Changsun Lee

ContrastiveCFG: Guiding Diffusion Sampling by Contrasting Positive and Negative Concepts

As Classifier-Free Guidance (CFG) has proven effective in conditional diffusion model sampling for improved condition alignment, many applications use a negated CFG term as a Negative Prompting (NP) to filter out unwanted features from samples. However, simply negating CFG guidance creates an invert…