User Manual - pancroma

Analyzer. Doubling is done by first expanding the image and then interpolating it.The effective resolution of course does not change but the row and column countwill match those of the multispectral bands.To double a TIR (or any other) image, select ‘File’ | ‘Open’ and then ‘Preprocess’| ‘Resize Images’ | ‘Scale Landsat Thermal Image’. The file will be doubled anddisplayed. Save the grayscale image in GeoTiff format if you plan to use it formultispectral analysis. Gamma correction can be useful in converting Landsat 8data to pleasing RGB color images.Pixel ShiftThe Pixel Shift utility is a submenu selection under the ‘Resize Images’ menuselection. It allows you to shift your image North, South, East and/or West by aspecified number of pixels (from –6 to +6). This utility may be useful if you feelthat the PANCROMA automatic registration utilities need a little help, or if there isan underlying mismatch between multispectral bands and the panchromaticband, as can sometimes occurTo access this utility, select ‘File’ | ‘Open’ and then ‘Preprocess’ | ‘ResizeImages’ | ‘Pixel Shift’.172