  The GALANTE optical photometric survey is observing the northern Galactic
plane and some adjacent regions using seven narrow- and intermediate-filters,
covering a total of 1618 square degrees. The survey has been designed with
multiple exposure times and at least two different air masses per field to
maximize its photometric dynamic range, comparable to that of Gaia, and ensure
the accuracy of its photometric calibration. The goal is to reach at least 1%
accuracy and precision in the seven bands for all stars brighter than AB
magnitude 17 while detecting fainter stars with lower values of the
signal-to-noise ratio.The main purposes of GALANTE are the identification and
study of extinguished O+B+WR stars, the derivation of their extinction
characteristics, and the cataloguing of F and G stars in the solar
neighbourhood. Its data will be also used for a variety of other stellar
studies and to generate a high-resolution continuum-free map of the H{\alpha}
emission in the Galactic plane. We describe the techniques and the pipeline
that are being used to process the data, including the basis of an innovative
calibration system based on Gaia DR2 and 2MASS photometry.
