The text-to-image synthesis by diffusion models has recently shown remarkable performance in generating high-quality images. Although performs well for simple texts, the models may get confused when faced with complex texts that contain multiple objects or spatial relationships. To get the desired images, a feasible way is to manually adjust the textual descriptions, i.e., narrating the texts or adding some words, which is labor-consuming. In this paper, we propose a framework to learn the proper textual descriptions for diffusion models through prompt learning. By utilizing the quality guidance and the semantic guidance derived from the pre-trained diffusion model, our method can effectively learn the prompts to improve the matches between the input text and the generated images. Extensive experiments and analyses have validated the effectiveness of the proposed method.

通过prompt学习，我们提出了一种学习扩散模型适当文本描述的框架，通过利用预训练扩散模型导出的质量指导和语义指导，我们的方法可以有效地学习提示，从而提高输入文本和生成图像之间的匹配。通过广泛的实验和分析，验证了所提方法的有效性。

寻找咒语：通过提示工程实现精确的文本到图像扩散合成