计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
8期
127-130
,共4页
图像修复%优先权%局部特征%曲率%梯度
圖像脩複%優先權%跼部特徵%麯率%梯度
도상수복%우선권%국부특정%곡솔%제도
image inpainting%priority%local feature%curvature%gradient
针对Criminisi算法计算目标块填充优先权等级时存在缺陷的问题,提出了一种改进的修复算法,方法在确立新的优先等级函数时,充分考虑图像的局部特征信息--曲率和梯度,将曲率及梯度信息作为优先权值的数据项,从而获得更加可靠的填充修复顺序。实验结果表明,和Criminisi算法相比,该方法克服了修复过程中高纹理区域向低纹理区域过度扩散的问题,并取得了更加理想的视觉修复效果。
針對Criminisi算法計算目標塊填充優先權等級時存在缺陷的問題,提齣瞭一種改進的脩複算法,方法在確立新的優先等級函數時,充分攷慮圖像的跼部特徵信息--麯率和梯度,將麯率及梯度信息作為優先權值的數據項,從而穫得更加可靠的填充脩複順序。實驗結果錶明,和Criminisi算法相比,該方法剋服瞭脩複過程中高紋理區域嚮低紋理區域過度擴散的問題,併取得瞭更加理想的視覺脩複效果。
침대Criminisi산법계산목표괴전충우선권등급시존재결함적문제,제출료일충개진적수복산법,방법재학립신적우선등급함수시,충분고필도상적국부특정신식--곡솔화제도,장곡솔급제도신식작위우선권치적수거항,종이획득경가가고적전충수복순서。실험결과표명,화Criminisi산법상비,해방법극복료수복과정중고문리구역향저문리구역과도확산적문제,병취득료경가이상적시각수복효과。
When computing the order of target patch priority, Criminisi algorithm has defect, to solve this problem, an improved inpainting algorithm is proposed. To establish a new function about priority, the proposed algorithm takes into account local feature of image-curvature and gradient, and uses the information of curvature and gradient as a data item. Thus, the order of filling inpainting is more reliably. The experimental results show that the proposed algorithm over-comes the problem of excessive diffusion from high texture area to low area, and obtains better visual appearance.