39 lines
991 B
Groff
39 lines
991 B
Groff
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.TH IM_MEAN_STD 3 "10 May 1991"
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.SH NAME
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im_mean_std_double_buffer, im_mean_std_int_buffer \- calculates the mean and the std of data held by a by an int or double buffer
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.SH SYNOPSIS
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.B #include <vips/vips.h>
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int im_mean_std_int_buffer(buf, size, mean, std)
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.br
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.B int *buf;
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.br
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.B int size;
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.br
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.B double *mean, *std;
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int im_mean_std_double_buffer(buf, size, mean, std)
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.br
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.B double *buf;
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.br
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.B int size;
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.br
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.B double *mean, *std;
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.SH DESCRIPTION
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im_mean_std_int_buffer() and im_mean_std_double_buffer()
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calculate the mean and the standard deviation (std) of data held by the
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integer or double buffer buf. The buffer has size elements. The results are
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returned to the locations pointed by mean and std.
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It is the responsibility of the calling function to ensure that there is
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enough data in the buffer.
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.SH RETURN VALUE
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Both functions returns 0 on success and -1 on error.
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.SH SEE\ ALSO
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im_avg(3), im_stats(3).
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.SH COPYRIGHT
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.br
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N. Dessipris
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.SH AUTHOR
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N. Dessipris \- 10/05/1991
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