摘要
为了实现高分辨率图像采集系统图像色彩的实时校正,提出一种改进的自适应自动白平衡算法。该算法在YCbCr颜色空间进行色温估计,通过加入循环调节环节不断提高通道增益计算的精度,与其他几种典型白平衡算法相比,获得更优的颜色校正效果。根据FPGA实现特点进行硬件实现优化设计。实验结果表明:该算法图像处理速度快且占用硬件资源少,满足高分辨率图像采集系统的实时性要求。
In order to correct the unrealistic color of the images captured by the high-resolution image acquisition system in real time, an improved adaptive and automatic white balance algorithm was proposed. The color temperature estimation in the YCbCr color space was completed by this algorithm, and a regulation module was added to improve the calculation precision of channel gain continuously. Compared with some other automatic white balance algorithms, it could obtain better color correction performance. The circuit design was optimized according to the characteristic of FPGA. The experiment results show that the algorithm consumes less hardware resources, is fast in image processing and can meet the real-time requirement of high-resolution image acquisition system.
出处
《电光与控制》
北大核心
2013年第12期37-41,共5页
Electronics Optics & Control
基金
航空科学基金(20105113002)
关键词
图像处理
色彩校正
白平衡
FPGA
色温
image processing
color correction
white balance
FPGA
color temperature
