Management of NO_DATA in BandMath
Short summary of the requested feature
When appliyin the BandMath application, the result of an operation with a NO_DATA pixel should return another NO_DATA.
Exemple : im1.tif = input image with all pixels as "No_DATA" (NoData Value=-32768)
otbcli_BandMath -il im1.tif -out output.tif -exp 'im1b1+5'
Output.tif has the value 5 everywhere