topic Separable Gaussian Blur using custom kernel? in Intel® Integrated Performance Primitives

Separable Gaussian Blur using custom kernel?

levicki — Thu, 09 Aug 2007 22:46:52 GMT

Why IPP doesn't have separable Gaussian Blur filter with the option to use custom filtering kernel / weight matrix?

Re: Separable Gaussian Blur using custom kernel?

levicki — Mon, 20 Aug 2007 05:13:54 GMT

Will anyone be so kind to answer this?

Re: Separable Gaussian Blur using custom kernel?

Vladimir_Dudnik — Mon, 20 Aug 2007 09:29:53 GMT

Hi Igor,

inspite it is not the same but you might be interesting to see the following thread

Generalized Gaussian Blur, borders and filters for whole images

But, to make it clear, when you say gaussian filter, is not it specify kernel exactly? Why do you need custom kernel it that case?

Regards,
Vladimir

Re: Separable Gaussian Blur using custom kernel?

Intel_C_Intel — Mon, 20 Aug 2007 09:36:54 GMT

Hello Igor,

Take a look at ippiFilterGaussBorder_32f_C1R, declared in ippcv.h (IPP 5.2+)
If you need to process 8-bit or 16-bit image, you may use generic
functions for separable convolution: ippiFilterRow* and ippiFilterColumn*.

Vadim

Re: Separable Gaussian Blur using custom kernel?

levicki — Mon, 20 Aug 2007 20:30:01 GMT

But I need to set radius or weighting for blur, not have it fixed.