Per.<br><br>I still think that your problem is the value at which<br>mixfunc decides if the value from the fc image should<br>be used or not (based on your non-zero function).<br><br>You can try and replace the function once with<br>
<br>nonzero(r,g,b) = 1<br><br>and then with <br><br>nonzero(r,g,b) = 0<br><br>In the first case you should get the whole surface<br>in black (because every pixel is used), in the second<br>you should see nothing at all. (Mind you, I haven't<br>
tested these functions; I only assume they work!)<br><br>Also use phisto on your falsecolor image to see the<br>actual values of the black pixels. It looks like there<br>is a range of "dark grey" instead of black. If you convert<br>
your image to tiff or ppm, edit the grey values to black<br>in Photoshop and convert it back you might have a<br>better result already. I'm sure there is also a way to<br>do this with Radiance tools but I don't have one ready.<br>
<br><div class="gmail_quote">On Tue, Jan 12, 2010 at 9:09 AM, Per Haugaard <span dir="ltr"><<a href="mailto:perhaugaard@yahoo.dk">perhaugaard@yahoo.dk</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<div><div><div>I have not been working with HDR images. Maybe you can update on how to easily convert from pic-files to hdr-files in Linux, so I can upload these for illustration
purposes.<br><br></div></div></div></td></tr></tbody></table></blockquote><div><br>*.pic files are *.hdr images. The extension is just a<br>convention and since the world has adopted *.hdr for<br>this type of images the Radiance community is moving<br>
to this extension, too.<br><br>Regards,<br>Thomas<br></div></div><br>