User Manual - pancroma

GeoreferencingPANCROMA TM has a utility for simple georeferencing of an ungeoreferencedimage when North is up. That is, if it is known that the edges of theungeoreferenced image are aligned with true north, then the utility can be used tocreate a GeoTiff image with rudimentary georeferencing. The utility works forgrayscale images only.To use the utility, open a grayscale image by selecting ‘File’ | ‘Open’. Thendisplay the grayscale image by selecting ‘DisplayOne File’ and the submenuselection appropriate to your input image. After the image is displayed, select‘Post Process’ | ‘Georeference’ | ‘Enter Corner Coordinates and Scale’. TheGeoreferencing Form will become visible.Enter the corner UTM coordinates. (Note enter a negative number for theSouthern Hemisphere.) Enter the xScale and yScale values (these are theresolutions, i.e. the number of meters per pixel.) Select the datum and the UTMzone from the drop down menus. When you click ‘OK’ the corner coordinates willbe computed. Save your file as a GeoTiff to preserve the computed metadata.Compute Color CoveragePANCROMA TM has a utility for computing how much of an image is grayscaleand how much is colored. This may be useful in post processing your processedimages from the Spectral Analyzer Euclidean Distance Fraction or Spectral AngleFraction plots. The coverage is computed during processing, but you may needto run it again afterwards.218