Warp Functions with Prior Initialization

This section describes the Intel® IPP warping functions that use the specification structure in operation. Before using these functions, you need to initialize the structure.

• Using Intel® IPP Warp Affine Functions with Prior Initialization
  
• Edge Smoothing
  
• GetAffineQuad
  Computes vertex coordinates of the quadrangle, to which the source ROI rectangle is mapped by the affine transform.
• GetAffineBound
  Computes the bounding rectangle for the source ROI transformed by the ippiWarpAffine function.
• GetAffineSrcRoi
  Computes ROI of an image for affine transform.
• GetAffineTransform
  Computes affine transform coefficients to map the source ROI to the quadrangle with the specified vertex coordinates
• GetRotateTransform
  Computes the affine coefficients for the rotation transform.
• GetRotateShift
  Computes shift values for rotation of an image around the specified center.
• WarpAffineGetSize
  Computes the size of the specification structure and the size of the external work buffer for the warp affine transform.
• WarpQuadGetSize
  Computes the size of the specification structure and the size of the temporary buffer for warping an arbitrary quadrangle in the source image to the quadrangle in the destination image.
• WarpGetBufferSize
  Computes the size of the work buffer for the warp transform.
• WarpAffineNearestInit
  Initializes the specification structure for image affine warping with the nearest neighbor interpolation method.
• WarpQuadNearestInit
  Initializes the specification structure for warping an arbitrary quadrangle in the source image to the quadrangle in the destination image with the nearest neighbor interpolation method.
• WarpAffineNearest
  Performs warp affine transformation of an image using the nearest neighbor interpolation method.
• WarpAffineLinearInit
  Initializes the specification structure for image affine warping with the linear interpolation method.
• WarpQuadLinearInit
  Initializes the specification structure for warping an arbitrary quadrangle in the source image to the quadrangle in the destination image with the linear interpolation method.
• WarpAffineLinear
  Performs warp affine transformation of an image using the linear interpolation method.
• WarpAffineCubicInit
  Initializes the specification structure for image affine warping with the cubic interpolation method.
• WarpQuadCubicInit
  Initializes the specification structure for warping an arbitrary quadrangle in the source image to the quadrangle in the destination image with the cubic interpolation method.
• WarpAffineCubic
  Performs warp affine transformation of an image using the cubic interpolation method.
• GetPerspectiveQuad
  Computes vertex coordinates of the quadrangle, to which the source ROI rectangle is mapped by the perspective transform.
• GetPerspectiveBound
  Computes the bounding rectangle for the source ROI transformed by the ippiWarpPerspective function.
• GetPerspectiveTransform
  Computes the perspective transform coefficients to map the source ROI to the quadrangle with the specified vertex coordinates.
• WarpGetRectInfinite
  Returns an infinite rectangle.
• WarpPerspectiveGetSize
  Computes the size of the specification structure and the size of the external work buffer for the warp perspective transform.
• WarpPerspectiveNearestInit
  Initializes the specification structure for image perspective warping with the nearest neighbor interpolation method.
• WarpPerspectiveNearest
  Performs warp perspective transformation of an image using the nearest neighbor interpolation method.
• WarpPerspectiveLinearInit
  Initializes the specification structure for image perspective warping with the linear interpolation method.
• WarpPerspectiveLinear
  Performs warp perspective transformation of an image using the linear interpolation method.
• WarpPerspectiveCubicInit
  Initializes the specification structure for image perspective warping with the cubic interpolation method.
• WarpPerspectiveCubic
  Performs warp perspective transformation of an image using the cubic interpolation method.