Change the used gaussian filter, the current one makes the application crash with non signed data
Change the used gaussian filter, the current one makes the application crash with non signed data

rdebroiz/medInria-public,aabadie/medInria-public,aabadie/medInria-public,aabadie/medInria-public,NicolasSchnitzler/medInria-public,rdebroiz/medInria-public,NicolasSchnitzler/medInria-public,rdebroiz/medInria-public,NicolasSchnitzler/medInria-public