1IM_SINES(3)                Library Functions Manual                IM_SINES(3)
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NAME

6       im_sines - creates a spatial sine wave form
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SYNOPSIS

9       #include <vips/vips.h>
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11       int im_sines(image, xsize, ysize, horfreq, verfreq)
12       IMAGE *image;
13       int xsize, ysize;
14       double horfreq, verfreq;
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DESCRIPTION

17       im_sines() creates a float one band image of the a sine waveform in two
18       dimensions.  The sizes of the created image are xsize  by  ysize.   The
19       number of horizontal and vertical spatial frequencies are determined by
20       the variables horfreq and verfreq respectively.  The  function  is  the
21       base for creating displayable sine waves and square waves in two dimen‐
22       sions.
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RETURN VALUE

25       The function returns 0 on success and -1 on error.
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SEE ALSO

28       im_grey(3).
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31       N. Dessipris
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AUTHOR

34       N. Dessipris - 10/05/1991
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38                                  10 May 1991                      IM_SINES(3)
Impressum