基于VLSI设计实现的高效颜色插补算法

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针对Bayer格式阵列的CMOS图像传感器(CIS)片上系统(SoC)中图像信号处理单元(ISP)的研究,提出一种适合VLSI实现的高效颜色插补算法。算法重点重建了缺失的G分量,先进行像素边缘判断,进而结合边缘方向梯度加权计算,使得G分量的重建有效避免了传统方法中易造成边缘变模糊的现象;对于B和R分量的重建,充分利用小范围内已知的像素分量值对其进行线性插补,使得插补后的值更接近真实值。通过对色彩测试标板和自然图像的模拟实验表明,该算法插补后的图像与传统算法相比更清晰、信噪比更高。算法基于VL-SI设
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