Adobe 25520388 User Guide - Page 356

Compound Arithmetic effect, Invert (video) effect

Page 356 highlights

USING ADOBE PREMIERE PRO 351 Effects and transitions Stretch Second Layer To Fit Stretches the second video track to the dimensions of the original clip before blending. Deselect this option to center the second video track on the original clip. Preserve Transparency Ensures that the original layer's alpha channel isn't modified. Compound Arithmetic effect The Compound Arithmetic effect mathematically combines the clip to which it's applied with a control layer. The Compound Arithmetic effect is intended only to provide compatibility with projects created in earlier versions of After Effects that use the Compound Arithmetic effect. Second Source Layer Specifies the video track to use with the current clip in the given operation. Operator Specifies the operation to perform between the two clips. Operate On Channels Specifies the channels to which the effect is applied. Overflow Behavior Specifies how pixel values that exceed the allowed range are treated: • Clip Indicates that the values are limited to the allowed range. • Wrap Indicates that values exceeding the allowed range wrap around from full on to full off, or from full off to full on. • Scale Indicates that the maximum and minimum values are calculated and the results are stretched down from that full range to the range of allowable values. Stretch Second Source To Fit Scales the second clip to match the size (width and height) of the current clip. If this option is deselected, the second clip is placed at its source's current size, aligned with the upper left corner of the source clip. Blend With Original The effect's transparency. The result of the effect is blended with the original image, with the effect result composited on top. The higher you set this value, the less the effect affects the clip. For example, if you set this value to 100%, the effect has no visible result on the clip. If you set this value to 0%, the original image does not show through. Invert (video) effect The Invert (video) effect inverts the color information of an image. Channel Which channel or channels to invert. Each group of items operates in a particular color space, inverting either the entire image in that color space or just a single channel. • RGB/Red/Green/Blue RGB inverts all three of the additive color channels. Red, Green, and Blue each invert an individual color channel. • HLS/Hue/Lightness/Saturation HLS inverts all three of the calculated color channels. Hue, Lightness, and Saturation each invert an individual color channel. • YIQ/Luminance/In Phase Chrominance/Quadrature Chrominance YIQ inverts all three NTSC luminance and chrominance channels. Y (luminance), I (in-phase chrominance), and Q (quadrature chrominance) each invert an individual channel. • Alpha Inverts the alpha channel of the image. The alpha channel isn't a color channel; it specifies transparency. Blend With Original The effect's transparency. The result of the effect is blended with the original image, with the effect result composited on top. The higher you set this value, the less the effect affects the clip. For example, if you set this value to 100%, the effect has no visible result on the clip; if you set this value to 0%, the original image doesn't show through. Last updated 1/16/2012

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351
USING ADOBE PREMIERE PRO
Effects and transitions
Last updated 1/16/2012
Stretch Second Layer To Fit
Stretches the second video track to the dimensions of the original clip before blending.
Deselect this option to center the second video track on the original clip.
Preserve Transparency
Ensures that the original layer’s alpha channel isn’t modified.
Compound Arithmetic effect
The Compound Arithmetic effect mathematically combines the clip to which it’s applied with a control layer. The
Compound Arithmetic effect is intended only to provide compatibility with projects created in earlier versions of After
Effects that use the Compound Arithmetic effect.
Second Source Layer
Specifies the video track to use with the current clip in the given operation.
Operator
Specifies the operation to perform between the two clips.
Operate On Channels
Specifies the channels to which the effect is applied.
Overflow Behavior
Specifies how pixel values that exceed the allowed range are treated:
Clip
Indicates that the values are limited to the allowed range.
Wrap
Indicates that values exceeding the allowed range wrap around from full on to full off, or from full off to full on.
Scale
Indicates that the maximum and minimum values are calculated and the results are stretched down from that
full range to the range of allowable values.
Stretch Second Source To Fit
Scales the second clip to match the size (width and height) of the current clip. If this option
is deselected, the second clip is placed at its source’s current size, aligned with the upper left corner of the source clip.
Blend With Original
The effect’s transparency. The result of the effect is blended with the original image, with the effect
result composited on top. The higher you set this value, the less the effect affects the clip. For example, if you set this
value to 100%, the effect has no visible result on the clip. If you set this value to 0%, the original image does not show
through.
Invert (video) effect
The Invert (video) effect inverts the color information of an image.
Channel
Which channel or channels to invert. Each group of items operates in a particular color space, inverting either
the entire image in that color space or just a single channel.
RGB/Red/Green/Blue
RGB inverts all three of the additive color channels. Red, Green, and Blue each invert an
individual color channel.
HLS/Hue/Lightness/Saturation
HLS inverts all three of the calculated color channels. Hue, Lightness, and
Saturation each invert an individual color channel.
YIQ/Luminance/In Phase Chrominance/Quadrature Chrominance
YIQ inverts all three NTSC luminance and
chrominance channels. Y (luminance), I (in-phase chrominance), and Q (quadrature chrominance) each invert an
individual channel.
Alpha
Inverts the alpha channel of the image. The alpha channel isn’t a color channel; it specifies transparency.
Blend With Original
The effect’s transparency. The result of the effect is blended with the original image, with the effect
result composited on top. The higher you set this value, the less the effect affects the clip. For example, if you set this
value to 100%, the effect has no visible result on the clip; if you set this value to 0%, the original image doesn’t show
through.