Adobe 25520388 - Premiere Pro - PC, Инструкция по использованию, Страница: 326 / 464

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USING ADOBE PREMIERE PRO
Effects and transitions
Last updated 1/16/2012
Original image (left); blacks and whites corrected to broadcast limits (right)
8 Use the following controls to set the black, gray, and white input levels:
Black Level eyedropper
Maps the sampled tone to the setting of the Black Output slider. Click an area in the Program
Monitor that you want to be the darkest value in the image. You can also click the color swatch to open the Adobe
Color Picker and select a color to define the darkest shadow in the image.
Gray Level eyedropper
Maps the sampled tone to a medium gray (level 128). This changes the intensity values of the
middle range of gray tones without dramatically altering the highlights and shadows. You can also click the color
swatch to open the Adobe Color Picker and select a color to define the medium gray in the image.
White Level eyedropper
Maps the sampled tone to the setting of the White Output slider. Click an area in the Program
Monitor that you want to be the lightest value in the image. You can also click the color swatch to open the Adobe
Color Picker and select a color to define the lightest highlight in the image.
Black Input Level slider
Maps the input black level to the setting of the Black Output slider. By default, the Output
black slider is set to 0, where the pixels are completely black. If you’ve adjusted the Black Output to 7.5 IRE or higher,
the darkest shadow will be mapped to that level.
Gray Input Level slider
Controls the midtones and changes the intensity values of the middle range of gray tones
without dramatically altering the highlights and shadows.
White Input Level slider
Maps the input white level to the setting of the White Output slider. By default, the Output
white slider is set to 255, where the pixels are completely white. If you’ve adjusted the White Output to 100 IRE or
lower, the lightest highlight will be mapped to that level.
Note:
You can also adjust the Input and Output levels by scrubbing the underlined text or typing a value for Input Black
Level, Input Gray Level, Input White Level, Output Black Level, and Output White Level.
More Help topics
“ Fast Color Corrector effect ” on page 356
“ Three-Way Color Corrector effect ” on page 363
“ Define the tonal ranges in a clip ” on page 323
“ Specify a color or range of colors to adjust ” on page 324
Select a color with the Adobe Color Picker
You can use the Adobe Color Picker to set target colors in some color and tonal adjustment effects. Clicking a color
swatch in an effect’s controls opens the Adobe Color Picker.
When you select a color in the Adobe Color Picker, it simultaneously displays the numeric values for HSB, RGB, HSL,
YUV, and hexadecimal numbers. This is useful for viewing how the different color modes describe a color.