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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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..

Illuminati 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.

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.

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

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

Jason De Silva писал(а):

U are very very great man.

Rohan Kishibae писал(а):

My grandpa has an old photo of himself that is hand-colored.

Ahmad Dzaki писал(а):

Anyone know how to make a photo look old (decolorizing)

kevin el Lokito писал(а):

No

Ari писал(а):

I had to recolour a photo for a graphic design class, and let me tell you, it was so difficult, but so fun

Ivano Bobas писал(а):

2:56 did anyone else notice what it says here

Villager 57 писал(а):

2:53, I would like some of these Easter Eggs too

Lavalambtron писал(а):

Best to colorize them using AI, AI has seen thousand perhaps millions of images and can immediately understand how to translate tons of training data into a realistic ancient image, it’s a super-intelligence that considers everything at the same time with high precision while we humans are limited.

Cycling Journo on the Road писал(а):

Love it!

Mango T писал(а):

It’s not a new art, but the actual process they use now make them really come to life. It’s pretty awesome. What a cool job.

Jeremy Waqa писал(а):

Can't understand why some people don't want these photos to be colored. I centerly love them in color as it gives more feel, emotion to the photos. (Also when I was a kid our family watched a few black & white films, and, as a kid, I thought that everything back then was black & white) :)

Julie yo писал(а):

We learned how to do this in my photography class in hs

Peter Rasputin писал(а):

They do a nice job, thank you to all of those obsessive artists

2B11 GEE RICHELLE MELANIE писал(а):

This is actually a very awesome job! I would like to give it a try maybe someday in the future

Rod писал(а):

Very impressive. Colorizing an old video would be even more impressive 2:00

Eggman loves pp писал(а):

I like colored pictures more then black and white. Black and white makes it feel so much older and gives it that historic feeling, but in color makes it feel like its more realistic like it is not some hollywood movie re creation

Davis Prather писал(а):

Ever see They Shall Not Grow Old ? That's an entire documentary, made of colorized and painstakingly restored footage from World War 1.

Appreciate the Hyung Line! писал(а):

But the original picture is still black and white. So what’s the matter?

Yahmez писал(а):

I remember thinking, as a kid, that something had to be wrong with the sun back then and that we were lucky to have a colourful sun in our time.

Public Public писал(а):

Take it from me.... It is a whole lot easier to use digital than natural medium. But you know there is enough there in the b/w to make the pics pop [yes I hate that dumbed down term too] in b/w using contrast for example. And what I really hate about these digital tints/colourisations is the colour is mostly a dead wash of one hue and colour doesn't work like that in real world. One colour gets reflected into another and thus mixed in the ways that reflected light work.

JNFE TV писал(а):

This is the kind of art that I love and would collect.