Adobe Premiere Pro CS6 - Manual (Page 394)

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Blur and Sharpen effects
Antialias effect (Windows only)
The Antialias effect blends the edges between areas of highly contrasting colors. When blended, colors create intermediate shades that make
transitions between dark and light areas appear more gradual.
Camera Blur effect (Windows only)
The Camera Blur effect simulates an image leaving the focal range of the camera, blurring the clip. For example, by setting keyframes for the blur,
you can simulate a subject coming into or going out of focus, or the accidental bumping of the camera. Drag the slider to specify a blur amount for
the selected keyframe; higher values increase the blur.
Channel Blur effect
The Channel Blur effect blurs a clip’s red, green, blue, or alpha channels individually. You can specify that the blur is horizontal, vertical, or both.
Repeat Edge Pixels blurs the pixels beyond the edge of the clip as though they have the same values as the edge pixels. This effect keeps edges
sharp, preventing the edges from darkening and becoming more transparent—which would result from them being averaged with many zeroes.
Deselect this option to make the blur algorithm operate as if the pixel values beyond the edge of the clip are zero.
Compound Blur effect
The Compound Blur effect blurs pixels based on the luminance values of a control clip, also known as a blur layer or blurring map. By default,
bright values in the blur layer correspond to more blurring of the effect clip. Dark values correspond to less blurring. Select Invert Blur for light
values to correspond to less blurring.
This effect is useful for simulating smudges and fingerprints. Also, it can simulate changes in visibility caused by smoke or heat, especially when
used with animated blur layers.
Original (left), blur layer (center), and result (right)
Maximum Blur The maximum amount, in pixels, that any part of the affected clip can be blurred.
Stretch Map To Fit Stretches the control clip to the dimensions of the clip to which it is applied; otherwise, the control clip is centered on the
effect clip.
Directional Blur effect
The Directional Blur effect gives a clip the illusion of motion.
Original (left), and with effect applied (right)
Direction The direction of the blur. The blur is applied equally on either side of a pixel’s center. Therefore, a setting of 180° and a setting of 0°
look the same.
Fast Blur effect
Fast Blur is a close approximation of Gaussian Blur, but Fast Blur blurs large areas more quickly.
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