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IRADIAL

Specifies a circular region of the image and plots an integrated radial distribution in the next zone. The bin width of the distribution is equal to the image pixel size, although this can be reduced using the hidden parameter SAMPLE (eg. SAMPLE equal to 2 halves the radial bin size). The centre and radius of the circle are specified either by cursor or parameter input depending on the current mode (change mode with command IMODE).

The data units are normalised to be per pixel. To convert the units of a saved output file to counts/square axis unit, do the following :

  ICL> ISAVE1D Filename
  ICL> HGET Filename.axis(1).data_array.scale VALUE (SCALE)
  ICL> SC2 = SCALE * SCALE
  ICL> ARITHMETIC filename (SC2) OPER=/ OUT=Ofilename
  ICL> HMODIFY OFILENAME.UNITS "Counts/square whatever"

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Next: Parameters Up: Image processing commands Prev: Examples