How to use the ippcp library correctly
I have used the ippcp library to check out the performance of SM3 and SM4, and compared them with the lasted openssl version. The result is that the ippcp library did not perform much better than...
View Article2D MultiLevel Wavelet Question
Hi,I'm trying to correctly implement the Wavelet Decomposition/Reconstruction and I'm having trouble getting it working for 2D images with 'n' levels of decomposition due to the lack of documentation...
View ArticleHow can I get the old sample code of ipp8？
Hi, I want to use the Speech Codec of IPP in Windows, but I can't find the sample code (w_ipp_8.0.0.005_legacy_samples.zip) in my product list, can anyone send the download url to me？ My email address...
View ArticleIpprFilterMedianSpec
Hi,I am trying to use the 3D filter functions (specifically the median filter); but I can not create a IpprFilterMedianSpec variable as the compiler complains that it is an incomplete type. I've...
View ArticleHow to calculate SHA for unsigned int instead of string with ippcp
I am trying to calculate SHA256 and SHA384 for message of type unsigned integer, but from the Intel® Integrated PerformancePrimitives Cryptography Developer Reference I see that all the relevant...
View ArticleFilterBoxBorderGetBufferSize is not monotonically increasing with image size
Hello,I am having some trouble with the buffer sizes returned by FilterBoxBorderGetBufferSize.According to the documentation, roiSize is the "Maximum size of the destination image ROI". As I understand...
View Articlelibippcp.a relocation error
Good day,I want to link libippcp.a into a shared library and get the following error:/usr/bin/ld: /opt/intel/ippcp/lib/intel64/libippcp.a(pcpbnumulschoolsrvl9.asm.o): relocation R_X86_64_PC32 against...
View ArticleIppResize with changing Src Roi + fixed destination Roi without full tear down
Is it possible to have the Source Roi changing on every processing cycle but the Destination Size to be fixed without requiring a full reinitialization of all setup parameters. Ideally we want our...
View ArticlePerformance in IPP Crypto vs. OpenSSL with static library
I`ve compare the SM3/4 performance of the ippcp and openssl. Here is the test result : sm3: sm4:...
View ArticleIntell IPP library for Xamarin Android
Hi, I have a question?How to use Intel IPP library in Xamarin android environment?I need some of the dlls in the Intel IPP for signal Processing.Can you please provide some guidance on this?
View ArticleHow to clamp/clip some data?
Hi there,I'd like to take advantage of IPP library and vectorization, applying a clamp/clip to an array of double (or better, to a sum of each item in two arrays of double).Actual code is somethings...
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Mismatch between legacy90ippiFilterColumn_32f_C1R(ipp legacy) and...
Hi,I was using ippiFilterColumn_32_C1R earlier now currently upgrading with ipp2017. I have replaced ippiFilterColumn_32_C1R with legacy90ippiFilterColumn_32_C1R API's and result is not matching, while...
View ArticleHeap corruption in ippiWarpPerspectiveLinear_8u_C1R
Hello.It seems the ipp 2018.3.210 contains a bug in the ippiWarpPerspectiveLinear_8u_C1R function.The following sequence of code generates exception (Unhandled exception at 0x776DE9A3 (ntdll.dll) in...
View ArticleippiFilterGaussianBorder
The ippiFilterGaussianBorder puzzles me, notably the sigma parameter. Compared to doing the Gaussian Blur with a matrix, ippiFilterGaussianBorder gives me what looks like unprecise results. This is...
View ArticleIs there a nopic version of the IPP Legacy libraries?
We use the IPP Speech compression libraries in one of our pieces of software.This software runs in kernel mode on linux.I have been tasked with bringing the software (previously using V7 IPP) up to...
View Article5th moment of ippiGetHuMoments_64f ?
Hi,I am comparing results of ippiGetHuMoments_64f() with alternative implementation. There are equal results except for 5th moment (hu[4]). What can be cause of this? Does ippiGetHuMoments_64f() uses...
View ArticleROI size limitation
Hi, All I am trying to copy an image with image width 44672 and image height 51480. I am trying to use ippiCopy_8u with this size, but it does not copy successfully, although the return code is...
View ArticleWhat's the advantage of using IPP Data Types?
Hi,I see that if I use IPP functions (i.e. ippsMulC_64f_I) with Ipp64f or double, it seems the same. No warnings, same performances.What's the benefit of using the IPP's native Data Types?Thanks
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Intel Transcoder failed : Error while opening encoder for output stream #0:0...
I want to reduce bandwidth usage by using Intel Transcoding.I was given a tutorial or steps by ezserver support:http://www.ezhometech.com/document/intel_ffmpeg.txtAfter I search on google, it turned...
View ArticleFIR filter with complex data and real filter coefficients
The most common case I have using the FIR filtering functions is with complex time series data and real coefficients. However all of the functions I've found to use on complex data have complex filter...
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