Specifications

Intel
®
Image Processing Library Reference Manual
11-22
11
GetBilinearBound
Computes the bounding
rectangle for ROI transformed
by iplWarpBilinear.
void iplGetBilinearBound(IplImage* image , const double
coeffs [2][4], double rect [2][2]);
image The image to be passed to iplWarpBilinear().
coeffs The bilinear transform coefficients.
rect Output array: the coordinates of vertices of the
rectangle bounding the figure to which
iplWarpBilinear() maps image ’s ROI.
Discussion
The function iplGetBilinearBound() computes the coordinates of
vertices of the smallest possible rectangle with horizontal and vertical sides
that bounds the figure to which
iplWarpBilinear() maps image ’s ROI.
GetBilinearQuad
Computes the quadrangle to
which the image ROI would be
mapped by iplWarpBilinear.
void iplGetBilinearQuad(IplImage* image , const double
coeffs [2][4], double quad [4][2]);
image The image to be passed to iplWarpBilinear().
coeffs The bilinear transform coefficients.