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A comment on Show HN: Open source colorizing grayscale images with NN. Parent comment

Re:Show HN: Open source colorizing grayscale images with NN by pbhjpbhj on Thursday April 21, 2016 @06:43AM (#11540919)
How would they know that the vehicles, say, were supposed to be the same colour. I'm thinking The Italian Job - the same model of cars are used and are distinguished by their colours. Also what about when different vehicles are painted by the production team to look the same (for stunts say), the computer could rightly recognise them as different vehicles - how would it then know that they're supposed to be the same.

For such things it seems you'd need to check every shot change.

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Re:Show HN: Open source colorizing grayscale images with NN by WalterBright on Thursday April 21, 2016 @07:44AM (#11541256)
BW filmmakers were, of course, well aware that they were filming in BW and would select colors for sets and costumes that would look good in BW. For example, chocolate milk was used for blood. You wouldn't want a colorizer to determine the actual colors, but the intended colors!

Even today, directors rarely seem to want to film in actual color. They'll tint everything sepia, or that hideous blue-orange scheme that is so popular these days.

http://priceonomics.com/why-every-movie-looks-sort-of-orange...

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Re:Show HN: Open source colorizing grayscale images with NN by WalterBright on Thursday April 21, 2016 @07:36AM (#11541208)
That TIJ cars were distinguishable only by color was made possible by filming in color. A BW movie would not make a film requiring distinguishing colors that filmed as equal shades of grey.

In any case, any such colorizing system would be designed to accept a bit of guidance here and there from the artist. This is much like when an OCR'd document needs a bit of touch-up.

And even if it wasn't perfect, many BW movies would be made much more watchable, like the 1927 Wings, which is crying out to be colorized (and have a soundtrack added).

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Re:Show HN: Open source colorizing grayscale images with NN by m_mueller on Thursday April 21, 2016 @09:05AM (#11541766)
Even though already perfectly enjoyable, I'm thinking Kurosawa films like Seven Samurai and Yojimbo. Man that would be something.
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Re:Show HN: Open source colorizing grayscale images with NN by WalterBright on Thursday April 21, 2016 @05:00PM (#11545313)
Yup. For what is possible, see reddit's colorizedhistory subreddit. The old pictures become much more interesting.
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Re:Show HN: Open source colorizing grayscale images with NN by omtose on Thursday April 21, 2016 @07:29AM (#11541157)
>the same model of cars are used and are distinguished by their colours

Aren't we talking about a B&W film? In that case the colour (or its lack of) wouldn't communicate any information.

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