/******* Rotate *******/
func (img *Image) RotateTo(dest *Image, angle float64) {
dest.InitializeAs(img)
center := C.CvPoint2D32f{C.float(img.Size().Width / 2), C.float(img.Size().Height / 2)}
var rot *C.CvMat = C.cvCreateMat(2, 3, C.CV_32F)
defer C.cvReleaseMat(&rot)
C.cv2DRotationMatrix(center, C.double(angle), C.double(1.0), rot)
C.cvWarpAffine(img.ptr, dest.ptr, rot, C.CV_INTER_LINEAR+C.CV_WARP_FILL_OUTLIERS, C.cvScalarAll(C.double(0.0)))
}
/* Allocates and initializes CvMat header and allocates data */
func CreateMat(rows, cols, type_ int) *Mat {
mat := C.cvCreateMat(
C.int(rows), C.int(cols), C.int(type_),
)
return (*Mat)(mat)
}