Developer Reference

  • 2020
  • 07/15/2020
  • Public Content
Contents

UndistortRadial

Corrects radial distortions of the single image.

Syntax

IppStatus ippiUndistortRadial_<mod>(const Ipp<datatype>*
pSrc
, int
srcStep
, Ipp<datatype>*
pDst
, int
dstStep
, IppiSize
roiSize
, Ipp32f
fx
, Ipp32f
fy
, Ipp32f
cx
, Ipp32f
cy
, Ipp32f
k1
, Ipp32f
k2
, Ipp8u*
pBuffer
);
Supported values for
mod
:
8u_C1R
16u_C1R
32f_C1R
8u_C3R
16u_C3R
32f_C3R
Include Files
ippcv.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
,
ippi.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
,
ippi.lib
Parameters
pSrc
Pointer to the ROI in the source distorted image.
srcStep
Distance in bytes between starts of consecutive lines in the source image.
pDst
Pointer to the ROI in the destination corrected image.
dstStep
Distance in bytes between starts of consecutive lines in the destination image.
roiSize
Size of source and destination images ROI in pixels.
fx
Focal lengths along the x axis.
fy
Focal lengths along the y axis.
cx
x-coordinate of the principal point.
cy
y-coordinate of the principal point.
k1
First coefficient of radial distortion.
k2
Second coefficient of radial distortion.
pBuffer
Pointer to the external buffer.
Description
This function operates with ROI (see Regions of Interest in Intel IPP).
This function corrects radial distortions of the single source image
pSrc
and stores corrected image in the
pDst
. Correction is performed accounting camera parameters
fx
,
fy
,
cx
,
cy
and radial distortion parameters
k1
,
k2
. The function can also pass the pointer to the external buffer
pBuffer
whose size should be computed previously using the function
ippiUndistortGetSize
. If a null pointer is passed, slower computations without an external buffer will be performed.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error if
pSrc
or
pDst
is
NULL
.
ippStsSizeErr
Indicates an error condition if
roiSize
has a field with zero or negative value.
ippStsStepErr
Indicates an error condition if
srcStep
is less than
roiSize.width * <pixelSize>
, or
dstStep
is less than
roiSize.width * <pixelSize>
.
ippStsNotEvenStepErr
Indicates an error condition if one of the step values is not divisible by 4 for floating-point images, or by 2 for short-integer images.
ippStsBadArgErr
Indicates an error if
fx
or
fy
is equal to 0.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804