层次化区域匹配指导的视频颜色迁移

摘要

This paper describes an approach of color transfer by matching hierarchical structures. Hierarchical segmentation is used to construct a tree of segments of each frame in video sequences. Through defining a similarity metric for trees of frames, structure features of frame contexts are compared and proper segments of frames that can help implement local matching are deduced. Based on the hierarchical structure of frame, local information is combined with color probability distribution function transfer, and local color transfer is implemented to maintain visual effects of video sequences.%提出了一种基于层次化结构的视频颜色迁移方法.利用层次化分割技术对视频帧进行区域分割并将分割区域之间的组织关系用树的形式来描述,形成表示图像组成区域的具有层次化特征的树状结构.通过定义表示图像的树之间的层次化结构的相似性比较方法,对迁移图像之间的局部区域特征进行相似性比较,以寻找目标图像与参考图像局部迁移的最佳区域.在此基础上,利用颜色概率分布迁移的方法在图像的不同区域上进行局部颜色迁移以实现保持目标图像视觉特征的目的.