User Manual - pancroma

common areas of both scenes. See the Instruction Manual for more informationon this feature. When you have successfully subsetted the second set, you cansave it as before by selecting 'File' | 'Save Subset Images' | 'GeoTiff andsupplying a base file name like 'adjust'. Select 'Close Graphics Window andReset'.You now have two sets of subsetted images that have the same corner latitudeand longitude coordinates but probably have different row and column sizes.Since the subsequent operations require consistent row and column values, youmust resize the larger file set down to match the smaller one. To do this select'File' | 'Open' and alternatively hover over your Reference and Adjust band files.The size of the tiff files will be reported at the tool tip. Note the row and columndimensions of the smaller set and open the larger four multispectral bands. Note:DO NOT open the panchromatic band at this time. Select 'Pre Process' | 'ResizeImages' | 'Resize Four Images'. When the images and the Resize Image DataEntry box becomes visible, enter the row and column dimensions of the smallerfile set and click 'OK'. After the images are resized, select 'File' | 'Save SubsetImages' | 'GeoTiff and supply a base file name like 'resizedAdjust'. Select 'CloseGraphics Window and Reset'.The final step before gap filling is to separately resize the larger of the twopanchromatic bands to match the smaller. Again select 'File' | 'Open' andalternatively hover over your Reference and Adjust panchromatic band files todetermine and record the row and column count of the smaller set. (Note: the rowand column sizes for the two panchromatic bands must be consistent with bothsets of multispectral bands, i.e. exactly double AND match each other. If this isnot the case additional resizing may be necessary.) Open the larger of the twofiles and select 'Pre Process' | 'Resize Images' | 'Resize One Image'. When theimages and the Resize Image Data Entry box becomes visible, enter the row andcolumn dimensions of the smaller file set and click 'OK'. After the images areresized, select 'File' | 'Save Grayscale Image' | 'GeoTiff and supply anappropriate file name like 'resizedReferneceBand4'. Select 'Close GraphicsWindow and Reset'. Select 'Close Graphics Window and Reset'.You should now have two matched sets of five file sets each, one with gaps(Reference set) and one without (Adjust set). The next step is to fill the gaps.This is done exactly as described in previous tutorials and in the InstructionManual. Open the files pair-wise, first a Reference band (one with gaps) and thenthe corresponding Adjust band (one without gaps.) For example, start withreferenceBand1 and resizedAdjustBand1 (or whatever you naming conventionwas.) Select 'Gap Fill' | 'Gap Fill Hayes Interpolation Method' or 'Gap Fill' | 'GapFill Transfer Method' If you choose the Hayes method, a Gap Fill Data Form willappear. You can then select the algorithm parameters: 'Search Extents', the 'GapThreshold' and the 'Comparison Radius'. Select 'OK'. After the file is processed,save the gap filled band by selecting 'File' | 'Save Grayscale Image' | 'GeoTiff andsupply an appropriate file name like 'gapBand1'. Repeat the process four more346