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)

mother earth 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

Drew Fisher писал(а):

No mention of Sanna Dullaway?

Ana Maria Figueroa Escobar писал(а):

El cerebro

Jack Horsnell писал(а):

Vox iiii

yours Truly писал(а):

Vox I

Pedro Cendn писал(а):

Google's artificial intelligence will do it automatically

Simone Pradhan писал(а):

Attenborough looked like that?!

K Foster писал(а):

I really enjoyed the explanation of how colorization is done. TY!

lacrosse782 писал(а):

I typically am not a fan of Vox but this was a great video! Excellent work!

Zombie killer90 ?? писал(а):

Seeing That native Was  *** Авторизуйтесь, чтобы увидеть ссылку ***   a distant cousin

Danny Sullivan писал(а):

First piece of good content on Vox's channel

SBdunks3 писал(а):

Does anybody know if the artist accepts commissions? I have a picture of my grandparents parents from the early 1900’s to be colorized

abomination defecation писал(а):

2:22 deez nuts 1911

Sauercrafter XD писал(а):

I was so excited to find my hometown in there! I'm from Dresden!

ashish engineer писал(а):

Suddenly past doesn't seem so long ago.

James Hogg писал(а):

It’s piss easy you remove the saturation on photoshop and colour it in then blend it...

Tushar Chowdhury писал(а):

Cool,now just get rid of the american swearer

Aminur Rashid писал(а):

Why were all the people that vox interviewed have the same great di scripts as vox??

Sara Pause писал(а):

these pics are beautiful

Mugg писал(а):

This video really changed my perspective of history, rather than it being a liner timeline it truly is a beautiful, colorful tapestry. This has given me a new burst of energy to learn more about history! Especially the end sequence! Thanks Vox!

Theo G. писал(а):

the abraham lincoln photo doesn't look good in color

istara писал(а):

It's absolutely amazing but the one thing that is consistently wrong, in at least half these photos, is skin colour (particularly with white subjects). The skin tone is nearly always too peachy-orange - sort of like how someone's skin looks with TV studio makeup and lights. Eg Lincoln at 6'14 is just too orange, whereas Edison at 6'17 has much more natural skin colour, with more blue, white and red. Studying portraiture would probably help these colourisers.

M. Strain Jr. писал(а):

Abraham Lincoln's beard looks even stranger in color. You don't often see that style these days; in fact, I've never seen it.

Blodershade Donald productions писал(а):

goof! the romanian national sunday clothes werent blue. you a re talking to a national romanian having a grandma wich makes them.