<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
</head>
<body dir="ltr">
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif;" dir="ltr">
<p style="text-align: left;">Hello everyone,</p>
<p style="text-align: left;"><br>
</p>
<p style="text-align: left;">I have been doing some tests in order to apply the methodology for overflow correction covered in this year's paper by Jakubiec et al. using pcomb, as for example:</p>
<p style="text-align: left;"><br>
</p>
<p></p>
<div style="text-align: left;">pcomb ‐e "lo=L ∗ Sang ∗ cosCor; L=179 ∗ li(1);</div>
<div style="text-align: left;">Sang=S(1); cosCor=Dy(1);" ‐o masked.hdr</div>
<div style="text-align: left;">| pvalue ‐d ‐b ‐h ‐H</div>
<div style="text-align: left;">| total</div>
<div style="text-align: left;"><br>
</div>
<p></p>
<p style="text-align: left;">However, I keep getting "domain error" messages for both the S(n) and Dy(n) functions in my images. My first thought was something's wrong with the headers, but the view information looks correct having the full 180 degrees span
of my Sigma lens.</p>
<p style="text-align: left;">Images are created by HDRgen using response function obtained by Photosphere, and are square-cropped, and resized to 800x800, <span style="font-size: 12pt;">and otherwise work fine, </span><span style="font-size: 12pt;">in terms
of validating luminances </span><span style="font-size: 12pt;">or </span><span style="font-size: 12pt;">illuminances over Evalglare (</span><span style="font-size: 12pt;">at least the ones that don't contain the sun</span><span style="font-size: 12pt;">). </span></p>
<p style="text-align: left;"><span style="font-size: 12pt;"><br>
</span></p>
<p></p>
<p style="text-align: left;">I'm getting the same domain errors in terms of solid angles when I try to extract a mapping of solid angles, using something like: <i style="white-space: pre-wrap; font-size: 12pt;"> cat image.hdr |pcomb -e 'solidangl=S(1); ro=omega;
go=omega; bo=omega' -o - > solid_angles.hdr</i></p>
<p style="text-align: left;"><br>
</p>
<p style="text-align: left;">If anybody has any hints or ideas, I'd greatly appreciate it, as I think that with careful use (no specular reflections etc.), overflow correction can be a great solution over the alternatives for direct sun measurements.</p>
<p style="text-align: left;"><br>
</p>
<p style="text-align: left;">Thanks in advance,</p>
<p style="text-align: left;">Iason Konstantzos</p>
<div id="Signature">
<div id="divtagdefaultwrapper" style="font-size:12pt; color:#000000; background-color:#FFFFFF; font-family:Calibri,Arial,Helvetica,sans-serif">
<div style="color:rgb(33,33,33); font-size:15px; margin:0px 0px 0px 36pt"><font face="Calibri,sans-serif" size="2" color="black"><span style="font-size:11pt"></span></font></div>
<p></p>
<p></p>
</div>
</div>
</div>
</body>
</html>