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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Seyed Muhammad Hossein Mousavi писал(а):

Nice job Mariana.

Dave Vierthaler писал(а):

@ 0:55 you captured a real slice of life. Your work is amazing in bringing life back to those lost. I am mesmerized by your great work, skill, precision and commitment to tell the stories of those who can’t.

Matheus De Oliveira писал(а):

Maravilhoso o trabalho, descobri voc agora pouco, que orgulho de voc.

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..

Zoologyrome Mr. писал(а):

Korean war 1950, you have to work it together.

Jack Nunez писал(а):

These are my new favourite thing

FISH BE WITH YOU писал(а):

how

BokkenRyder писал(а):

The music is of bad taste though

BokkenRyder 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 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.

SaxifrageCole 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!

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

Lumi Land писал(а):

i am 18 yo old artist. Can anyone check out my work ??

mincraft horsey писал(а):

hi

HiangkuTibn писал(а):

Yeh what about the video, did they track every frame?

eshaan Bidarakoppa писал(а):

I started colorization because of this video and now do it as a hobby.

The Ishaan and Ankita Show писал(а):

I turned this into triple 6 likes

Johnny писал(а):

If you don't like colorization, you are free to turn off your computer and go back to your cave

Vagner Jr писал(а):

The past doesn't seem so old now, Right?

Kate FX писал(а):

Colorizing on a computer does not damage the original black and white photograph. The argument that it's "vandalizing" the original is ridiculous. If you don't want to see colorized photos, don't look.

Iza Belotti писал(а):

02:36 That's actually not Howard Carter. In fact, it's Lord Carnarvon, Carter's patreon. ;)

Praveen писал(а):

I hope softwares become much more advanced to make this process much much easier, for artists!

Do you believe? писал(а):

Ahh finally we can relate & imagine ourselves there who else?

Mephisto писал(а):

how about colorizing old films?

Mio Mio Mio писал(а):

I used to watched weekly scheduled black and white movies with my family when i was young. At that time, i thought the world was really black and white.

Saad Nabil писал(а):

Interesting!

Jayson Childs писал(а):

If the person taking the photo could have used color.. they would have... black and white is only for effect.

kainoa ruiz писал(а):

Does anyone know what song that was at 1:32? Ik it's just a snippet of a it

ParadoxdelaPaladino писал(а):

It' pretty simple if you have photoshop. It's kinda fun doing it on your own.

Sophia писал(а):

5:28 could you imagine how surreal it would be walking up to Lincoln

Saiverlation HD писал(а):

Am i the only one who has never seen so many of these colorized photos??

B Brian писал(а):

Yes

James Beryllis писал(а):

OMG, who is the guy at 6:47?? He is SOOOOO hot!

Vin Kie писал(а):

this stuff is magic to me

geno mccgeno писал(а):

It’s beautiful work. The b/w original doesn’t cease to exist, but an old photo that you might just glance at becomes much more realistic and interesting.

gabrielirlanda писал(а):

No matter either it is black&white, grey, colour or transparent, A. Lincoln always looks creepy.

Ali Koc писал(а):

Woooow!