摘要
为修复唐卡,需对破损区域进行分割。针对色彩脱落型唐卡破损区域特点,提出了分类分割的方法。利用彩色图像的灰度梯度模获取区域的边缘,去除伪破损区域边缘后,利用边缘点扩散得到区域。将其分为小面积区域和大面积区域两类。对这两类区域再分别处理,小面积区域去除伪破损区域得到小面积破损区域;大面积区域经过去除伪破损区域、提取大面积破损区域后,剩余的便为复杂区域,再提取复杂区域中的小面积破损区域、小孔区域,把这两种区域合并、膨胀、去伪处理,得到复杂区域的破损区域。把小面积破损区域、大面积破损区域和复杂区域中的破损区域合并,得到整幅图像的破损区域。实验验证分割效果良好。
The damaged regions in Thangka need to be segmented in order to repair Thangka. A method is proposed that can segment the damaged regions according to the classification of damaged area, aiming at the characteristics of damaged regions in Thangka for missing colors. The edges can be obtained using gray Gradient modules; the regions can be gained through by edges spreading before removing the fake edges. The regions are divided into small regions and large regions, which are handled separately. Small damaged regions can be obtained after removing the fake damaged regions; large regions need a series of pro- cessing, removing fake damaged regions, extracting the large regions, remaining complex regions; the tiny damaged regions and damaged holes regions are extracted from the complex regions, they are combined, dilated, the damaged regions are obtain after removing fake damaged regions. The small damaged regions, large damaged regions and the damaged regions in the complex regions are combined into together, the damaged regions are segmented in the whole image. The segmentation result is fine through by the experiments.
出处
《计算机工程与应用》
CSCD
2013年第4期219-223,共5页
Computer Engineering and Applications
基金
安徽省教育厅自然科学基金项目(No.KJ2010B152)
国家自然科学基金项目(No.61162021)
关键词
唐卡
破损区域
分割
Thangka
damaged regions
segmentation
