计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2015年
8期
156-159
,共4页
去雾%二次滤波%图像增强%暗原色先验
去霧%二次濾波%圖像增彊%暗原色先驗
거무%이차려파%도상증강%암원색선험
dehazing%secondary filter%image enhancement%dark channel prior
为改善雾、霾气候条件下采集到的图像质量,提出了一种快速的单幅图像去雾算法。该算法利用中值滤波对暗原色先验算法进行重新定义,消除halo效应;利用均值滤波对上述结果进行二次滤波,提高透射率的估算精度以及恢复图像的亮度。该算法简单,时间耗损度低。实验结果证明,该算法可有效提高场景的对比度和清晰度,且对天空色度具有很好的恢复性。
為改善霧、霾氣候條件下採集到的圖像質量,提齣瞭一種快速的單幅圖像去霧算法。該算法利用中值濾波對暗原色先驗算法進行重新定義,消除halo效應;利用均值濾波對上述結果進行二次濾波,提高透射率的估算精度以及恢複圖像的亮度。該算法簡單,時間耗損度低。實驗結果證明,該算法可有效提高場景的對比度和清晰度,且對天空色度具有很好的恢複性。
위개선무、매기후조건하채집도적도상질량,제출료일충쾌속적단폭도상거무산법。해산법이용중치려파대암원색선험산법진행중신정의,소제halo효응;이용균치려파대상술결과진행이차려파,제고투사솔적고산정도이급회복도상적량도。해산법간단,시간모손도저。실험결과증명,해산법가유효제고장경적대비도화청석도,차대천공색도구유흔호적회복성。
A fast single image defogging method is proposed to improve the quality of the haze image. The dark channel prior is redefined by median filter to suppress halo effect. Average filter is used for the secondary filtering to improve the estimate precision of the transmittance and the brightness of the image. This method is simple, less time consumption. The experimental results show that this algorithm can effectively improve the contrast and clarity of scene, and can recover high quality sky haze-free image.