电光与控制
電光與控製
전광여공제
ELECTRONICS OPTICS & CONTROL
2013年
12期
37-41
,共5页
田立坤%刘晓宏%李洁%郭晓光
田立坤%劉曉宏%李潔%郭曉光
전립곤%류효굉%리길%곽효광
图像处理%色彩校正%白平衡%FPGA%色温
圖像處理%色綵校正%白平衡%FPGA%色溫
도상처리%색채교정%백평형%FPGA%색온
image processing%color correction%white balance%FPGA%color temperature
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。
為瞭實現高分辨率圖像採集繫統圖像色綵的實時校正，提齣一種改進的自適應自動白平衡算法。該算法在YCbCr顏色空間進行色溫估計，通過加入循環調節環節不斷提高通道增益計算的精度，與其他幾種典型白平衡算法相比，穫得更優的顏色校正效果。根據FPGA實現特點進行硬件實現優化設計。實驗結果錶明：該算法圖像處理速度快且佔用硬件資源少，滿足高分辨率圖像採集繫統的實時性要求。
위료실현고분변솔도상채집계통도상색채적실시교정，제출일충개진적자괄응자동백평형산법。해산법재YCbCr안색공간진행색온고계，통과가입순배조절배절불단제고통도증익계산적정도，여기타궤충전형백평형산법상비，획득경우적안색교정효과。근거FPGA실현특점진행경건실현우화설계。실험결과표명：해산법도상처리속도쾌차점용경건자원소，만족고분변솔도상채집계통적실시성요구。
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 .
