Hi Julien (both), Thanks for the solution, it seems to work well (despite being quite verbose).
I will post any other question in the new forum. Thanks again to both, On Friday, February 1, 2019 at 5:00:14 AM UTC-3, Julien Michel wrote: > > Hi, > > > > We have a new forum, and questions should be best addressed here if > possible : > > > > https://forum.orfeo-toolbox.org/ > > > > Regarding your question, we have an issue running on this topic, it should > be fixed in a near future. > > > > https://gitlab.orfeo-toolbox.org/orfeotoolbox/otb/issues/1798 > > > > Regards, > > > > Julien > > > > *De :* [email protected] <javascript:> <[email protected] > <javascript:>> *De la part de* Julien Radoux > *Envoyé :* vendredi 1 février 2019 07:34 > *À :* otb-users <[email protected] <javascript:>> > *Objet :* [otb-users] Re: Is there any way to make Band Math ignore NA > values? > > > > hi, the workaround is quite heavy but works most of the case : testing > that you value are within a range: > > > > it wold be something like > > > > (((im1b1>-9999)and(im1b1<9999)?im1b1:0) + > (((im2b1>-9999)and(im2b1<9999))?im2b1) + .... > > > > if this does not work straight aways, try first with a gdalbuildvrt > -vrtnodata None > > > Le jeudi 31 janvier 2019 22:39:22 UTC+1, Álvaro Paredes a écrit : > > Hi everyone, > > > > I'm using otb BandMath to calculate some stats through several images, and > the problem that arises is that nodata values from the images are > interfering with results. > > Every image is a geotif of the same extent and resolution, but the > location of the NAs values are variable (due to clouds principally). If I > compute the sum or average of the images I end with and image full of NAs, > without any valid value (in all the images, there's at least one cell with > NAs). > > For example, I'm running: otbcli_BandMath -il im1.tif im2.tif > im3.tifim4.tif im5.tif im6.tif im7.tif im8.tif im9.tif im10.tif -out > test.tif -exp > "(im1b1+im2b1+im3b1+im4b1+im5b1+im6b1+im7b1+im8b1+im9b1+im10b1)" > > > > Is there any way to tell to the program to ignore nodata values or is > there a workaround to solve it? > > > > Regards, > > -- > This mailing will be abandoned soon in favor of a more friendly forum: > https://forum.orfeo-toolbox.org > Thanks to visit it for any question related to Orfeo Toolbox (OTB) usage, > or to check the OTB FAQ: > http://www.orfeo-toolbox.org/FAQ.html > --- > You received this message because you are subscribed to the Google Groups > "otb-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > For more options, visit https://groups.google.com/d/optout. > -- This mailing will be abandoned soon in favor of a more friendly forum: https://forum.orfeo-toolbox.org Thanks to visit it for any question related to Orfeo Toolbox (OTB) usage, or to check the OTB FAQ: http://www.orfeo-toolbox.org/FAQ.html --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
