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  1. Re-coloring old back-and-white images and film has been an art done by hand.... Until now.
    (It is still far from perfect, but already amazing)

    A team in Wasada University(Japan) published a technical document, a code sample and "mecab" made a Web service (see post #26), showing how is it possible to turn a grey scale image into full color.

    The Web service:
    http://colorize.dev.kaisou.misosi.ru/ (Japanese UI)
    http://colorize.dev.kaisou.misosi.ru/?lang=en (English UI)

    Instruction:
    1. Click on the big blue button and choose a file
    2. Click on the right blue button
    3. Wait

    Demo Video: (Attached MP4)

    Restriction:
    Source Filesize: <8MB
    Dimension: longest side <800px

    // For the developers and I.T. postgrad and alike
    The blog about the web services (Japanese):
    https://blog.misosi.ru/2016/06/04/siggraph2016_colorization_web_impl/

    The paper/source code (English):
    http://hi.cs.waseda.ac.jp/~iizuka/projects/colorization/en/
    Image Attached Files
    Last edited by MaverickTse; 14th Jun 2016 at 03:52. Reason: contributor correction
    Stopping development until someone save me from poverty or get me out of Hong Kong...
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  2. Impressive i must say... Thank You MaverickTse!
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  3. I'm a MEGA Super Moderator Baldrick's Avatar
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    Yep. Very impressive!!
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  4. It looks interesting
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  5. Capturing Memories dellsam34's Avatar
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    Almost perfect, See my personal sample:Click image for larger version

Name:	grey.JPG
Views:	576
Size:	1.96 MB
ID:	37335Click image for larger version

Name:	Original.JPG
Views:	493
Size:	2.20 MB
ID:	37336Click image for larger version

Name:	colorized.jpg
Views:	886
Size:	115.6 KB
ID:	37337
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    Re-coloring old black-and-white images and film has been an art done by hand.... Until now.
    And still is ... they converted grey scale not black and white as stated

    Grey scale to color is simple ... black and white is more technical
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  7. Member Bernix's Avatar
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    I think if is it color to grey scale and back to color it isnt such new.
    Dads army how to from greyscale to Color Dad's army shooted in color recorded in BW and restored to color. At least it is interesting.
    But It will be different technique I bet.

    Bernix
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    The Japanese technique is way more sophisticated than the color-dot method used on old telecines. It employs AI neural networks.
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  9. It's different from the chroma-dot technique. For chroma-dot technique to work, the original film must contains traces of color info already.
    The AI-technique essentially generate the new color info from scratch... as you can try it yourself using true digital greyscale image.

    B/W and Greyscale... umm, these terms are annoying. In daily life, layman use B/W to refer to both Binary Image and Greyscale, many printer driver use the same convention... it seems only those of use familiar with computer graphics would use the term "greyscale"
    Stopping development until someone save me from poverty or get me out of Hong Kong...
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  10. Member Bernix's Avatar
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    Thank you JVRaines and MaverickTse

    Bernix
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  11. This is pretty fun to play around with. I tried a b/w shot and not greyscale from the original Godzilla 1954. It gave me this kind of neat result


    Image
    [Attachment 37353 - Click to enlarge]





    Also tried another b/w from the film Them. This does not do a bad job at all
    Image
    [Attachment 37354 - Click to enlarge]
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    Not bad considering that neither Godzilla nor giant ants are likely in the training database.
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  13. Member Bernix's Avatar
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    Click image for larger version

Name:	Color.jpg
Views:	804
Size:	60.0 KB
ID:	37358Click image for larger version

Name:	Original.jpg
Views:	789
Size:	267.1 KB
ID:	37359

    My best result so faaar
    Old BW family photo.

    Bernix
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  14. I'll grant that the software's ability to assign colors is impressive. But it's nowhere near being useful for anything.
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  15. Guys accordingly to paper grayscale image should be 224x224 - color map from low res video may be later up-sized and applied to original hires version.
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  16. Did not do a bad job from the original Psycho either. I know I am not using this for its intended purpose, but still a blast to play around with. I like the (as I tend to call it) "electricfied colors" it gives. Sort of reminds me of The software from blackmagic though in that case you do the coloring for the most part

    Image
    [Attachment 37364 - Click to enlarge]








