I see. That makes sense. Thanks for the detailed explanation.
Just to provide some context, my objective was to actually align two sets of images. One from 2014 and one from 2016 so that I can do Change Detection on them. However when I tried to do this via OTB, it said the images were not in the same physical space.
2021-05-20 13:28:54 (FATAL) MultivariateAlterationDetector: itk::ERROR: MultivariateAlterationDetectorImageFilter(0x7f0f9801fdb0): Inputs do not occupy the same physical space!
InputImage Origin: [7.8067100e+05, 2.5839550e+06], InputImage_1 Origin: [7.7809500e+05, 2.5808890e+06]
Tolerance: 2.0000000e-06
So I thought I had to co-register my images to make it work. We actually had a discussion previously here regarding a similar issue.
So if this is not the way to go, how can I prepare my two tiffs so that it will work with OTB’s change detection?