ADOBE PREMIERE PRO 2.0
User Guide
276
To isolate a single color using Color Pass
The Color Pass effect lets you isolate a single color or a range of colors. Adjustments are made in a dialog box showing
the Clip Sample and Output Sample. You can also adjust the Color Pass effect properties in the Effect Controls panel.
If you want to color correct a single color or range of colors in a clip, use the Secondary Color Correction controls in
the Color Correction effects.
1
Drag the Color Pass effect to a clip.
2
In the Effect Controls panel, click the Setup icon
for the Color Pass effect.
3
In the Color Pass Settings dialog box, do one of the following to select the color that you want to preserve:
•
Move the pointer into the Clip Sample (the pointer turns into an eyedropper) and click to select a color.
•
Click the color swatch, select a color in the Adobe Color Picker, and then click OK to close the Adobe Color Picker.
The selected color appears in the Output Sample.
4
For the Similarity option, drag the slider or enter a value to increase or decrease the color range to be preserved.
5
To reverse the effect, so that all colors except the specified color are preserved, select the Reverse option.
To animate this effect, use the keyframe features in the Effect Controls panel.
See also
“Color Pass effect” on page 315
“To specify a color or range of colors to adjust” on page 272
To adjust brightness using convolution
1
In the Effects panel, click the triangle to expand the Video Effects bin, and then click the triangle to expand the
Adjust bin.
2
Drag the Convolution Kernel effect to the clip in the Timeline panel.
If the clip is already selected in the Timeline panel, you can drag the Convolution Kernel to the Video Effects section
of the Effect Controls panel.
3
In the Effect Controls panel, click the Convolution Kernel Setup icon
.
4
In the Convolution Matrix section of the Convolution Kernel Settings dialog box, click the center text box in the
group of nine boxes. This box represents the pixel being evaluated.
5
Type a value (from –999 to +999) by which you want to multiply that pixel’s brightness value.
6
Click a text box representing an adjacent pixel to which you want to assign a weighted value.
7
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 evaluated pixel multiplied by 2, type 2 in the text box to the right of the center box.
8
Repeat the step 7 for all pixels that you want to include in the operation. You don’t need to type values in all of the
text boxes.
9
In the Scale text box, type the value by which to divide the sum of the brightness values of the pixels included in
the calculation.