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Message: <blockquote data-quote="elkcub" data-source="post: 3436930" data-attributes="member: 14473">Hi David,Yes, I agree with you, but I think such a color bias rendering (i.e., computing) program would necessarily require both the physical input spectrum and the human luminosity functions to work with.  Keeping in mind there are individual differences in the luminosity functions within the population, as mentioned above, the resultant images would still not be definitive for everyone. Apart from that, I think a database of numerical transmission vectors would be valuable for a range of purposes, including assessments of:<ul> <li data-xf-list-type="ul">Inter-tube differences</li> <li data-xf-list-type="ul">Inter-specimen differences</li> <li data-xf-list-type="ul">Coating change effects</li> <li data-xf-list-type="ul">Product differences</li> <li data-xf-list-type="ul">Brightness assessment </li> <li data-xf-list-type="ul">Output (luminance) color bias</li> <li data-xf-list-type="ul">Perceived color bias prediction</li> <li data-xf-list-type="ul">Validation of other methods</li> </ul>Regarding the last point, rather than arguing about camera-based methods for assessing color bias, the numerical data could provide an opportunity to explain/validate more objectively what these output images represent.  From my perspective, camera image manipulations are simply human perception simulators (or models), where hopefully the resultant screen patches illustrate the color bias a typical observer would consciously perceive looking through the instrument.  Easy to say, not so easy to prove, particularly if the proffered images are accompanied by statements by the authors that this is what they see.  I don't buy into using their perceptions as standards, so something more objective is needed.I'm gonna think a bit more about that "brown" thing, since it sounds suspiciously similar to Chosun's hallucinations about the SLC HD.  o<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin    :D" loading="lazy" data-shortname=":D" />EdQuestion:  Returning to the Allbinos' report, it seems that the transmission measure of the SF was the max value of the curve, wherever it was located.  Is that correct?  I can't find it anymore, but I thought Arik had said that he took an average across all the frequency bins.</blockquote>

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