topic Re: cannot get ippiUndistortRadial to work in Intel® Integrated Performance Primitives

cannot get ippiUndistortRadial to work

userumr — Wed, 27 Jun 2007 21:35:42 GMT

I am trying to unwarp a radial distorted image. I have the parameters cx, cy, k1, k2. These parameters were calculated by someone else and I have no idea what fx and fy are. I thought that if I put fx and fy as 1 (one) these values should work.

this is the line in the code which I use

ippiUndistortRadial_8u_C1R (srcImg, srcStep, destImg, destStep, size, fx, fy, cx, cy, k1, k2, NULL);

when I try to display destImg. I get a black image. Is there something that I am doing wrong??

Thanks

Re: cannot get ippiUndistortRadial to work

userumr — Wed, 27 Jun 2007 22:04:49 GMT

fixed. thankyou.

my srcStep and destStep were wrong.

Re: cannot get ippiUndistortRadial to work

Intel_C_Intel — Mon, 02 Jul 2007 06:13:15 GMT

Hi,

Of course you'll get some results setting fx and fy to 1 but generally they are measured in image pixels as cx and cy

Thanks,

Alexander