I mean just a plot of DN (which would be reflectance in case the image has been calibrated) against wavelength (just band number is not enough because different systems have different spectral characteristics). By default, the x-axis could be band number, but a simple text file with wavelengths and bands for common systems would be enough (the user could easily add other non-common sensors) could be used to select the system that acquired the image within monteverdi. For example, in case of a Landsat-OLI image, the user would select Landsat-OLI and the plot made with those wavelengths. In short, similar to QGIS Value tool but with the option of displaying wavelength in the x axis An spectral power distribution would be very different. Agus
On Wed, Jan 20, 2016 at 10:44 AM, Poughon Victor <[email protected]> wrote: > >> I would really appreciate a tool for displaying signatures as a plot >> as you browse and click with the mouse >> over the image. As images become more multi and hyperspectral, seeing >> values is not enough. > > Do you mean the spectral power distribution? A bar plot of intensity as a > function of wavelength? With some local average maybe? > If so that's an good idea indeed. we should be careful about the y axis unit > though. > > Victor Poughon > > -- > -- > 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/d/optout. -- -- 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/d/optout.
