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IM_INVERT

IM_INVERT

Section: C Library Functions (3) Updated: 11 April 1990
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NAME

im_invert - inverts an image pointed by an image descriptor.  

SYNOPSIS

#include <vips/vips.h>

int im_invert(in, out)
IMAGE *in, *out;  

DESCRIPTION

im_invert inverts the image held by image descriptor in and writes the result on the image descriptor out. The function works on FMTUCHAR images only. The result at point x of the input image is 255-x at the output image. Input can have any no of channels.

  This is not a generally useful program -- it is included as an example of a very simple new-style IO function. Feel the power of the source, Luke!  

RETURN VALUE

The function returns 0 on success and -1 on error.  

SEE ALSO

im_add(3), im_lintra(3), im_multiply(3).  

AUTHOR

J. Cupitt - 21/7/93


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO
AUTHOR

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Time: 21:48:20 GMT, April 16, 2011