    And another Godzilla 54
    Image
    [Attachment 37365 - Click to enlarge]
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  17. nice to see mixed response,
    then perhaps no one will ask for a plugin or something like that of waifu2x...
    Stopping development until someone save me from poverty or get me out of Hong Kong...
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  18. Member Bernix's Avatar
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    MaverickTse -
    Tried waifu2x and it is Great, thank you!
    I also would like to see it as standalone or anything.
    Great things.
    Last edited by Bernix; 12th Jun 2016 at 00:27.
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  19. Originally Posted by MaverickTse View Post
    nice to see mixed response,
    then perhaps no one will ask for a plugin or something like that of waifu2x...
    I would like to see this as a plugin or a nice standalone
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  20. ...sorry, I'm not going to do it.
    Stopping development until someone save me from poverty or get me out of Hong Kong...
    Twitter @MaverickTse
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  21. Capturing Memories dellsam34's Avatar
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    Originally Posted by jagabo View Post
    I'll grant that the software's ability to assign colors is impressive. But it's nowhere near being useful for anything.
    I agree, It can be used however as a starting point for manual coloring.
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  22. Originally Posted by MaverickTse View Post
    B/W and Greyscale... umm, these terms are annoying. In daily life, layman use B/W to refer to both Binary Image and Greyscale, many printer driver use the same convention... it seems only those of use familiar with computer graphics would use the term "greyscale"

    Well in real life there is no true B/W except digital representation in computers - due various limitation there is always grayscale (Dirac delta/pulse exist only in theoretical math, real life you need to accept some limitations of it).
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  23. Member racer-x's Avatar
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    Interesting effect on my original B/W photo of my old dragbike. It actually makes the photo look older.

    Original b/w:



    Colored:

    Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
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  24. Member Bernix's Avatar
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    Another family photo.
    Colorized (resized to xxx x 800px)
    Waifu2x -> 2x Superresolution xxx x 1600 another neural network thing posted by MaverickTse
    Another photo from family archive
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    Hi,

    I'm the creator of the web service, and I found here via the Referer of browsers.

    I'm happy to see people here are using it. Thank you!
    It motivate me to add English pages on the site. I think it now should looks familiar for you, while the quality of the lines are not good (corrections welcomed).
    http://colorize.dev.kaisou.misosi.ru/?lang=en

    As pandy mentioned, we could create 224x224 color map then rescale so that improve the processing speed. Unfortunately the released code have not seemed to implement it. That's why I've limited the output resolution. Although I'm going to try to implement it in the future, please use Waifu2x or something to get higher resolution.

    Well, one correction is:
    > A team in Wasada University(Japan) published a technical document, a code sample and a Web service
    I'm not a member of the geniuses team, but a tiny web developer and just running their code
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  26. Originally Posted by mecab View Post
    Hi,

    I'm the creator of the web service, and I found here via the Referer of browsers.

    I'm happy to see people here are using it. Thank you!
    It motivate me to add English pages on the site. I think it now should looks familiar for you, while the quality of the lines are not good (corrections welcomed).
    http://colorize.dev.kaisou.misosi.ru/?lang=en

    As pandy mentioned, we could create 224x224 color map then rescale so that improve the processing speed. Unfortunately the released code have not seemed to implement it. That's why I've limited the output resolution. Although I'm going to try to implement it in the future, please use Waifu2x or something to get higher resolution.

    Well, one correction is:
    > A team in Wasada University(Japan) published a technical document, a code sample and a Web service
    I'm not a member of the geniuses team, but a tiny web developer and just running their code
    Nice! Glad you find your way here

    Can you please clarify which site(s) are owned by you and which is run by the university team?
    Is the domain *.misosi.ru run by you, while
    http://hi.cs.waseda.ac.jp/~iizuka/projects/colorization/en/
    is really owned by that team?
    Stopping development until someone save me from poverty or get me out of Hong Kong...
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    Thanks for introduce the site here, MaverickTse!

    Is the domain *.misosi.ru run by you, while
    http://hi.cs.waseda.ac.jp/~iizuka/projects/colorization/en/
    is really owned by that team?
    That's right. And https://github.com/satoshiiizuka/siggraph2016_colorization repo is also owned by the team.
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  28. Member Bernix's Avatar
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    Thank you for such great web service!

    Bernix
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  29. Member Bernix's Avatar
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    Charlie Chaplin short colored by neural networks https://www.youtube.com/watch?v=_MJU8VK2PI4

    Bernix
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