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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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

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.

MTV NEWS писал(а):

Somehow I truly feel as though the holocaust photos are best without color.

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

Ish-Hael писал(а):

I'm always interested how those old black and white photos would look like with colors. This satisfied my fascination. Wow!

stephen Chrisfarley писал(а):

A bit of info would of been nice along with the pictures. Dates , people, events etc.

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

Jack Horsnell писал(а):

Vox iiii

yours Truly писал(а):

Vox I

Вася Просто писал(а):

I will colorize ur old photos here https://www.fiverr.com/toner2d/restore-color-restore-image-colorize-black-and-white-photo

Javier goberna писал(а):

wow ty, is really good this guy JM EDICIONES

Cheeky Ifa писал(а):

before i click on this video i thought they simply put a color layer on photoshop, it's amazing seeing how much work goes into these images

zbik писал(а):

Sounds simple right? Yeah, it's a shitload of work.

Sikuriini писал(а):

3:51 Suomi mainittu, torilla tavataan

Asad Khan писал(а):

This work is so interesting and also extremely difficult at the same time. Keep posting unique and informative videos #Vox.

Chris Navas писал(а):

It’s actually really fun

Fleur • VICTON FIGHTING!! писал(а):

6:45

Backyard Stranger писал(а):

Amazing video.... nostalgic.

Celestia Ludenburg писал(а):

I always thought you could just add an overlay color idk

san s писал(а):

https://youtu.be/69__pyN8UhE

Gummy Bear писал(а):

This is superb

Gregorie Morales писал(а):

1:35 how ironic i had the same tank right next to me as i watched the video... Its Panzer VI Panther Ausf A btw

Ed Zwanenvelt писал(а):

Really, really great work and video. Except that "Howard Carter" is Lord Carnarvon. But never mind...

V1 Gibby писал(а):

I thought you could just make an algorithm to translate the amount of dark and white points in to colors. For example green is more black than yellow, in a black and white picture.

Dylan Taylor писал(а):

that looks like a ton of work for sure

Keegan Carney писал(а):

If it really bothers you that much that somebody is colonizing a picture, just hang the black and white version on your wall and then sit on your thumb.

Kevin Griffen jr писал(а):

The one of David Attenborough is amazing

The Soothsayer42 писал(а):

It's a common misconception that only old photos and videos were black and white, but this isn't true. Prior to the mid sixties the entire world appeared only in black and white due to there being more ozone and antiquated lighting. So the next time you're hating on global warming just think about how much more beautiful the world is now because of it.

Colorless писал(а):

Colorizing isn't new to artists who color over a value map First, the artist paints with a vast range of grays, white, and black, then, multiple layers are overlapped with different colors in a specific setting for those layers, of which can be "colorize" So colorizers basically do that, but without the painting from scratch

Waytooedgy писал(а):

Obesssive?