cc [ flag... ] file... –lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageErode8(mlib_image *dst, const mlib_image *src);
The mlib_ImageErode8() function performs an erode operation on an image by using all eight of each pixel's neighbors. The source and destination images must be single-channel images. The data type can be MLIB_BIT, MLIB_BYTE, MLIB_SHORT, MLIB_USHORT, or MLIB_INT.
For 8-neighbor binary images, it uses the following equation:
dst[x][y][0] = AND{ src[p][q][0], x-1 ≤ p ≤ x+1; y-1 ≤ q ≤ y+1 }
For 8-neighbor grayscale images, it uses the following equation:
dst[x][y][0] = MIN{ src[p][q][0], x-1 ≤ p ≤ x+1; y-1 ≤ q ≤ y+1 }
where x = 1, ..., w-2; y = 1, ..., h-2.
The function takes the following arguments:
Pointer to destination image.
Pointer to source image.
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_ImageErode4(3MLIB), mlib_ImageErode4_Fp(3MLIB), mlib_ImageErode8_Fp(3MLIB), attributes(5)