tag:blogger.com,1999:blog-8937414969460147900.post4161919722999668972..comments2024-03-06T07:06:38.928-08:00Comments on JSBlog - Journal of a Southern Bookreader: Re-colouring the pastRay Girvanhttp://www.blogger.com/profile/05556764642402680159noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-8937414969460147900.post-34800294611436812772008-12-12T08:48:00.000-08:002008-12-12T08:48:00.000-08:00This is really interesting. However, I don't t...This is really interesting. However, I don't think it will ever be possible to reproduce the color of the <em>light</em>. All of the attention seems to be on the color of objects/surfaces, when it is the light (blue-sky, yellow-sun, green-woods, or whatever color may be reflected from any/all large nearby surfaces) that "makes" the particular tint that you see. Within any given scene, there will almost always be multiple tints (yellow tint from the primary with blue tint from the secondary [shadows] is common, but there can be any number of secondary sources). Wherever one light source is blocked (shadowed), the object will be lit by the secondaries which are almost never going to be the same tint as the primary.<br><br>With rounded objects (which is just about everything) you have gradient/gradual transitions from one light tint into another (light into shadow in the simplest instance).<br><br>And, of course, all of these light tints are changing every second if they're in a motion picture.<br><br>-JulieJulie Heywardhttp://unrealnature.wordpress.com/noreply@blogger.comtag:blogger.com,1999:blog-8937414969460147900.post-49865930435006802562008-12-12T11:53:00.000-08:002008-12-12T11:53:00.000-08:00I don't think it will ever be possible to repr...<i>I don't think it will ever be possible to reproduce the color of the light.</i><br><br>If you mean it's difficult to back-engineer the particular illumination conditions and white-light colours of objects that resulted in the particular appearance of objects, yes. (That is, you see a pink piece of cloth on screen, and there's no way to tell, say, if it's pink cloth under white light, or white cloth under pink light).<br><br>But that seems academic in this case, in that they're just interested in recreating what was stored on the PAL colour video (i.e. what was "seen" by the camera) regardless of whatever multiple sources went into producing that).Ray Girvanhttp://www.blogger.com/profile/05556764642402680159noreply@blogger.comtag:blogger.com,1999:blog-8937414969460147900.post-67530559870993676582008-12-13T09:47:00.000-08:002008-12-13T09:47:00.000-08:00Me, I'm just admiring your new "Planet of...Me, I'm just admiring your new "<i>Planet of the Apes</i> style" portrait...<br><br>:-)Felixnoreply@blogger.comtag:blogger.com,1999:blog-8937414969460147900.post-91841275350583750562008-12-13T10:29:00.000-08:002008-12-13T10:29:00.000-08:00Generated using the University of St Andrews Face ...Generated using the University of St Andrews <a href="http://morph.cs.st-andrews.ac.uk/Transformer/" rel="nofollow">Face Transformer</a>.Ray Girvanhttp://www.blogger.com/profile/05556764642402680159noreply@blogger.com