User Manual - pancroma

RapidEye ® Point Spectrum Generator TMThe Rapideye Point Spectrum Generator TM accepts RapidEye bands 1, 2,3,4,and 5 in bundled GeoTiff 16-bit format. To use the utility, select ‘SpectralAnalysis’ | ‘RapidEye Point Spectrum Generator’ | ‘Five 16-Bit (Bundled)GeoTiffFile’. The Point Spectrum Data Entry box will be presented as described in theprevious sections. Select the single band or composite bands that you wish touse to display for selecting your target points. You must also input the SolarElevation Angle and Acquisition Date from the RapidEye metadata. Thereflectances will be computed and the spectrum displayed. As is usual, thereflecances will be saved and automatically inserted into the Spectral Criteriaform for subsequent use by the PANCROMA TM Spectral Analyzer utility.MODIS Point Spectrum Generator TMThe MODIS Point Spectrum Generator TM accepts MODIS Surface Reflectancebands 1, 2,3,4,5, 6 and 7 in bundled HDF 16-bit format. These are the MODIStype ‘A1’ and ‘GA’ data products. To use the utility, first open the singlebundled HDF file. The single data file will contain all seven MODIS bands.select ‘Spectral Analysis’ | ‘MODIS Point Spectrum Generator’ | ‘Seven 16-Bit(Bundled) HDF File’. The Point Spectrum Data Entry box will be presented asdescribed in the previous sections. Select the single band or composite bandsthat you wish to use to display for selecting your target points. No SolarElevation Angle, Acquisition Date or other metadata is required since these filescontain processed surface reflectance data. The spectrum will be computed anddisplayed. As is usual, the spectrum will be saved and automatically insertedinto the Spectral Criteria form for subsequent use by the PANCROMA TM SpectralAnalyzer utility.Point Spectrum Zoom ToolThe above sections have described the PANCROMA TM Point Spectrum tool forgenerating spectral data from selected pixels in multispectral data sets. It isoften helpful to be able to zoom into an image in order to identify and selectpixels of interest to add to the Point Spectrum list. PANCROMA TM has a utilityfor doing this. In order to use the zoom tool, open your multispectral images asdescribed in the previous articles describing the Point Spectrum generator TM .When the Point Spectrum Form becomes visible, you will see two radio buttonslabeled ‘Zoom Enabled’ and ‘Zoom Disabled’, as shown below.233