I generated several templates with the template-generating algorithm based on a grayscale satellite image and training data. I generated templates using the mean but also created templates using the group option.

After exporting the templates I noticed that the templates generated with several subgroups contain values from about minus 25 to 25 (depending on the template). The mean template contains 'normal' values within the range of the satellite image and only positive values.

Does someone know why these negative values appear and is it possible to rescale them.



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