GALACTICNUCLEUS: A high-angular-resolution JHKs imaging survey of the Galactic centre - IV. Extinction maps and de-reddened photometryF. Nogueras-Lara, R. Schödel and N. NeumayerA&A, 653 (2021) A133DOI: https://doi.org/10.1051/0004-6361/202140996