User Manual - pancroma

33. Pan Sharpen Batch File Processing________________________________________________________________PANCROMA TM also offers the ability to pan sharpen GeoTiff or L1G files in abatch-wise mode. This can be very useful if you need to pan sharpen a largenumber of files especially on a slower computer. In this case you can queue upthe input Landsat (or SPOT) files and let the program run unattended orovernight.You can process either Landsat or SPOT (2X) band ratios in any of the standardPANCROMA TM input file formats. Alternatively you can process standard DigitalGlobe (4X) band ratios as long as the input files are GeoTiff format.The procedure is very similar to the process described in the previous section forbatch processing RGB color composite files. Start by selecting ‘Pan Sharpen’ |‘Batch Process Pan Sharpen Files’ | ‘Batch Process’ and then select either‘Batch Process Four Files Standard Method’, ‘Batch Process Five Files XIONGAlgorithm’ or ‘Batch Process Five Files AJISANE Algorithm’. The first pansharpens the three visible band files plus the panchromatic file while the lattertwo pan sharpen visible band files, the panchromatic file plus the NIR band usingthe XIONG or AJISANE algorithms. If you are pan sharpening four files, inputthem in the normal order: blue, green, red, and panchromatic. If you are pansharpening five files, input blue, green, red, panchromatic and NIR.IMPORTANT NOTE: You must open the files in the specified order or an errormessage will result.Select the ‘Add File’ button. A familiar Windows open dialog box will appear thatwill allow you to browse to the directory where your files are stored. After doingso, select the first (blue) band and select ‘Open’ . The first band file will beadded to the queue and its name will appear in the text box of the data entrydialog box.Successively add groups of four band files, i.e. the three color bands plus thepanchromatic band. When you have added all of your groups, select ‘Save’ fromthe batch entry form. (The ‘Save’ button will only be enabled after every fourthfile entry.) When the save dialog appears, enter or select a root output file name.This name will again be the root name to which a run number will be appendedafter each run.You can choose either JPEG, TIF or PNG format. As mentioned in previoussections, beware of JPEG format as computers with lesser memory resourceswill throw an ‘out of memory’ exception when processing full size Landsat files.Use PNG format instead if this occurs. If you wish to set the image processingparameters, check the ‘Activate Image Processing Routines’ check box.90