Apple Final Cut Pro 5 User Manual download pdf (Page 304)

304 Appendix A

Lighten

Lighten(srcImage1,

srcImage2,

destImage,

percent, type)

For each pixel in the destination

image buffer, this function

chooses the corresponding

pixel in the source image that

has the lighter grayscale value.

Darken

Darken(srcImage1,

srcImage2,

destImage,

percent, type)

For each pixel in the destination

image buffer, this function

chooses the corresponding

pixel in the source image that

has the darker grayscale value.

Difference

Difference(srcImage1,

srcImage2,

destImage, type)

Each pixel in the destination

image buffer is ﬁlled with a

color value corresponding to

the absolute value of the

difference between each of the

channels in the two source

image buffers.

Add

Add(srcImage1,

srcImage2,

destImage,

percent, type)

Each pixel in the destination

image buffer is ﬁlled with a

color value corresponding to

the sum of the pixels in source

image 1 and the fraction of

source image 2 speciﬁed by

“percent.”

AddOffset

AddOffset(srcImage1,

srcImage2,

destImage,

offset)

Each pixel in the destination

image buffer is ﬁlled with a

color value corresponding to

the sum of the pixels in source

image 1 and source image 2.

The amount of offset is

speciﬁed by adding or

subtracting a value.

Command Syntax Description

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