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cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageMean_Fp(mlib_d64 *mean, const mlib_image *img);
The mlib_ImageMean_Fp() function computes the mean value of all the pixels in the image.
It uses the following equation:
1 w-1 h-1 mean[i] = ----- * SUM SUM img[x][y][i] w*h x=0 y=0
The function takes the following arguments:
mean
img
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes:
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mlib_ImageMean(3MLIB), mlib_ImageStdDev(3MLIB), mlib_ImageStdDev_Fp(3MLIB), attributes(5)