Power spectra for detector difference maps of Planck-HFI 857 GHz real data. For all detector pairs, power spectra are computed from detector difference maps for three distinct cases: the mapmaking of Planck-HFI 857 GHz real data using a classic destriping approach (CD), the mapmaking of Planck-HFI 857 GHz real data using SRoll2 to produce a direct fit of a synthetic FSL simulation as a template (SRoll2), and the mapmaking of Planck-HFI 857 GHz real data using 1000 iterations of the 2D Decoder CNN exploiting data augmentation to include interdetector residuals in the learning dataset (CNN2D-DA).