Replacement for ippiRotate_32f_C1R

[ChristinaLabay]

We have recently updated our ippi version, and need to replace ippiRotate_32f_C1R. I have found this post, https://community.intel.com/t5/Intel-Integrated-Performance/How-to-replace-ipp-functions-ippiRotate-32f-C1R-and/td-p/1082539, but the links listed are no longer valid. From my understanding, we will need to use a combination of ippiWarpAffine functions and the ippiRotateTranslate functions. I found a sample document for ippiRotate_8u_C3R (attached), and attempted to implement a solution from that, but we are getting different results than our previous version.

This is what we have written as our replacement:

    IppStatus status;

    IppiWarpSpec* pSpec = 0;

    double coeffs[2][3] = {0};

    int specSize = 0, initSize = 0, bufSize = 0;

    Ipp32f* pBuffer  = 0;

    IppiPoint dstOffset = {0, 0};

    Ipp64f pBorderValue[1] = {0};

    status = ippiGetRotateTransform (angle, xShift, yShift, (double(*)[3])coeffs);

    if(status != ippStsNoErr)

      return status;

    status = ippiWarpAffineGetSize(srcSize, dstSize, ipp32f, coeffs, ippLinear, ippWarpForward, ippBorderRepl, &specSize, &initSize);

    if(status != ippStsNoErr)

      return status;

    pSpec = (IppiWarpSpec*)ippsMalloc_32f(specSize);

    status = ippiWarpAffineLinearInit(srcSize, dstSize, ipp32f, coeffs, ippWarpForward, 1, ippBorderRepl, pBorderValue, 0, pSpec);

    if(status != ippStsNoErr)

    {

      ippsFree(pSpec);

      return status;

    }

    status = ippiWarpGetBufferSize(pSpec, dstSize, &bufSize);

    if(status != ippStsNoErr)

      return status;

    pBuffer = ippsMalloc_32f(bufSize);

    status = ippiWarpAffineLinear_32f_C1R(pSrc, srcStep, pDst, dstStep, dstOffset, dstSize, pSpec, pBuffer);

    ippsFree(pSpec);

    ippsFree(pBuffer);

[ArpitaP_Intel]

Hi ChristinaLabay,

Thanks for reaching out to us.

We are working on it internally. We will get back to you.

Regards,

Arpita

[Abhinav_S_Intel]

Hi Christina,

For ippiRotate_32f_C1R replacement, I am attaching a sample file Rotate.c to help you understand the usage of APIs.

We have a reference manual on how to substitute deprecated IPP functions:
https://software.intel.com/content/www/us/en/develop/documentation/ipp-dev-reference/top/volume-2-image-processing/appendix-c-removed-functions-for-image-and-video-processing.html

Let us know about your results.

-

Abhinav

[AbhishekD_Intel]

Hi,

Hope the provided solution worked for you. We will no longer monitor this thread. If you require any additional assistance from Intel, please start a new thread. 

Any further interaction in this thread will be considered community only.

Warm Regards,

Abhishek