<font color="yellow">"I use photoshop to place each filter image into the channels of a blank RBG image. One thing I would like to do is combine L2, L3, L4, L5, L6 and L7 to get a smoother color balance and gradient for a much more tweakable image. I don't know how to pre combine channels though."</font><br /><br />I sometimes wish I had a copy of Photoshop just to be able to answer these kinds of questions. I looked into downloading a free 30 day trial copy just to see what the differences are between it and GIMP, but it's a 6 and a half hour download with dial-up. Oh well.<br /><br />As I understand it (I could be wrong), the usually explained method for making RGB composites using Photoshop doesn't allow the flexibility to use more than 3 channels. As you say, you would probably have to do some kind of precombining to make it work. Paint Shop Pro has a slightly different method for combining greyscale images into an RGB composite, but it has the same 3 channel limitation.<br /><br />The image below was produced by combining all 6 color filter images (L2, L3, L4, L5, L6 & L7) in layers, setting every layer to Screen with the Layer Blend Mode Selector and then adjusting the color of each layer using the Channel Mixer. Doing it this way gives me the flexibility to combine as many filters as I want. For this image I used a spectrum/frequency chart to match RGB colors to the MER filter frequencies.<br /><br />With the inclusion of the L2 and L7 filters I'm not going to claim that this image depicts anything like "true" color, but I had never done a 6 filter image and wanted to give it a try, too.<br /><br />Waddaya think?<img src="/images/icons/smile.gif" /> Be nice.<img src="/images/icons/rolleyes.gif" /> <div class="Discussion_UserSignature"> <font size="3" color="#ff9900"><p><font size="1" color="#993300"><strong><em>------------------------------------------------------------------- </em></strong></font></p><p><font size="1" color="#993300"><strong><em>"I hold it that a little rebellion now and then is a good thing, and as necessary in the political world as storms in the physical. Unsuccessful rebellions, indeed, generally establish the encroachments on the rights of the people which have produced them. An observation of this truth should render honest republican governors so mild in their punishment of rebellions as not to discourage them too much. It is a medicine necessary for the sound health of government."</em></strong></font></p><p><font size="1" color="#993300"><strong>Thomas Jefferson</strong></font></p></font> </div>
Basic Error: The accelerating Universe conclusion - reason
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