Apple Color 1.0 User Manual download pdf (Page 253)

Chapter 11 Color FX 253

Film Look

An “all-in-one” film look node. Combines the Film Grain operation described above with

an “s-curve” exposure adjustment that slightly crushes the shadows and boosts the

highlights. Contrast in the midtones is stretched, but the distribution of the midtones

remains centered, so there’s no overall lightening or darkening. 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 Contrast: Makes an “s-curve” adjustment to contrast, which crushes the shadows and

boosts the highlights, while leaving the midtones centered. A value of 0 preserves

the original contrast of the corrected image, while a value of 1 is the maximum

contrast expansion that is possible with this node.

Gain

Adjusts contrast by raising or lowering the white point of the image while leaving the

black point pinned in place, and scaling the midtones between the new white point

and the black point. This node has four parameters:

Â Gain: Adjusts the red, green, and blue channels simultaneously, for an overall change

to image highlights and midtones.

Â Red Gain: Adjusts the red channel only, enabling color correction based on a white

point adjustment for that channel.

Â Green Gain: Adjusts the green channel only, enabling color correction based on a

white point adjustment for that channel.

Â Blue Gain: Adjusts the blue channel only, enabling color correction based on a white

point adjustment for that channel.

Gamma

Makes a standard gamma adjustment, which makes a nonlinear adjustment to raise or

lower the distribution of midtones of the image while leaving the black and white

points pinned in place. This is a power function, (f(x) = x

). This node has four

parameters:

Â Gamma: Adjusts the red, green, and blue channels simultaneously, for an overall

change to image midtones.

Â Red Gamma: Adjusts the red channel only, enabling color correction based on a

gamma adjustment for that channel.

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Apple Color 1.0 User Manual Page 253