ColorizeDiffusion: Adjustable Sketch Colorization with Reference Image and Text

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Hauptverfasser: Yan, Dingkun, Yuan, Liang, Wu, Erwin, Nishioka, Yuma, Fujishiro, Issei, Saito, Suguru
Format: Preprint
Veröffentlicht: 2024
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author Yan, Dingkun
Yuan, Liang
Wu, Erwin
Nishioka, Yuma
Fujishiro, Issei
Saito, Suguru
author_facet Yan, Dingkun
Yuan, Liang
Wu, Erwin
Nishioka, Yuma
Fujishiro, Issei
Saito, Suguru
contents Diffusion models have recently demonstrated their effectiveness in generating extremely high-quality images and are now utilized in a wide range of applications, including automatic sketch colorization. Although many methods have been developed for guided sketch colorization, there has been limited exploration of the potential conflicts between image prompts and sketch inputs, which can lead to severe deterioration in the results. Therefore, this paper exhaustively investigates reference-based sketch colorization models that aim to colorize sketch images using reference color images. We specifically investigate two critical aspects of reference-based diffusion models: the "distribution problem", which is a major shortcoming compared to text-based counterparts, and the capability in zero-shot sequential text-based manipulation. We introduce two variations of an image-guided latent diffusion model utilizing different image tokens from the pre-trained CLIP image encoder and propose corresponding manipulation methods to adjust their results sequentially using weighted text inputs. We conduct comprehensive evaluations of our models through qualitative and quantitative experiments as well as a user study.
format Preprint
id arxiv_https___arxiv_org_abs_2401_01456
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle ColorizeDiffusion: Adjustable Sketch Colorization with Reference Image and Text
Yan, Dingkun
Yuan, Liang
Wu, Erwin
Nishioka, Yuma
Fujishiro, Issei
Saito, Suguru
Computer Vision and Pattern Recognition
Diffusion models have recently demonstrated their effectiveness in generating extremely high-quality images and are now utilized in a wide range of applications, including automatic sketch colorization. Although many methods have been developed for guided sketch colorization, there has been limited exploration of the potential conflicts between image prompts and sketch inputs, which can lead to severe deterioration in the results. Therefore, this paper exhaustively investigates reference-based sketch colorization models that aim to colorize sketch images using reference color images. We specifically investigate two critical aspects of reference-based diffusion models: the "distribution problem", which is a major shortcoming compared to text-based counterparts, and the capability in zero-shot sequential text-based manipulation. We introduce two variations of an image-guided latent diffusion model utilizing different image tokens from the pre-trained CLIP image encoder and propose corresponding manipulation methods to adjust their results sequentially using weighted text inputs. We conduct comprehensive evaluations of our models through qualitative and quantitative experiments as well as a user study.
title ColorizeDiffusion: Adjustable Sketch Colorization with Reference Image and Text
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2401.01456