This sub-menu contains seven blur effects which are used to blur sections of an image.
The following image will be used to demonstrate the effects:
The examples on this page show the effects being applied to an entire image. It is easy to restrict the adjustment to a sub-section of the image simply by making a selection. If a selection is active when the effect is run, it will only be applied to the selected region. Areas outside of the active selection will remain unchanged.
The controls shown in the effect dialogs operate in much the same way; drag the indicator left, right or in a circular motion (for an angle control).
Typing in a numeric value in the text box or using the up/down arrows beside the text box also changes the current value.
The keyboard arrow keys can be used to alter the value of a control once it has the focus.
Multiple controls can be used in isolation or combination. If more than one is altered, the cumulative effect will be shown.
Copies or "fragments" of the image are superimposed over the original.
The specified number of copies (
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 - Effects > Blurs > Fragment
This blur applies the well known Gaussian blur formula to the image. The result is a defocusing blur in it's simplest sense.
has only one configurable parameter:
Example - Effects > Blurs > Gaussian 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 across the frame.
Example - Effects > Blurs > Motion Blur
This effect is similar to , except that the apparent movement is along a circular path instead of a linear path.
Example - Effects > Blurs > Radial 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 - Effects > Blurs > Surface Blur
This effect looks similar to , but it gives a more dreamy or "unfocused" look to the image. In mathematical terms, applies a more uniform weighting to the pixels within the requested radius.
The effect has one parameter:
Example - Effects > Blurs > Unfocus
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 applied outwards from a central point.