H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/38, 352/10.5
H04N 9/79 (2006.01) H04N 9/64 (2006.01)
Patent
CA 1326288
ABSTRACT OF THE DISCLOSURE An improved color correction system and method are disclosed. A color corrector may include circuits for selecting a predetermined range of colors around an infinitely selectable principal color and circuits for selectively generating color corrections for the video picture signals which correspond to the predetermined range of colors. The color corrections are then applied to the video picture signals to produce color corrected video picture signals. The color corrections may be stored and recalled on a scene-by-scene basis. Two or more such circuits may be employed so that two or more different principal colors can be selected. Preferably, the predetermined range of colors is adjustable. A color corrector may also include circuits for storing and recalling area discrimination signals on a scene-by-scene basis. Moreover, a color corrector may include circuits for identifying the color corrections for a particular scene with a video picture from that particular scene. The video picture for the particular scene is displayed, and the operator may recall the color corrections by using the video picture together with an associated control. More particularly, the area discrimination signals may define one or more rectilinear windows. Different color corrections may be applied to the video signals within different windows. Furthermore, one window can be established so that it surrounds another window, and the color corrections for the video signals within the inner window can have a predetermined transition, e.g., a linear transition, to the color corrections for the video signals outside the outer window. That is, the color corrections may vary linearly in the region between the inner and outer windows.
530882
Belmares-Sarabia Armand
Chayka Stanley J.
Bereskin & Parr
Cintel Inc.
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