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Post by William Martin on Jul 7, 2003 16:09:38 GMT
there is a new(ish) method called grey scale colour estimation basically a computer assigns a colour to each shade of grey and the computer operator fiddles around untill it looks right, of course it is best to know some of the colours to start with, there are always problems eg yellow and white look the same, but it may be of use for programs where there is incomplete existing colour reference material such as the publicity and contunuity stills for "year of the sex olympics" et al
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Post by Deleted on Jul 12, 2003 15:17:51 GMT
slightly off topic but when they were making Stingray, they had to change the shade of red in the outfits very early on, because it was causing havoc as black crushing on old B/W tv sets.
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Post by William Martin on Jul 14, 2003 15:20:12 GMT
this is exactly the problem dark red can look black, green and blue can look the same and so on. the process would present a choice of possible coulours but the more you were sure of the fewer possible colours each shade would represent. Some choices would be obviously wrong but for example if it were an episode of say Dr who where only one episode was b/w such as planet of the daleks, the colours of most of the set, props and costumes could be taken from the other episodes. something like Year of the sex olympics would be more difficult as few colur sources remain and 1968 was a bit garish anyway.
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Post by Deleted on Jul 14, 2003 20:37:50 GMT
wernt all the old continuity clocks and some idents in reality black but were blued up for the screen?
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Post by Deleted on Jul 14, 2003 20:42:12 GMT
this is exactly the problem dark red can look black, green and blue can look the same and so on. the process would present a choice of possible coulours but the more you were sure of the fewer possible colours each shade would represent. Some choices would be obviously wrong but for example if it were an episode of say Dr who where only one episode was b/w such as planet of the daleks, the colours of most of the set, props and costumes could be taken from the other episodes. something like Year of the sex olympics would be more difficult as few colur sources remain and 1968 was a bit garish anyway. perhaps some sort of colour diffrence thing where if you know one or two colours you can make an average of the others.
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Post by Ron Merritt on Jul 15, 2003 4:28:23 GMT
Just wondering how much this new method would cost? It's been mentioned over and over that it would cost 25 grand per episode of doctor who to be put back in color using other methods. Does the Restoration team know about this new method? What are their thoughts on it?
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Post by ShaquiUK on Jul 19, 2003 8:39:54 GMT
wernt all the old continuity clocks and some idents in reality black but were blued up for the screen? . Actually, I think with things like that - idents and the like - it was the opposite. Blue and yellow were used as the contrast between black and white was too much for older cameras, and would result in a 'burn' effect. You see this sometimes with a bright light, and you get a dark effect in the middle.
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Post by ShaquiUK on Jul 19, 2003 8:44:00 GMT
there is a new(ish) method called grey scale colour estimation basically a computer assigns a colour to each shade of grey and the computer operator fiddles around untill it looks right, of course it is best to know some of the colours to start with, there are always problems eg yellow and white look the same, but it may be of use for programs where there is incomplete existing colour reference material such as the publicity and contunuity stills for "year of the sex olympics" et al It's funny but this is almost the reverse of what i had to do early in my graphics career - give sales reps a chart, actually a screened bromide (high contrast repro), of how colours would reproduced in b/w. You get used to the tones eventually, and can usually estimate what colour they were original. Warm colours (red, orange, purple) tend to be darker, while cool colours (blue, green) reproduce lighter...
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Post by William Martin on Jul 23, 2003 15:47:37 GMT
what would be your opinion on the accuracy of such a method? the peocess was origionaly developed for use in astrophotography and crime detection(colurising cctv footage et.c) with these the image is stable and lighting constant, for tv the lighting and contrast change all the time. I would imagine that the best results would be obtained by colourising every 10th frame or so then using the normal colourisation software to fill in or bridge the gaps.
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