Multi-threading support missing for ippiCrossCorrNorm_32f_C1R (Version 2019...
I recently made a very late upgrade from IPP 6.1 to IPP 2019.5.281. I found out that the cross correlation API has gotten significantly slower compared to IPP 6.1, from 2-3ms to 5-6ms per run. I...
View ArticleIPP 2019 Update 2 Functional and Security Updates?
I am trying to determine how important it is to update to IPP 2019 Update 2 or later based on this text in the IPP 2019 Update 2 Release Notes:Intel® IPP Update 2 includes functional and security...
View ArticleOpticalFlowPyrLK feature points
The docs for OpticalFlowPyrLK don't explicitly state whether the pPrev array of initial coordinates of the feature-points is an input parameter or not. My impression however is that pPrev must be...
View ArticleIppiDilateBorder_8u_C1R
I want to perform dilation operation on an image using IppiDilateBorder_8u_C1R function. But I am not sure of how to define the parameters like IppiMorphState *pSpec and Ipp8u *pBuffer. required by the...
View ArticleAESEncryptCBC on a large files
Hi!I want to encrypt (or decrypt) large file.It is unreasonable/impossible to load the whole file into memory and process it by single AESEncryptCBC call.The more affordable way is to process that file...
View ArticleDownload intel IPP version 7 Library
How can i Download intel IPP version 7 Library? i am unable to find older versions Can anyone help me on this?Thank you in advanceTCE Open Date: Sunday, February 16, 2020 - 21:03
View ArticleIPP 2020.0.0 Gold - doesn't work on some older CPUs
we have upated our product to IPP 2020.0.0 Gold and we got some feedback in our Helpdesk system from customers who have problems on some older processorsi.e.xeon e3 1225 v3andi5-34??it seems, that the...
View ArticleCannot find ippsCrossCorr_64fc in 2020.0.166 distro
We are having trouble finding some features we used (in composer_xe_2013.2.146) in this new software distribution:Specifically, we are finding that...
View ArticleGradientVectorPrewitt/Scharr/Sobel
I have two suggestions related to the parameters of GradientVectorPrewitt, GradientVectorScharr and GradientVectorSobel.1. The functions are quite useful, for example in implementing non-linear...
View ArticleippiDeconvLR
I get nice results wit large numbers of iterations of ippiDeconvLR. However, because of the large number of iterations, it takes a long time and triggers the following questions:1. User-friendly...
View ArticleComposite ippi functions
When I need a sequence of ippi functions for a composite operation I could, of course, call those ippi functions in sequence. However, for large images that would be a rather bad usage of the CPU Ln...
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FFT Open MP
Greetings,I have problems with running IPP 2019 FFT with OpenMP internal parallelisation, I have already tried approach: https://software.intel.com/en-us/ipp-dev-guide-using-intel-integrated-pe..., but...
View ArticleIs there a way to still receive IPP 7.0?
I already know that there is no support, but I need the libraries to compile an old program to re-engineer the application. I can't change to a newer version because the libraries are mainly used by...
View ArticleBug in ippiGrayErodeBorder
The IPP Developer Reference documents that the border parameter of the functions ippiGrayErodeBorder_8u_C1R and ippiGrayErodeBorder_32f_C1R accepts ippBorderRepl as the only type of border.However, for...
View ArticleUnpack 12 bit image into 16 bit
Hi,I have an image given in 12 bit packed format (16 bit gray values but only 12 bits in use). Now I need to unpack it to 16 bit (padded with 4 zero bits). Is there any ipp function that does this...
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Wavelet transforms
I looked at ippiWTFwd and ippiWTInvInit for wavelet transforms. However, the IPP implementation has a number of disadvantages:1. ippiWTFwd and ippiWTInvInit are not internally threaded (I assume)2. the...
View ArticleippiFilterBorder bug
I noticed a bug in ippiFilterBorder where ippiFilterBorder_16u_C4R and ippiFilterBorder_16u_C1R (and rarely also ippiFilterBorder_32f_C4R and ippiFilterBorder_32f_C1R, but never ippiFilterBorder_8u_C4R...
View ArticleippiQualityIndex returning NaN
I noticed that ippiQualityIndex may return a NaN for parameter pQualityIndex, even with comparing images that don't contain a NaN themselves. The result code is ippStsNoErr. I guess the cause is...
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Scharr matrix confusion
In his original publication [1] Scharr lists (on page 120 ) the filter, named after him, as:[1] Dipl. Phys. Hanno Scharr, Optimale Operatoren in der Digitalen Bildverarbeitung, INAUGURAL-DISSERTATION...
View ArticleIPP - Performance Issue
HI,I'm using IPP dynamic linked with clang 11.0.0.Hardware: Processor Name: 6-Core Intel Core i5 Processor Speed: 3 GHz Number of Processors: 1 Total Number of Cores: 6 L2 Cache (per Core): 256 KB...
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