KPG1_EXPOx

Takes the exponential to an arbitrary base of an array and its variance

Description:

This routine fills the output array pixels with the results of taking the exponential of the pixels of the input array to the base specified, i.e. New_value = Base ∗∗ Old_value. If the result is bigger than the maximum-allowed value then a bad pixel value is substituted in the output array.

If variance is present it is computed as: 2 New_Variance = Old_Variance ∗ ( New_value ∗ log Base )

Invocation

CALL KPG1_EXPOx( BAD, EL, INARR, VAR, INVAR, BASE, OUTARR, OUTVAR, NERR, NERRV, STATUS )

Arguments

BAD = LOGICAL (Given)
Whether to check for bad values in the input array.
EL = INTEGER (Given)
Number of elements in the input output arrays.
INARR( EL ) = ? (Given)
Array containing input image data.
VAR = LOGICAL (Given)
If .TRUE., there is a variance array to process.
INVAR( EL ) = ? (Given)
Array containing input variance data, when VAR = .TRUE..
BASE = DOUBLE PRECISION (Given)
Base of exponential to be used. It must be a positive number.
OUTARR( EL ) = ? (Write)
Array containing results of processing the input data.
OUTVAR( EL ) = ? (Write)
Array containing results of processing the input variance data, when VAR = .TRUE..
NERR = INTEGER (Returned)
Number of numerical errors which occurred while processing the data array.
NERRV = INTEGER (Returned)
Number of numerical errors which occurred while processing the variance array, when VAR = .TRUE..
STATUS = INTEGER (Given)
Global status value

Notes: