Fine-Tuning Stable Diffusion XL for Stylistic Icon Generation: A Comparison of Caption Size

• URL: http://arxiv.org/abs/2407.08513v2
• Date: Sat, 13 Jul 2024 22:52:22 GMT
• Title: Fine-Tuning Stable Diffusion XL for Stylistic Icon Generation: A Comparison of Caption Size
• Authors: Youssef Sultan, Jiangqin Ma, Yu-Ying Liao,
• Abstract summary: We show different fine-tuning methods for Stable Diffusion XL. We also show how important it is to properly define what "high-quality" really is.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this paper, we show different fine-tuning methods for Stable Diffusion XL; this includes inference steps, and caption customization for each image to align with generating images in the style of a commercial 2D icon training set. We also show how important it is to properly define what "high-quality" really is especially for a commercial-use environment. As generative AI models continue to gain widespread acceptance and usage, there emerge many different ways to optimize and evaluate them for various applications. Specifically text-to-image models, such as Stable Diffusion XL and DALL-E 3 require distinct evaluation practices to effectively generate high-quality icons according to a specific style. Although some images that are generated based on a certain style may have a lower FID score (better), we show how this is not absolute in and of itself even for rasterized icons. While FID scores reflect the similarity of generated images to the overall training set, CLIP scores measure the alignment between generated images and their textual descriptions. We show how FID scores miss significant aspects, such as the minority of pixel differences that matter most in an icon, while CLIP scores result in misjudging the quality of icons. The CLIP model's understanding of "similarity" is shaped by its own training data; which does not account for feature variation in our style of choice. Our findings highlight the need for specialized evaluation metrics and fine-tuning approaches when generating high-quality commercial icons, potentially leading to more effective and tailored applications of text-to-image models in professional design contexts.

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