<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small"><font color="#000000" face="Times New Roman" size="3">

</font><p style="margin:0cm 0cm 0pt;text-align:justify;line-height:normal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><font color="#000000">Good
afternoon, </font></span></p><font color="#000000" face="Times New Roman" size="3">

</font><p style="margin:0cm 0cm 0pt;text-align:justify;line-height:normal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><font color="#000000"> </font></span></p><font color="#000000" face="Times New Roman" size="3">

</font><p style="margin:0cm 0cm 0pt;text-align:justify;line-height:normal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><font color="#000000">I’m
very much interested in using High Dynamic Range Imaging (HDRI) for recording
illuminance values in office buildings as part of Post Occupancy Study. I am
using Photosphere software to generate the HDR images, but I am not sure how to
convert the luminance values/images to illuminance values. </font></span></p><font color="#000000" face="Times New Roman" size="3">

</font><p style="margin:0cm 0cm 0pt;text-align:justify;line-height:normal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><font color="#000000"> </font></span></p><font color="#000000" face="Times New Roman" size="3">

</font><p style="margin:0cm 0cm 0pt;text-align:justify;line-height:normal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><font color="#000000">Any
advice would be appreciated.</font></span></p><p style="margin:0cm 0cm 0pt;text-align:justify;line-height:normal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><font color="#000000"></font></span><br></p><font color="#000000" face="Times New Roman" size="3">

</font><p style="margin:0cm 0cm 0pt;text-align:justify;line-height:normal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><font color="#000000">Many thanks</font></span></p><font color="#000000" face="Times New Roman" size="3">

</font><p style="margin:0cm 0cm 0pt;text-align:justify;line-height:normal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><font color="#000000">Sura
<span> </span></font></span></p><font color="#000000" face="Times New Roman" size="3">

</font><p style="margin:0cm 0cm 10pt"><span><font color="#000000" face="Calibri" size="3"> </font></span></p><font color="#000000" face="Times New Roman" size="3">

</font><br clear="all"></div><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><p style="margin:0cm 0cm 0pt;line-height:normal"></p><span style="font-family:"Arial Narrow","sans-serif""><p style="margin:0cm 0cm 0pt;line-height:normal">Sura Al-Maiyah Ph.D.(Ulster), CIBSE,SLL,ICOMOS<font color="#000000" face="Times New Roman" size="3">

</font></p><p style="margin:0cm 0cm 0pt;line-height:normal"><font color="#000000" face="Times New Roman" size="3">

</font></p></span><p style="margin:0cm 0cm 0pt;line-height:normal"><span style="font-family:"Arial Narrow","sans-serif""></span></p><font face="Times New Roman"></font><p style="margin:0cm 0cm 0pt;line-height:normal"><span style="font-family:"Arial Narrow","sans-serif"">Senior Lecturer, Co-ordinator MA Sustainable Architecture </span></p><font face="Times New Roman"></font><p style="margin:0cm 0cm 0pt;line-height:normal"><span style="font-family:"Arial Narrow","sans-serif"">Portsmouth School of Architecture</span><span style="font-family:"Arial Narrow","sans-serif""></span></p><font face="Times New Roman"></font><p style="margin:0cm 0cm 0pt;line-height:normal"><span style="font-family:"Arial Narrow","sans-serif"">University of Portsmouth</span><span style="font-family:"Arial Narrow","sans-serif""></span></p><font face="Times New Roman"></font><p style="margin:0cm 0cm 0pt;line-height:normal"><span style="font-family:"Arial Narrow","sans-serif"">t.</span><span style="color:rgb(136,136,136);font-family:"Arial Narrow","sans-serif""> </span><span style="color:rgb(136,136,136);font-family:"Arial Narrow","sans-serif""><a><span style="color:blue">+44 (0)2392842091</span></a></span></p></div></div></div></div></div></div></div>
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