Method _predict_eps_from_xstart

diffusion/gaussian_diffusion.py:345–348

(self, x_t, t, pred_xstart)

        )

    def _predict_eps_from_xstart(self, x_t, t, pred_xstart):
        return (
            _extract_into_tensor(self.sqrt_recip_alphas_cumprod, t, x_t.shape) * x_t - pred_xstart
        ) / _extract_into_tensor(self.sqrt_recipm1_alphas_cumprod, t, x_t.shape)

    def condition_mean(self, cond_fn, p_mean_var, x, t, model_kwargs=None):
        """