Differently scaled exports from raster calculator

[AndyC]

We would like to be able to export the outputs of the raster calculator with the direct values, rather than rescaled values.

For example, when using the raster calculator we generate NDVI maps with attribute values ranging from +1 to -0. However, when we export these reflectance maps (e.g. as tif files), the attribute values are rescaled to 0-255. We then have to load these maps into another software to rescale them back to -1 to +1. It would be nice to be able to export the files we need directly from PhotoScan.

Thanks,
Andy & Dave