Euler a Sampler

Euler ancestral (Euler a) sampler is similar to Euler’s sampler. But at each step, it subtracts more noise than it should and adds some random noise back to match the noise schedule. The denoised image depends on the specific noise added in the previous steps. So it is an ancestral sampler, in the sense that the path the image denoises depends on the specific random noises added in each step. The result would be different if you were to do it again.