cc [ flag... ] file... –lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageAffineTable_Fp(mlib_image *dst, const mlib_image *src, const mlib_d64 *mtx, const void *interp_table, mlib_edge edge);
The mlib_ImageAffineTable_Fp() function does affine transformation on a floating-point image with table-driven interpolation.
The following equation represents the affine transformation:
xd = a*xs + b*ys + tx yd = c*xs + d*ys + ty
where a point with coordinates (xs, ys) in the source image is mapped to a point with coordinates (xd, yd) in the destination image.
The data type of the images can be MLIB_FLOAT or MLIB_DOUBLE.
The width and height of the destination image can be different from the width and height of the source image.
The center of the upper-left corner pixel of an image is located at (0.5, 0.5).
The function takes the following arguments:
Pointer to destination image.
Pointer to source image.
Transformation matrix. mtx holds a; mtx holds b; mtx holds tx; mtx holds c; mtx holds d; mtx holds ty.
Pointer to an interpolation table. The table is created by the mlib_ImageInterpTableCreate() function.
Type of edge condition. It can be one of the following:
MLIB_EDGE_DST_NO_WRITE MLIB_EDGE_DST_FILL_ZERO MLIB_EDGE_OP_NEAREST MLIB_EDGE_SRC_EXTEND MLIB_EDGE_SRC_PADDED
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes: