Specifications

Intel
®
Image Processing Library Reference Manual
11-18
11
GetAffineBound
Computes the bounding
rectangle for ROI transformed
by iplWarpAffine.
void iplGetAffineBound(IplImage* image , const double
coeffs [2][3], double rect [2][2]);
image The image to be passed to iplWarpAffine().
coeffs The iplWarpAffine() transform coefficients.
rect Output array: the coordinates of vertices of the
rectangle bounding the figure to which
iplWarpAffine() maps image ’s ROI.
Discussion
The function iplGetAffineBound() computes the coordinates of vertices
of the smallest possible rectangle with horizontal and vertical sides that
bounds the figure to which
iplWarpAffine() maps image ’s ROI.
GetAffineQuad
Computes the quadrangle to
which the image ROI would be
mapped by iplWarpAffine.
void iplGetAffineQuad(IplImage* image , const double
coeffs [2][3], double quad [4][2]);
image The image to be passed to iplWarpAffine().
coeffs The affine transform coefficients.