Hello,
Thanks for your advice firstly.The pictures of vedio are good now
after adjusting the Lens aperture.
But,i fall in the trouble of vignetting recently.I find you use the
method of Function approximation.I look up some papers,the Function is
f(i,j) = cosh(rx*(x-x0))*cosh(ry*(y-y0)) +c
Hi,
But,i fall in the trouble of vignetting recently.I find you use the
method of Function approximation.I look up some papers,the Function is
f(i,j) = cosh(rx*(x-x0))*cosh(ry*(y-y0)) +c .However,yours is
f(x,y)=p*(x-x0)^2 +q*(y-y0)^2 + c-f(x,y)=AX*x^2 + BX*x +
AY*y^2 + BY*y + c.
Hi,
Many thanks for your reply.
Make test images and use them to estimate these values? Could you
please explain this in more details ? What are test images? And how to
use these values to estimate?
Best regards
Song Rui
2014-05-08 2:13 GMT+08:00 Oleg support-list@support.elphel.com:
Hi,
