BUG: do not throw a warning when the computed number of region is 1 (a warning is still thown if a common number of division cannot be found)
BUG: do not throw a warning when the computed number of region is 1 (a warning is still thown if a common number of division cannot be found)

orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB