基于色调和饱和度分量的颜色调整电路

Color Adjustment Circuit Based on Hue/Saturation

提出了一种基于色调和饱和度分量的独立颜色调整电路,可用于视频后处理过程中对肤色、蓝天、绿叶等需要强调的颜色进行选择性调整,对其他无关部分不会产生任何影响,以满足不同视觉享受的需要。该方法具有颜色区域选择准确和调整后颜色过渡自然的特点,并成功应用于电视芯片中。该电路在TSMC 0.18μm工艺平台流片,工作频率为150 MHz,主要采用了CORDIC快速算法,整个芯片采用流水线结构,实时处理能力好。

The paper proposes an independent color adjustment circuit based on hue and saturation components. The circuit is capable of selective color adjustment during video post-processing and avoids any influence on other parts. It is characterized of accurate color region selection and natural transition. Being Manufactured in TSMC 0.18μm process, the circuit works at 150 MHz and uses CORDIC algorithm with good real-time processing capability. Keywords：