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Revision Date: 27 August 2015

Blur Effects

This sub-menu contains seven blur effects which are used to blur sections of an image.

Artistic Effects Blur Effects

The following photograph will be used to demonstrate the blur effects.

Original Image Original Image

Fragment

Copies or "fragments" of the image are superimposed over the original. The specified number of copies are redrawn at a Distance and Rotation to the original location as specified in the dialog.

This blur can be useful when creating an unfocussed multi-viewed version of an image. The effect is not unlike modern interpretations of insect-like vision and could be used to fake "drunken" or "semi-conscious" vision.

Example

 

Fragment

Fragment

Gaussian Blur

This blur applies the well known Gaussian blur formula to the image. The result is a defocusing blur in it's simplest sense.

Gaussian Blur has only one configurable parameter: Radius. This a measure of how widely and how strongly the effect is applied.

Example

 

Gaussian Blur

Gaussian Blur

Motion Blur

This effect is useful for adding an illusion of motion to an image, as if a photograph had been taken while the subject was moving in the frame.

The Angle of apparent motion is configurable as is the Distance, which is a measure of how far the effect shifts the original pixels.

Example

 

Motion Blur

Motion Blur

Radial Blur

This effect is similar to Motion Blur, except that the apparent movement is spread through concentric circles instead of a linear or straight path.

Example

 

Radial Blur

Radial Blur

Surface Blur

This effect is used to reduce soft details or noise in an image while retaining most edge details and contrast. The result is a cleaner, simplified version of the original.

Example

 

Surface Blur

Surface Blur

Unfocus

This effect looks similar to Gaussian Blur, but it gives a more dreamy or "unfocused" look to the image. In mathematical terms, Unfocus applies a more uniform weighting to the pixels within the requested radius.

Example

 

Unfocus

Unfocus

Zoom Blur

This effect gives the appearance of motion towards the image subject. The effect effectively mimics blurring in the 3rd dimension as if the viewer was rapidly closing in on the focal point. Another way of looking at this effect is that it is Motion Blur applied outwards from a central point.

Example

 

Zoom Blur

Zoom Blur