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       im_affine - apply an affine transform to an image


       #include <vips/vips.h>

       int im_affine(in, out, a, b, c, d, dx, dy, x, y, w, h)
       IMAGE *in, *out;
       double a, b, c, d, dx, dy;
       int x, y;
       int w, h;


       This function is deprecated. See im_affine(3) for the replacement.

       im_affine(3)  applies an affine transformation on the image held by the
       IMAGE descriptor in and puts the result at the location pointed by  the
       IMAGE  descriptor  out.  in many have any number of bands, be any size,
       and have any non-complex type.

       The transformation is described by a, b, c, d, dx, dy.  The point (x,y)
       in the input is mapped onto point (X,Y) in the output by

        X = a * x + b * y + dx
        Y = c * x + d * y + dy

       The area of the output image given by w, h, x, y is generated. (0,0) is
       the position of the  transformed  top-left-hand  corner  of  the  input
       image.   Function  im_affine  resamples  the  transformed  image  using
       bilinear interpolation.


       The functions return 0 on success and -1 on error.



                               21 December 1999