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