topic Re: Copying Pixels in Intel® Integrated Performance Primitives

Copying Pixels

reportbase — Tue, 01 Dec 2009 22:35:45 GMT

Lets say I have an ROI with a height of 100 pixels. I want to copy all the pixels from the first row and
paste them onto the next 99 rows. Of course, I know that I can loop through the rows
and do it.

My question, is there a fast optimized way to do this in IPP, where the algorithm just pastes the same set of pixels
onto the entire ROI.

(This is uesful if you want to expand an image at a given x-y coordinate.)

Re: Copying Pixels

Ying_H_Intel — Wed, 02 Dec 2009 09:12:20 GMT

Quoting - reportbase

Hello

may you try the function

IppStatus ippiCopyReplicateBorder_c8u_C1IR(const Ipp* pSrc, int srcDstStep, IppiSize srcRoiSize, IppiSize dstRoiSize, int topBorderHeight,int leftBorderWidth);
see if it can meet your request?

(the functionis supposedbe able tocopy

1 2 3 4 5
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
to
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5)

Regards,
Ying

Re: Copying Pixels

reportbase — Thu, 03 Dec 2009 08:27:25 GMT

Quoting - Ying H (Intel)

Thank You. That did the trick.