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Text File  |  1989-05-13  |  548b  |  14 lines
  1. FLT8B1 28-SEP-83
  2. Choose one option:
  3.    low pass  = smoothing,
  4.    high pass = high frequency enhancement  
  5.           
  6. LPF:[] -Low pass filter (changing valid and non-valid data)
  7. LPFZ:[]-Low pass filter (changing non-valid data only)
  8. LPFV:[]-Low pass filter (changing valid data only)
  9. HPF:[] -High pass filter (changing only valid data)
  10. DIV:[] -High pass filter using divide option (changing only valid data)
  11. TRIM:[]-Doesn't perform any type of filtering operation; it's used to set to 0
  12.         or trim the edges of images
  13. (e.g., HPF) 
  14.