User Guide

Chapter Finish

11 - 183

Color Correction Editor

About the scale: The horizontal axis is C

, the vertical axis is C

, the six markings indicate the cor-

responding color locuses at a saturation of 75 %.

The maximum saturation of the test image colors is 100 %; this is why the corners of the hexagon

are located outside the circle.

The square contains the 75% color range.

Unlike an analog vectorscope, the digital Vector Display of Pinnacle Liquid Color Correc-

tion displays disconnected points. This means, for example, that the typical line patterns

are omitted from standard color bars interpretation. Another remark about color bars:

The additional points visible in the digital display are the results of minimal “stray colors”

in the transition to adjacent colors that are produced through anti-aliasing.

2 Go to the Primary Color Correction area (bottom left) and drag the Saturation slider (S).

The hexagon expands or contracts and the colors in the test image intensify, fade or dis-

appear altogether. In the Vec tor Di splay, a black-and-white image exists as a tiny dot at the

point where the coordinates intersect.

Note: Clicking the button displayed quickly resets the original values.

3 Now try the Hue slider (H). The hexagon rotates like the vanes of a windmill. All the hues

in the test image change to the adjacent hue.

Primary color correction of the hue is especially useful in an NTSC system where often

the entire spectrum is shifted during transmission; Hue can get it back on track.

4 Drag one of the three gray Primary Color Correction bars. These are the Luminance

(Brightness) sliders. You will notice that while the brightness of the test image varies, the

Vector Display remains the same. Why?

5 Because Luminance operates on a different plane.

You will see this when you select the Cube display from the list box or when you click the

Rotate button (which may have to be retrieved from the tool box).

6 Initially an image appears that is similar to the hexagon in the Vector Display but without

the circular scale. The axes are identified as C

and C