Adobe Premiere Pro CS6 - Manual (Page 395)

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Gaussian Blur effect
The Gaussian Blur effect blurs and softens the image and eliminates noise. You can specify that the blur is horizontal, vertical, or both.
Ghosting effect (Windows only)
The Ghosting effect overlays transparencies of the immediately preceding frames on the current frame. This effect can be useful, for example,
when you want to show the motion path of a moving object, such as a bouncing ball. Keyframes cannot be applied to this effect.
Sharpen effect
The Sharpen effect increases the contrast where color changes occur.
Unsharp Mask effect
The Unsharp Mask effect increases the contrast between colors that define an edge.
Original (left), and with effect applied (right)
Radius The distance from the edge at which pixels are adjusted for contrast. If you specify a low value, only pixels near the edge are adjusted.
Threshold The greatest difference between adjacent pixels for which contrast isn’t adjusted. A lower value produces a greater result. A value that
is too low causes an adjustment to the contrast of the entire image. A low value can also generate noise or cause unexpected results.
Channel effects
Arithmetic effect
The Arithmetic effect performs various simple mathematical operations on an image’s red, green, and blue channels.
Operator The operation to perform between the value you specify for each channel and the existing value of that channel for each pixel in the
image:
And, Or, and Xor Apply bitwise logical operations.
Add, Subtract, Multiply, and Difference Apply basic math functions.
Max Set the pixel’s channel value to the greater of the specified value and the pixel’s original value.
Min Set the pixel’s channel value to the lesser of the specified value and the pixel’s original value.
Block Above Set the pixel’s channel value to 0 if the pixel’s original value is greater than the value specified; otherwise, leave the original
value.
Block Below Set the pixel’s channel value to 0 if the pixel’s original value is less than the value specified; otherwise, leave the original
value.
Slice Set the pixel’s channel value to 1.0 if the pixel’s original value is above the specified value; otherwise, set the value to 0. In both
cases, the values for the other color channels are set to 1.0.
Screen Apply a screen.
Clip Result Values Prevents all functions from creating color values that exceed the valid range. If this option isn’t selected, some color values
may wrap around.
Blend effect
The Blend effect blends two clips using one of five modes. After you blend clips using this effect, disable the clip you selected from the Blend With
Layer menu. Select the clip and choose Clip > Enable.
Blend With Layer The clip to blend with (the secondary or control layer).
Mode Blend mode:
Color Only colorizes each pixel in the original image based on the color of each corresponding pixel in the secondary image.
Tint Only is similar to Color Only but tints pixels in the original image only if they are already colored.
Darken Only darkens each pixel in the original image that is lighter than the corresponding pixel in the secondary image.
Lighten Only lightens each pixel in the original image that is darker than the corresponding pixel in the secondary image.
Crossfade fades out the original image while the secondary image fades in.
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