计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2015年
5期
178-182
,共5页
文字分割%连通分量重建%逆半调%颜色采样%均值偏移%聚类中心
文字分割%連通分量重建%逆半調%顏色採樣%均值偏移%聚類中心
문자분할%련통분량중건%역반조%안색채양%균치편이%취류중심
text segmentation%connected component reconstruction%inverse halftoning%color sample%mean shift%clus-tering center
针对彩色印刷图像背景色彩丰富和汉字存在多个连通分量，连通域文字分割算法不能精确提取文字，提出基于汉字连通分量的彩色印刷图像版面分割方法。利用金字塔变换逆半调算法对图像进行预处理，通过颜色采样和均值偏移分割图像颜色，标记文字连通分量，根据汉字结构和连通分量特性重建汉字连通分量，分析文字连通分量连接关系确定文字排列方向实现文字分割。实验结果表明，该方法能够有效地重建汉字连通分量，在彩色印刷图像中实现对不同字体、字号、颜色的文字分割。
針對綵色印刷圖像揹景色綵豐富和漢字存在多箇連通分量，連通域文字分割算法不能精確提取文字，提齣基于漢字連通分量的綵色印刷圖像版麵分割方法。利用金字塔變換逆半調算法對圖像進行預處理，通過顏色採樣和均值偏移分割圖像顏色，標記文字連通分量，根據漢字結構和連通分量特性重建漢字連通分量，分析文字連通分量連接關繫確定文字排列方嚮實現文字分割。實驗結果錶明，該方法能夠有效地重建漢字連通分量，在綵色印刷圖像中實現對不同字體、字號、顏色的文字分割。
침대채색인쇄도상배경색채봉부화한자존재다개련통분량，련통역문자분할산법불능정학제취문자，제출기우한자련통분량적채색인쇄도상판면분할방법。이용금자탑변환역반조산법대도상진행예처리，통과안색채양화균치편이분할도상안색，표기문자련통분량，근거한자결구화련통분량특성중건한자련통분량，분석문자련통분량련접관계학정문자배렬방향실현문자분할。실험결과표명，해방법능구유효지중건한자련통분량，재채색인쇄도상중실현대불동자체、자호、안색적문자분할。
Contraposing the background color of the color printed image is plentiful and Chinese character has multiple connected components, text segmentation algorithm of connected domain can’t accurately extract text. A method of color printed image’s layout segmentation based on Chinese character connected component is proposed. Image is prepro-cessed via inverse halftoning algorithm of pyramid transforming. Then, it segments image color through color sampling and mean shift and marks text connected components. It reconstructs Chinese character connected component according to the structure of characters and connected components feature. Finally, the connection relations of characters connected components are analyzed to determine the orientation of text and realize text segmentation. The experimental results show that the method can effectively reconstruct character connected component and achieve text segmentation on color printed image for different font, font size and color.
