Histogram of Exclamation Marks and Its Application for Comics Analysis
This paper proposes a histogram formed by counting the number of exclamation marks in comic books for comics analysis. Exclamation marks in comic books are used for expressing character's emotion and are depicted in frequently excited scenes. Also they are easy to detect from different comic books written by various authors. Hence we represent each comic book by its distribution of exclamation marks as a histogram and use such histogram for topic change detection and visualization of relationships between comic books. Experimental results on real comic books show that our bold approach has potential for approximating of contents of comic books by using the proposed histograms.
eBDtheque: A Representative Database of Comics
We present eBDtheque, a database of various comic book images and their ground truth for panels, balloons and text lines plus semantic annotations. The database consists of a hundred pages of various comic book albums, Franco-Belgian, American comics and mangas. Additionally, we present the piece of software used to establish the ground truth and a tool to validate results against this ground truth. Everything is publicly available for scientific use on http://ebdtheque.univ-lr.fr.
Similar Manga Retrieval Using Visual Vocabulary Based on Regions of Interest
Manga, a kind of graphic novels expressed by sequential line drawings, is an important document image publication which is invoking more and more attentions for their copyright protection. Because of simple constructions and abstract expression styles, similar copies are always applied in plagiarisms of mangas. In addition, the enormous volume of copyrighted manga publications issues a challenge to the task of detecting suspicious images. Considering only some regions of interests (ROIs) require copyright protection, we propose a bag-of-features method using visual words based on ROIs for similar manga retrieval. In the experiments, we applied real manga publications as data and proved the effectiveness of the proposed method.