ABSTRACT

In the telecine process, two forms of color correction are available: primary and secondary color correction. The method of primary color correction is similar to the capabilities available to the film laboratory color timer except that the colorist has the added ability to adjust the overall black, gamma, and gain levels of the image. These parameters may be accessed from the color-correction computer’s remote-control panel. Located on this panel is a set of trackballs or control sticks, which allow the colorist to adjust the color balance of the lift, gamma, and gain within the picture. In addition to this, secondary color correction gives the colorist the ability to adjust the hue, saturation, and luminance of certain colors within the scene. For example, assume that the overall color of the scene is correct but the color of the flowers within the picture is wrong. In this situation, secondary color correction could be used to change the color of the flowers without altering the rest of the picture. The color-correction computer would compile a list of the corrections on a scene-by-scene basis. When the color corrected material was played back, the correction information stored in the computer would be viewed in real time and recorded to tape.