1IM_ABS(3) Library Functions Manual IM_ABS(3)
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6 im_abs - finds the absolute value or the magnitude of an image
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9 #include <vips/vips.h>
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11 int im_abs( in, out )
12 IMAGE *in, *out;
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15 im_abs() finds the absolute value of an image. Copy for UNSIGNED types,
16 negate for int types, fabs(3) for float types, and calculate modulus
17 for complex types. Any size, any number of bands.
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20 The function returns 0 on success and -1 on error.
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23 im_exp10tra(3), im_sign(3)
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27 25 April 1991 IM_ABS(3)