Text-to-image generative models have made remarkable advancements in generating high-quality images. However, generated images often contain undesirable artifacts or other errors due to model limitations. Existing techniques to fine-tune generated images are time-consuming (manual editing), produce poorly-integrated results (inpainting), or result in unexpected changes across the entire image (variation selection and prompt fine-tuning). In this work, we present Diffusion Brush, a Latent Diffusion Model-based (LDM) tool to efficiently fine-tune desired regions within an AI-synthesized image. Our method introduces new random noise patterns at targeted regions during the reverse diffusion process, enabling the model to efficiently make changes to the specified regions while preserving the original context for the rest of the image. We evaluate our method's usability and effectiveness through a user study with artists, comparing our technique against other state-of-the-art image inpainting techniques and editing software for fine-tuning AI-generated imagery.

本文提出了一种基于潜在扩散模型的工具Diffusion Brush，用于对人工智能合成的图像进行高效的局部微调，在保留图像原始内容的同时，引入新的随机噪声模式以定位特定区域，通过与其他图像修复技术和编辑软件的比较，验证了我们这种方法的可用性和有效性。

扩散刷：基于潜在扩散模型的AI生成图像编辑工具