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GAMMA

GAMMA

Section: C Library Functions (3) Updated: 10 May 1991
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NAME

im_gammacorrect - carry out gamma correction  

SYNOPSIS

#include <vips/vips.h>

int im_gammacorrect(in, out, exponent)
IMAGE *in, *out;
double exponent;

 

DESCRIPTION

im_gammacorrect performs gamma correction to in. The result in written in out. The correction is carried out by creating a lookup table using the double exponent and mapping in through it. The exponent is applied on a ramp lut and the resultant lut is scaled. All channels of im are mapped through the lookup table.  

SEE ALSO

im_histgr(3), im_heq(3), im_histeq(3), im_identity(3), im_maplut(3)  

COPYRIGHT

N. Dessipris  

AUTHOR

N. Dessipris - 10/05/1991


 

Index

NAME
SYNOPSIS
DESCRIPTION
SEE ALSO
COPYRIGHT
AUTHOR

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