Hi Julien and Manuel, Yes, GetPhysicalGain appears to grab "AbsCalFactor" and the bias might be > set to 0, but I don't see where it grabs "effectiveBandwidth" from the > metadata. This is needed to convert to WV-2 multispectral bands to TOA > radiance. Again, see p.9 of >
Can anybody confirm if the missing 'effective bandwidth' has been integrated into the code now and the processing has been corrected? Maybe somebody can place a link to the code where the toa and toc computations are done. I can confirm that the official Digital Globe document cited by dcd provides the correct equations for WV2: > > http://www.digitalglobe.com/downloads/Radiometric_Use_of_WorldView-2_Imagery.pdf > With the current version of OTB (3.20.0) I receive maximum toa refectances of 1.0 for some WV2 bands. However, this seems to be wrong since 1.0 would mean 100 % of reflected light. Also the maximum toc values are for some bands larger and for some bands smaller than the maximum toa values. Concerning the bandID 'MS1', to my knowledge this ID refers to 4-band WV2 products while 'Multi' refers to the 8-band products. $-band products include only the bands blue, green, red and NIR and they are quite common. However, with OTB version 3.20.0 'MS1' is still not supported and must be manually changed. T -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/otb-users?hl=en --- 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/groups/opt_out.
