Apple Color 1.0 User Manual download pdf (Page 252)

252 Chapter 11 Color FX

Duotone

Desaturates the image, mapping the black and white points of the image to two user

customizable colors to create tinted images with dual tints from white to black.

Duotone has two parameters:

Â Light Color: The color that the white point is mapped to.

Â Dark Color: The color that the black point is mapped to.

Edge Detector

A convolution filter that boosts image contrast in such a way as to reduce the image to

the darkest outlines that appear throughout. Edge Detector has two parameters:

Â B&W: Desaturates the resulting image. Useful when using this node to generate

mattes.

Â Scale: Adjusts the white point. Lowering scale helps increase contrast and crush

midtone values to emphasize the outlines.

Â Bias: Adjusts overall contrast. Lowering Bias increases contrast, while raising it lowers

contrast.

Exposure

Raises the highlights or crushes the shadows, depending on whether you raise or lower

the Exposure parameter. This node has one parameter:

Â Exposure: Raising this parameter raises the highlights while keeping the black point

pinned. Setting this parameter to 0 results in no change. Lowering this parameter

scales the image levels down, crushing the shadows while lowering the highlights by

a less severe amount.

Film Grain

Adds noise to the darker portions of an image to simulate film grain or video noise due

to underexposure. Highlights in the image are unaffected. This node is useful if you

have to match a clean, well-exposed insert shot into a scene that’s noisy due to

underexposure. Also useful for creating a distressed film look. This node has three

parameters:

Â Grain Intensity: Makes the noise more visible by raising its contrast ratio (inserting

both light and dark pixels of noise) as well as the saturation of the noise.

Â Grain Size: Increases the size of each “grain” of noise that’s added. Bear in mind that

the size of the film grain is relative to the resolution of your project. Film grain of a

particular size applied to a standard definition shot will appear “grainier” than the

same-sized grain applied to a high definition shot.

Â Monochrome: Turning this button on results in the creation of monochrome, or

grayscale, noise, with no color.

1 2 ... 247 248 249 250 251 252 253 254 255 256 257 ... 363 364

No comments

Apple Color 1.0 User Manual Page 252