BUG: fix bug in the TestHelper (didn't report any numerical differences if the baseline was 0)
BUG: fix bug in the TestHelper (didn't report any numerical differences if the baseline was 0)

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