special glasses (one red lens and one blue lens) or to create colored ghosting effects.
To produce the appearance of the image dropping back, shift the Red channel to the left a
small amount. To bring the image forward, shift the Red channel to the right a small
amount.
Color Pass
The Color Pass effect converts a clip to grayscale, with the exception of a single specified
color. Use the Color Pass effect to highlight a particular area of a clip. For example, in a
clip
of a basketball game, you could highlight the basketball by selecting and preserving its
color, while keeping the rest of the clip displayed in grayscale. Note, however, that with the
Color Pass effect, you can isolate only colors, not objects within the clip.
To specify Color Pass settings:
1 Select the color you want to preserve by clicking a color in the Clip Sample area on the
left (the pointer becomes an eyedropper), or by clicking the Color swatch and clicking a
color in the Color Selection window.
2 Drag the Similarity slider to increase or decrease the range of the specified color.
Using Help | Contents | Index Back 265
Adobe Premiere Pro Help Applying Effects
Using Help | Contents | Index Back 265
3 To reverse the effect, so that all colors except the specified color are preserved, select
the Reverse option.
Color Replace
The Color Replace effect replaces all occurrences of a selected color with a new color,
preserving any gray levels. Using this effect, you could change the color of an object in an
image by selecting it and then adjusting the controls to create a different color.
To replace a color:
1 Choose the color to be replaced by clicking a color in the Clip Sample view, or by
clicking the Target Color swatch and clicking a color in the Selection window.
2 Choose the replacement color by clicking the Replace Color swatch.
3 Broaden or reduce the range of the color you’re replacing by dragging the Similarity
slider.
4 Select the Solid Colors option to replace the specified color without preserving any
gray levels.
Convolution Kernel
The Convolution Kernel effect changes the brightness values of each pixel in the clip
according to a predefined mathematical operation known as a convolution. The
Convolution
Kernel Settings dialog box displays a grid that represents a pattern of pixel
brightness multipliers, with the pixel being evaluated in the center of the grid. Use this
effect to create custom blurs and embosses.
To specify the Convolution Kernel settings:
1 Click the center text box in the group of nine. This box represents the pixel being
evaluated. Type a value (from –999 to +999) by which you want to multiply that pixel’s
brightness value.
2 Click a text box representing an adjacent pixel to which you want to assign a weighted
value. Type the value by which you want the pixel in that position multiplied. For example,
if you want the brightness value of the pixel to the right of the current pixel multiplied by
2, type 2 in the text box to the right of the center box.
3 Repeat the previous step for all pixels that you want to include in the operation. You
don’t need to type values in all of the text boxes.
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