squareRoot

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Name

squareRoot - take the square root of each pixel value

Syntax

 #include <xite/arithmetic.h>

 int squareRoot( IBAND input, IBAND output,
    double scale );

Description

squareRoot places the square root of the input band into the output band: 

 output(x,y) = sqrt(input(x,y)) * scale

Only the largest rectangle common to the two bands is handled.

Accepts all pixel types except complex and double complex. Input and output must have the same pixel type, otherwise use convertBiff.

If the result is outside the domain of the actual pixel type, the nearest possible value is returned.

Identical arguments for input and output are allowed.

Return value

 0 => ok
 1 => Illegal combination of pixel types
 2 => Illegal pixel type

See also

squareRoot(1), square(3), power(3), absValue(3), phase(3), imag(3), real(3), scale(3), multiply(3), divide(3), convertBand(3)

Author

Tor Lønnestad, BLAB, Ifi, UiO

Id

$Id: squareRoot.c,v 1.34 1997/05/27 14:46:24 svein Exp $