Comparison of different post-processing methods applied to fiducial and observed ADI sequences of PDS 70. Top: final image obtained after post-processing an ADI sequence containing only a disk model (left) with different methods: median-ADI, PCA-ADI considering one and nine principal components, and mustard (from left to right). Bottom: application of the same post-processing methods to the ADI data set from March 2019 obtained in the K1 filter (program 1100.C-0481(L)). The axis grids of both model reductions and observation are scaled identically. The color axis represents the raw flux restored from reductions.