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发明授权
CN101415124B 红绿蓝信号的色彩校正方法及装置 失效 - 权利终止

红绿蓝信号的色彩校正方法及装置
摘要：
本发明关于一种红绿蓝信号的色彩校正方法及装置。其中该方法包括，首先，根据红绿蓝(RGB)信号于一RGB色空间中定义一原始RGB坐标点，根据原始RGB坐标点得到一参考平面，其中原始RGB坐标点位于参考平面上，参考平面上的所有点与原始RGB坐标点具有相同的亮度，且参考平面正交于一亮度轴。然后，定义亮度轴及参考平面的交叉点为参考平面的一原点。之后，通过以亮度轴为轴而旋转原始RGB坐标点、移动原始RGB坐标点靠近或远离原点及沿着亮度轴的方向平移原始RGB坐标点，以分别独立地且连续地调整RGB信号的色相(H)、彩度(S)及亮度(V)，以得到一新RGB坐标点，新RGB坐标点对应至一新RGB信号。
摘要（英）：

A color correction method of an RGB signal includes the following steps. First, an original RGB-coordinate point in an RGB color space is defined according to the RGB signal, and a reference plane is obtained according to the original RGB-coordinate point. The original RGB-coordinate point locates on the reference plane, all points on the reference plane have the same value with the original RGB-coordinate point, and the reference lane is orthogonal to a value axis. Next, an intersection point of the value axis and the reference plane is defined as an origin of the reference plane. Afterwards, the hue, saturation and value of the RGB signal are independently and continuously adjusted respectively by rotating the original RGB-coordinate point around the value axis, moving the original RGB-coordinate point towards to or away from the origin and shifting the original RGB-coordinate point along the value axis to obtain a new RGB-coordinate point.

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