Balloon extraction from complex comic books using edge detection and histogram scoring

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• 作者：João M. C. Correia ; Abel J. P. Gomes
• 关键词：Sobel operator ; Enhanced region fill ; Histogram ; Comic book ; Balloon extraction ; Text extraction
• 刊名：Multimedia Tools and Applications
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：75
• 期：18
• 页码：11367-11390
• 全文大小：2,917 KB
• 刊物类别：Computer Science
• 刊物主题：Multimedia Information Systems
  Computer Communication Networks
  Data Structures, Cryptology and Information Theory
  Special Purpose and Application-Based Systems
  
• 出版者：Springer Netherlands
• ISSN：1573-7721
• 卷排序：75

文摘

Extracting balloons has been a challenge in digital comics, in particular for complex comic books. In fact, current algorithms are seemingly adequate for simple comics, but not for complex ones. This paper proposes an algorithm based on the Sobel operator plus a modified flood fill operator to identify and extract balloons in comic book pages. Unlike other approaches, our algorithm applies to any sort of comics, no matter they are simple or complex comics, without making any assumptions regarding the line continuity of the image, color depth of the image, orientation of the text, and language. Experimental results show that our algorithm significantly improves the rate of correctly detected balloons, and simultaneously decreases the number of false positives, when compared to other algorithms.