distinct due to blur}}] **Blur** refers to the parts of a depiction which become less distinct and less defined. | ||
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+ | Unintended blur can happen as the result of applying the averaging of values excessively in an attempt to lessen [[aa|aliasing]] artifacts. | ||
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+ | Blur itself can be perceived as an unwanted artifact if it destroys the clarity of a part which was originally intended to appear crisp. | ||
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+ | Blur may be used intentionally, for example to emphasize perceptual effects like soft shadows, a lack of detail in some light/shadow situations, [[motion blur]] or unfocused areas. | ||
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+ | Shown in the example are an aliased circle, an anti-aliased circle and a blurred circle. | ||
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+ | further reading: | ||
+ | * [[wp>Defocus_aberration|Defocus aberration]] | ||
+ | * [[wp>Bokeh|]] | ||