You generally like the checkpoint that is freely available, but its author set the noise offset value too high. Familiar situation? This VAE is designed to solve this problem. In the language of photography, it compresses the tone range histogram of generation from both sides closer to the center, the exposure hardly changes. In simple terms, it only changes the contrast, without affecting the brightness of the midtones. In fact, this is a regular vae-ft-mse-840000-ema-pruned, but with a number of mathematical transformations on its input and output layers.