We present an implementation of the matched-filter technique to detect tidal tails of globular clusters .
The method was tested using SDSS data for the globular cluster Palomar 5 revealing its well known tidal tails .
We also ran a simulation of a globular cluster with a tidal tail where we successfully recover the tails for a cluster at the same position and with the same characteristics of NGC 2298 .
Based on the simulation we estimate that the matched-filter increases the contrast of the tail relative to the background of stars by a factor of 2.5 for the case of NGC 2298 .
We also present the photometry of the globular cluster NGC 2298 using the MOSAIC2 camera installed on the CTIO 4m telescope .
The photometry covers \sim 3 deg ^ { 2 } reaching V \sim 23 .
A fit of a King profile to the radial density profile of NGC 2298 shows that this cluster has a tidal radius of 15.91 \arcmin \pm 1.07 \arcmin which is twice as in the literature .
The application of the matched-filter to NGC 2298 reveals several extra-tidal structures , including a leading and trailing tail .
We also find that NGC 2298 has extra-tidal structures stretching towards and against the Galactic disk , suggesting strong tidal interaction .
Finally , we assess how the matched-filter performs when applied to a globular cluster with and without mass segregation taken into account .
We find that disregarding the effects of mass segregation may significantly reduce the detection limit of the matched-filter .