Колоризация. Реставрация цвета в черно-белых фото

[садовник]

Превратить цветное фото в черно-белое сейчас, в эру компьютеров, не составит никакого труда.

А вот ч/б преобразовать в цветное - уже нетривиальная задача. Даже с помощью того же компьютера.

В компьютере каждый цвет (их более 16-ти миллионов) имеет свой номер С, который рассчитывается по формуле:

C = R*(256^0) + G*(256^1) + B*(256^2),

где R (Red) - красная составляющая нашего цвета (значения от 0 до 255),
G (Green) - зеленая составляющая (значения от 0 до 255),
B (Blue) - синяя составляющая (значения от 0 до 255).

Соответственно
номер красного цвета: 255*(256^0) + 0*(256^1) + 0*(256^2) = 255
номер зеленого цвета: 0*(256^0) + 255*(256^1) + 0*(256^2) = 65280
номер синего цвета: 0*(256^0) + 0*(256^1) + 255*(256^2) = 16711680
номер серого цвета: 128*(256^0) + 128*(256^1) + 128*(256^2) = 8421504

Как получить серый оттенок Y, имея RGB-составляющие цвета C? - По следующей формуле:

Y = 0.299*R + 0.587*G + 0.114*B,

где R, G, B - цветовые составляющие цвета C.

Обратная задача. Как получить цвет C (или его цветовые RGB-составляющие), соответствующий оттенку серого Y? - Тут всё сложнее:

0.299*R + 0.587*G + 0.114*B = Y

Имеем уравнение с тремя неизвестными: R, G и B. 256*256*256=16 777 216 комбинаций (это только для одной точки на фото).

Подозреваю, что на начальном этапе существенная часть RGB-комбинаций как-то отсекается, но это не сильно облегчит задачу реставратору.

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A E A писал(а):

Music did not match some images imo. Amazing pictures nonetheless.

Moutton Noir писал(а):

These are incredible- it's amazing the transformation that takes place when the images are colorized- it's as if life pours into the figures. The only image that doesn't work for me is the concentration camp inmates- their complexion is surely too healthy?

untitled untitled писал(а):

beautiful art that u bring to us..

Illuminati Mr. писал(а):

Korean war 1950, you have to work it together.

Jack Nunez писал(а):

These are my new favourite thing

roy penn писал(а):

how

Snowman_Fred писал(а):

The music is of bad taste though

Snowman_Fred писал(а):

0:42 that's a corpse

ChristophersMum писал(а):

Thank-you so much Marina, Although I grew up in the 50s and familiar with black and white photography, the way these photographs come to life adds poignancy to them. Really good work. (Had to mute the music though)

Freyja Sarasvati писал(а):

I think 1:54 is taken from the 90s/2000s? cause i think I remember the news. and all picture from 90s already have colors

Mi P писал(а):

mother earth that burning monk picture was taken in '60s

T писал(а):

I can't get over 1:05 . It looks like it's always been in colour

Herta Schneider писал(а):

T liTTle Too orangy/peachy buT...

Aomine Daiki писал(а):

Me: black and white :( Me: Coloured :)

TheConorsmithusa писал(а):

amazing work but it's a shame the years weren't put with the years of the photos...

TheBookaholic писал(а):

Even more amazing if we could see the year each picture was taken.

hladkyj88 писал(а):

amazing! i'd love any additional context for pictures you could provide in future videos

Daniel Moreira писал(а):

Subjects that look historical become real people... The surroundings become ordinary... Everything becomes relatable... And it dawns on us that world has always been very much the same!

xBrownGirLinTheRingx писал(а):

Amazing work!

MsTiK писал(а):

It would be nice to have a country/person and the time mentioned, too.

SpeedStick писал(а):

This is amazing to see the past in its true colors.

Bewleed писал(а):

Looking back at the BnW days seems like a part of a Movie Set. It just looks unbelievably unreal to see those BnW days in colors and to think that those events were actually real and it's part of our history. Amazing

P.S. Х/Ф "В бой идут одни старики" в 1973г. снят на ч/б кинопленку. А в 2009г. был колоризирован.

Подробнее о колоризации здесь:   *** Авторизуйтесь, чтобы увидеть ссылку ***  

[Любимый гость]

[Смолянка]

Садовник, ух, как все сложно с этими формулами, но результат впечатляет!

[садовник]

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Vox писал(а):

You can find more photos on the artists' pages. Check them out: Jordan Lloyd (@jordanjlloydhq): http://dynamichrome.com/ Mads Madsen (@Madsmadsench): http://www.colorized-history.com/ Marina Amaral (@marinamaral2): http://www.marinamaral.com/ Dana Keller (@HistoryInColor): http://www.danarkeller.com/ Patty Allison (@imbuedwithhues): https://imbuedwithhues.wordpress.com/ The Paper Time Machine: https://unbound.com/books/paper-time-machine

un писал(а):

You guys produce fake news

ted kaczynski писал(а):

and how do they colorize movies? not frame by frame i guess. massive computing power somehow.

Matthew Fritch писал(а):

I'm not a big fan of Vox or it's politics, but I deeply appreciate this video and the people in it. Thanks Vox.

Drew Fisher писал(а):

No mention of Sanna Dullaway?

Ana Maria Figueroa Escobar писал(а):

El cerebro

laurentaj писал(а):

i have no choice but to appreciate and respect this work

Wes Jett писал(а):

I had some work commissioned by Mr. Madsen a couple of years ago and could not believe the result I got back. Being able to see my great-grandmother I never met in color was amazing and made an incredible gift to a few of the older relatives.

писал(а):

i hate ads but i do the same professional kind of work all by myself check my page here https://www.facebook.com/Royal-Gallery-549270145600033/?modal=admin_todo_tour

Purpose Opening Minds писал(а):

I love this

Aussie Talks писал(а):

I once saw a coloured photos of my great grandma and I cried

Lauren Victoria писал(а):

dayum

Jesse Bond писал(а):

But I think it SHOULD be a substitute for old photographs. If the colorization is done right, then it pretty much devalues the colorless original by breathing life into it. You're not changing the images to suit your own personal views; your trying to be as faithful to the photographs as possible. What would we achieve by staring at a black and white image if a properly colored one exists as well?

Jared Delong писал(а):

Photoshop

REPOGAM писал(а):

1920:i bet their will be flying cars in the future 2019: Close enough

REPOGAM писал(а):

2:53 "Easter eggs for hitler" Yummy!

Mas Pras Channel писал(а):

We need this app or filter. Any download link?

corn Sauce писал(а):

Colour blind people sitting here like “wtf changed between these photos they all look the same”

Lustantino Animations писал(а):

Color is all I can see in a world of black and white. You enhanced the feel of that, and it is a work of art.

Gavin писал(а):

No keep colorized photos there cool

CarlosDa7id писал(а):

This is just great! wow what a nice work!

tvvheadd писал(а):

Seeing these picture colorized really scares me. How could something so simple like color make it so different, it's the same  *** Авторизуйтесь, чтобы увидеть ссылку ***   with color. But yet, seems like it was taken today.

Nincadalop писал(а):

I want to see one with wrong lighting just to know how different it would look.

Mark Nunes писал(а):

I wonder if somehow the original colors are encoded within the black and white photograph itself? Each color has a different wavelength so at a microscopic level maybe that information is somehow preserved.

StrawberryBleach писал(а):

Anyone who says this is vandalism is crazy this is amazing work that takes weeks of painstaking research and editing. It makes me feel a little closer to the past :)