Two-stage Photograph Cartoonization via Line Tracing

dc.contributor.authorLi, Siminen_US
dc.contributor.authorWen, Qiangen_US
dc.contributor.authorZhao, Shuangen_US
dc.contributor.authorSun, Zixunen_US
dc.contributor.authorHe, Shengfengen_US
dc.contributor.editorEisemann, Elmar and Jacobson, Alec and Zhang, Fang-Lueen_US
dc.date.accessioned2020-10-29T18:51:20Z
dc.date.available2020-10-29T18:51:20Z
dc.date.issued2020
dc.description.abstractCartoon is highly abstracted with clear edges, which makes it unique from the other art forms. In this paper, we focus on the essential cartoon factors of abstraction and edges, aiming to cartoonize real-world photographs like an artist. To this end, we propose a two-stage network, each stage explicitly targets at producing abstracted shading and crisp edges respectively. In the first abstraction stage, we propose a novel unsupervised bilateral flattening loss, which allows generating high-quality smoothing results in a label-free manner. Together with two other semantic-aware losses, the abstraction stage imposes different forms of regularization for creating cartoon-like flattened images. In the second stage we draw lines on the structural edges of the flattened cartoon with the fully supervised line drawing objective and unsupervised edge augmenting loss. We collect a cartoon-line dataset with line tracing, and it serves as the starting point for preparing abstraction and line drawing data. We have evaluated the proposed method on a large number of photographs, by converting them to three different cartoon styles. Our method substantially outperforms state-of-the-art methods in terms of visual quality quantitatively and qualitatively.en_US
dc.description.number7
dc.description.sectionheadersStylized Graphics
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume39
dc.identifier.doi10.1111/cgf.14170
dc.identifier.issn1467-8659
dc.identifier.pages587-599
dc.identifier.urihttps://doi.org/10.1111/cgf.14170
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf14170
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectComputing methodologies
dc.subjectNeural networks
dc.subjectImage processing
dc.titleTwo-stage Photograph Cartoonization via Line Tracingen_US
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