topic Re: Change pixel value (PutPixel) in Intel® Integrated Performance Primitives

Change pixel value (PutPixel)

hcostelha — Wed, 16 Jun 2004 19:07:56 GMT

Hi,

What is the easiest way to set a pixel value in a 8u_C1 image? I have a loop that needs to set pixels to a value as it goes.

IPL had a PutPixel, but IPP has nothing of that kind.

Thanks in advanced.

Hugo

Re: Change pixel value (PutPixel)

Vladimir_Dudnik — Wed, 16 Jun 2004 19:20:50 GMT

Hi,

in IPP it is very easy because you have direct access to image data. So all you need is to calculate pixel address, for 8u_C1 images it is something like this:

let i - is column #
and j is row #

pixel_value = pSrc[ j*imageStep + i ];

Regards,
Vladimir