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cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageSConv7x7_Fp(mlib_image *dst, const mlib_image *src, const mlib_d64 *hkernel, const mlib_d64 *vkernel, mlib_s32 cmask, mlib_edge edge);
The mlib_ImageSConv7x7_Fp() function performs a separable 7x7 convolution on the source image by using the user-supplied kernel.
It uses the following equation:
m-1-dm n-1-dn dst[x][y][i] = SUM SUM src[x+p][y+q][i]*h[p]*v[q] p=-dm q=-dn
where m = 7, n = 7, dm = (m - 1)/2 = 3, dn = (n - 1)/2 = 3.
The function takes the following arguments:
dst
src
hkernel
vkernel
cmask
edge
MLIB_EDGE_DST_NO_WRITE MLIB_EDGE_DST_FILL_ZERO MLIB_EDGE_DST_COPY_SRC MLIB_EDGE_SRC_EXTEND
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_ImageConv2x2(3MLIB), mlib_ImageConv2x2_Fp(3MLIB), mlib_ImageConv2x2Index(3MLIB), mlib_ImageConv3x3(3MLIB), mlib_ImageConv3x3_Fp(3MLIB), mlib_ImageConv3x3Index(3MLIB), mlib_ImageConv4x4(3MLIB), mlib_ImageConv4x4_Fp(3MLIB), mlib_ImageConv4x4Index(3MLIB), mlib_ImageConv5x5(3MLIB), mlib_ImageConv5x5_Fp(3MLIB), mlib_ImageConv5x5Index(3MLIB), mlib_ImageConv7x7(3MLIB), mlib_ImageConv7x7_Fp(3MLIB), mlib_ImageConv7x7Index(3MLIB), mlib_ImageConvKernelConvert(3MLIB), mlib_ImageConvMxN(3MLIB), mlib_ImageConvMxN_Fp(3MLIB), mlib_ImageConvMxNIndex(3MLIB), mlib_ImageConvolveMxN(3MLIB), mlib_ImageConvolveMxN_Fp(3MLIB), mlib_ImageSConv3x3(3MLIB), mlib_ImageSConv3x3_Fp(3MLIB), mlib_ImageSConv5x5(3MLIB), mlib_ImageSConv5x5_Fp(3MLIB), mlib_ImageSConv7x7(3MLIB), mlib_ImageSConvKernelConvert(3MLIB), attributes(5)