19 lines
502 B
Groff
19 lines
502 B
Groff
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.TH IM_ABS 3 "25 April 1991"
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.SH NAME
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im_abs \- finds the absolute value or the magnitude of an image
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.SH SYNOPSIS
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#include <vips/vips.h>
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int im_abs( in, out )
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.br
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IMAGE *in, *out;
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.SH DESCRIPTION
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.B im_abs(3)
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finds the absolute value of an image. Copy for UNSIGNED types, negate
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for int types, fabs(3) for float types, and calculate modulus for
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complex types. Any size, any number of bands.
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.SH RETURN VALUE
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The function returns 0 on success and -1 on error.
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.SH SEE ALSO
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im_exp10tra(3), im_sign(3)
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