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Related papers: Attention-Aware Anime Line Drawing Colorization

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It is a time-consuming and tedious work for manually colorizing anime line drawing images, which is an essential stage in cartoon animation creation pipeline. Reference-based line drawing colorization is a challenging task that relies on…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Yu Cao , Xiangqiao Meng , P. Y. Mok , Xueting Liu , Tong-Yee Lee , Ping Li

Recent advances in diffusion models have significantly improved the performance of reference-guided line art colorization. However, existing methods still struggle with region-level color consistency, especially when the reference and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Qianru Qiu , Jiafeng Mao , Kento Masui , Xueting Wang

Line art colorization plays a crucial role in hand-drawn animation production, where digital artists manually colorize segments using a paint bucket tool, guided by RGB values from character color design sheets. This process, often called…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Yuekun Dai , Qinyue Li , Shangchen Zhou , Yihang Luo , Chongyi Li , Chen Change Loy

Exemplar-based colourisation aims to add plausible colours to a grayscale image using the guidance of a colour reference image. Most of the existing methods tackle the task as a style transfer problem, using a convolutional neural network…

Image and Video Processing · Electrical Eng. & Systems 2021-05-06 Marc Gorriz Blanch , Issa Khalifeh , Alan Smeaton , Noel O'Connor , Marta Mrak

Animation colorization plays a vital role in animation production, yet existing methods struggle to achieve color accuracy and temporal consistency. To address these challenges, we propose \textbf{AnimeColor}, a novel reference-based…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Yuhong Zhang , Liyao Wang , Han Wang , Danni Wu , Zuzeng Lin , Feng Wang , Li Song

Reference-based line-art colorization is a challenging task in computer vision. The color, texture, and shading are rendered based on an abstract sketch, which heavily relies on the precise long-range dependency modeling between the sketch…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Zekun Li , Zhengyang Geng , Zhao Kang , Wenyu Chen , Yibo Yang

Derived from diffusion models, MangaNinjia specializes in the task of reference-guided line art colorization. We incorporate two thoughtful designs to ensure precise character detail transcription, including a patch shuffling module to…

Computer Vision and Pattern Recognition · Computer Science 2025-01-15 Zhiheng Liu , Ka Leong Cheng , Xi Chen , Jie Xiao , Hao Ouyang , Kai Zhu , Yu Liu , Yujun Shen , Qifeng Chen , Ping Luo

Exemplar-based image colorization aims to colorize a grayscale image using a reference color image, ensuring that reference colors are applied to corresponding input regions based on their semantic similarity. To achieve accurate semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Satoshi Kosugi

Coloring line art images based on the colors of reference images is an important stage in animation production, which is time-consuming and tedious. In this paper, we propose a deep architecture to automatically color line art videos with…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Min Shi , Jia-Qi Zhang , Shu-Yu Chen , Lin Gao , Yu-Kun Lai , Fang-Lue Zhang

Sketch colorization plays an important role in animation and digital illustration production tasks. However, existing methods still meet problems in that text-guided methods fail to provide accurate color and style reference, hint-guided…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Dingkun Yan , Xinrui Wang , Zhuoru Li , Suguru Saito , Yusuke Iwasawa , Yutaka Matsuo , Jiaxian Guo

Greyscale image colorization for applications in image restoration has seen significant improvements in recent years. Many of these techniques that use learning-based methods struggle to effectively colorize sparse inputs. With the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Harrish Thasarathan , Kamyar Nazeri , Mehran Ebrahimi

Automatic animation line art colorization is a challenging computer vision problem, since the information of the line art is highly sparse and abstracted and there exists a strict requirement for the color and style consistency between…

Computer Vision and Pattern Recognition · Computer Science 2020-11-11 Zhang Qian , Wang Bo , Wen Wei , Li Hai , Liu Jun Hui

Creating high-quality anime illustrations presents notable challenges, particularly for beginners, due to the intricate styles and fine details inherent in anime art. We present an interactive drawing guidance system specifically designed…

Graphics · Computer Science 2025-07-15 Chuang Chen , Xiaoxuan Xie , Yongming Zhang , Tianyu Zhang , Haoran Xie

Attention mechanisms in neural networks have proved useful for problems in which the input and output do not have fixed dimension. Often there exist features that are locally translation invariant and would be valuable for directing the…

Machine Learning · Computer Science 2016-05-26 Miltiadis Allamanis , Hao Peng , Charles Sutton

Automatic colorization of line drawings has been widely studied to reduce the labor cost of hand-drawn anime production. Deep learning approaches, including image/video generation and feature-based correspondence, have improved accuracy but…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Kazuma Nagata , Naoshi Kaneko

Japanese comics (called manga) are traditionally created in monochrome format. In recent years, in addition to monochrome comics, full color comics, a more attractive medium, have appeared. Unfortunately, color comics require manual…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Yugo Shimizu , Ryosuke Furuta , Delong Ouyang , Yukinobu Taniguchi , Ryota Hinami , Shonosuke Ishiwatari

The Japanese comic format known as Manga is popular all over the world. It is traditionally produced in black and white, and colorization is time consuming and costly. Automatic colorization methods generally rely on greyscale values, which…

Graphics · Computer Science 2017-06-22 Paulina Hensman , Kiyoharu Aizawa

Scribble colors based line art colorization is a challenging computer vision problem since neither greyscale values nor semantic information is presented in line arts, and the lack of authentic illustration-line art training pairs also…

Computer Vision and Pattern Recognition · Computer Science 2018-08-13 Yuanzheng Ci , Xinzhu Ma , Zhihui Wang , Haojie Li , Zhongxuan Luo

There is a delicate balance between automating repetitive work in creative domains while staying true to an artist's vision. The animation industry regularly outsources large animation workloads to foreign countries where labor is…

Computer Vision and Pattern Recognition · Computer Science 2020-06-26 Harrish Thasarathan , Mehran Ebrahimi

Attention mechanism has been regarded as an advanced technique to capture long-range feature interactions and to boost the representation capability for convolutional neural networks. However, we found two ignored problems in current…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Zhu Baozhou , Peter Hofstee , Jinho Lee , Zaid Al-Ars
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