太赫兹科学与电子信息学报
太赫玆科學與電子信息學報
태혁자과학여전자신식학보
Information and Electronic Engineering
2013年
2期
254-259
,共6页
图像去雾%图像分割%大气散射模型%暗原色先验%直方图均衡
圖像去霧%圖像分割%大氣散射模型%暗原色先驗%直方圖均衡
도상거무%도상분할%대기산사모형%암원색선험%직방도균형
image defogging%image segmentation%atmosphere scattering model%dark channel priority%histogram equalization
在雾天环境下,大气介质中悬浮颗粒的散射作用导致图像质量严重下降,限制了其使用范围,因此对雾天图像进行去雾处理是必要的.根据暗原色先验去雾的原理,在局部区域内基于图像分割的思想来较准确快速估计雾天图像的传播图,然后应用大气散射模型对雾天图像进行去雾处理,并通过直方图拉伸来增大处理后的图像的对比度.实验结果表明,该算法能有效去除雾气对图像的影响,与传统去雾算法相比较,具有较快的处理速度和较强的实用性.
在霧天環境下,大氣介質中懸浮顆粒的散射作用導緻圖像質量嚴重下降,限製瞭其使用範圍,因此對霧天圖像進行去霧處理是必要的.根據暗原色先驗去霧的原理,在跼部區域內基于圖像分割的思想來較準確快速估計霧天圖像的傳播圖,然後應用大氣散射模型對霧天圖像進行去霧處理,併通過直方圖拉伸來增大處理後的圖像的對比度.實驗結果錶明,該算法能有效去除霧氣對圖像的影響,與傳統去霧算法相比較,具有較快的處理速度和較彊的實用性.
재무천배경하,대기개질중현부과립적산사작용도치도상질량엄중하강,한제료기사용범위,인차대무천도상진행거무처리시필요적.근거암원색선험거무적원리,재국부구역내기우도상분할적사상래교준학쾌속고계무천도상적전파도,연후응용대기산사모형대무천도상진행거무처리,병통과직방도랍신래증대처리후적도상적대비도.실험결과표명,해산법능유효거제무기대도상적영향,여전통거무산법상비교,구유교쾌적처리속도화교강적실용성.
It is very necessary to defog the images captured in the foggy days,because the scattering effect of atmospheric suspending particles will lead to serious image degradation, which directly influences the visual effect and its application range. Based on the principle of dark channel priority,a segmentation model is introduced to estimate a image transmission map precisely and fast in local area, and then the atmosphere scattering model is applied to defog the images,and the image contrast after defogging is enhanced by histogram stretching. Experiment results show that the proposed algorithm efficiently removes the influence of the fog to the image with high processing speed and wide application range.
