topic How to filter image with arbitrary mask ? in Intel® Integrated Performance Primitives

How to filter image with arbitrary mask ?

foreststone — Wed, 22 Dec 2004 13:37:46 GMT

How to filter image with arbitrary mask ?

After investigating Filter , Filter32f ,FilterBox and Fixed
Filter functions , I have none filter with mask . For example,my mask is a rectangle or arbitrary shape ? The key
problem to realize such filter is to decide whether the pixel
is in the mask region ,and then do neighbour processing .
If no function in IPP library , are there any code samples with SSE/SSE2/SSE3 ?

Re: How to filter image with arbitrary mask ?

Vladimir_Dudnik — Sat, 25 Dec 2004 02:57:29 GMT

There is no filter with mask realization in IPPI.Youcan use copy with mask (substitute masked bytes with zeroes) and then apply filter.

Vladimir

Re: How to filter image with arbitrary mask ?

foreststone — Mon, 27 Dec 2004 11:29:52 GMT

But the problem is that I neednt filteron the border , so it is critical to decide whether doing filter . Copying with mask cant meet it, because it does filtering any where including border andarea masked .

Re: How to filter image with arbitrary mask ?

Vladimir_Dudnik — Thu, 30 Dec 2004 21:48:16 GMT

I dont fully understand what doyou want. Ifyou dont need to filter bordersyou can use ippiConv(Full or Valid) or ippiCrossCorr(same with inverse kernel). There are a lot of opportunities to do filtering in different ways. We dont have operations with mask in ippIP. If this answer isnt enough,could you pleaseattach a simple code example: what doyou really want to do.

Regards,
Vladimir