Onomatopoeia is an important element for textual messaging in manga. Unlike character dialogue in manga, onomatopoeic expressions are visually stylized, with variations in shape, size, and placement that reflect the scene's intensity and mood. Despite its important role, onomatopoeia has not received much attention in manga generation. In this paper, we focus on onomatopoeia generation and propose OnomatoGen, which stylizes plain text to an onomatopoeic style. We empirically show the unique properties of onomatopoeia generation, which differ from typical text stylization methods, and that OnomatoGen can effectively stylize plain text in an onomatopoeia style.
@article{arxiv.2509.24331,
title = {OnomatoGen: Onomatopoeia Generation with the Alpha-Channel in Manga},
author = {Takara Taniguchi and Wataru Shimoda and Kota Yamaguchi and Hideki Nakayama},
journal= {arXiv preprint arXiv:2509.24331},
year = {2025}
}