Hi All, I am not entirely sure that I remember this correctly, but I once looked at these camera curves in photosphere for the purpose of plotting them. I seem to recall that the coefficients are reversed relative to how you might expect them.
It may be worth trying to reverse the order of the coefficients, so for the first of the three lines this would be: 4 4.462320e+00 -5.786777e+00 2.441168e+00 -3.556814e-02 7.135383e-03 Hope this helps. Cheers, Erik On May 13, 2013, at 10:31 PM, Axel Jacobs <[email protected]> wrote: > Right, so we are on the right track--hdrgen no longer rejects the RSP. > > Next question is: how good is the RSP? Try plotting it. If it is smooth and > monotonic, without any kinks in it, it's a good one. Otherwise, try > generating it from a different sequence. The 5D is used a lot on WebHDR: > http://www.jaloxa.eu/webhdr/cameras/Canon__Canon_EOS_5D.shtml > How does your RSP compare with the averaged one? Note that there is no > quality control, and even 'wonky' ones make it into the average. > > Axel > > > > On 05/13/2013 09:21 PM, Michael Martinez wrote: >> Using a 4 in front of the Photosphere numbers like this: >> >> 4 7.135383e-03 -3.556814e-02 2.441168e+00 -5.786777e+00 4.462320e+00 >> 4 4.543790e-03 3.363440e-02 1.917460e+00 -4.660105e+00 3.792747e+00 >> 4 3.956902e-03 3.244581e-02 1.827308e+00 -4.505138e+00 3.729707e+00 >> >> unfortunately results in a wonky HDR with garbage luminance values and >> strage visual artifacts - see screen shot here >> <https://dl.dropboxusercontent.com/u/28677369/Screen%20shot%202013-05-13%20at%201.17.33%20PM.png>. >> >> >> compared to a screenshot of the photosphere created HDR >> <https://dl.dropboxusercontent.com/u/28677369/Screen%20shot%202013-05-13%20at%201.17.55%20PM.png> >> >> >> >> >> >> On May 13, 2013, at 1:05 PM, Axel Jacobs wrote: >> >>> Oops, >>> >>> try '4 ', not '6 ' as per my last post. >>> >>> Embarrassingly yours > > > _______________________________________________ > HDRI mailing list > [email protected] > http://www.radiance-online.org/mailman/listinfo/hdri _______________________________________________ HDRI mailing list [email protected] http://www.radiance-online.org/mailman/listinfo/hdri
