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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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

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 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.

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

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.

Ninavi Gumnam писал(а):

In future, our grandchildren would make 360° VR photos from the photos we take today, and gift them on our 90th bday. So make sure you take good photos

Michael Gillette писал(а):

How is the photo quality that good though.

AceOculus писал(а):

RACIST!!!!!!!!!

G2W писал(а):

Can't you just use machine learning?

Sylvia Lopez писал(а):

People in the past seem awfully shy.

Raven Meer писал(а):

Great video  *** Авторизуйтесь, чтобы увидеть ссылку ***   amazing work from the colourists. All you have to do is sit down at your own computer and try colourising a photo (like your younger self at the beach say) and you quickly realise how much sill it takes to do well.

AndrewBrewer917 писал(а):

I like having black and white and the colourized versions right next to each other

John Connor писал(а):

1:14 watching, so far fascinating.

John Connor писал(а):

Why wouldn't they?!

Stranger Artist писал(а):

2:38 that's NOT Howard Carter, That's Actually George Herbert, the 5th Earl of Carnarvon. He was Howard Carter's Partner and sponsor of the excavation. he Lived at Highclere Castle in England. in 1901, he was seriously injured in an automobile accident and although he was not killed, he was very weak. the cold, damp climate of the U.K. would not be good for his health so he visited Egypt for the first time in 1903. he became fascinated by the history and began studying Egyptology. he watched workers in the valley of the kings, but knew that he did not have the expertise or the strength it would take to do it himself, that's where Howard Carter comes in. Lord Carnarvon hired Howard Carter who immediately agreed to work with him in the valley. and, as they say, the rest is history. as a side note, neither Carter nor Carnarvon was killed by "the curse of Tutankhamun" Carter went on to live a healthy life until his death in 1939 of lymphoma. while Carnarvon was bitten by a mosquito, the bite became infected when he was shaving and he was in such poor health that he died of pneumonia two months after the tomb was opened.

Danica Raki писал(а):

i remember turning black & white pictures of my idols into color. i was always using photoshop and i needed about 3 hours, and btw. the final product was nowhere near realistic, but i at least i had fun!

Zacch Canavan писал(а):

That 1875 back tattoo tho

thabo mjiyako писал(а):

This is just  *** Авторизуйтесь, чтобы увидеть ссылку ***   are talented out there!

mancsakacarl писал(а):

1 day , a.i will take these , anaylize the pic lighting to get the perfect colours , then digitally create a 3d image , in v.r to walk round , animated , and interactable , like the holo deck , hopefully , in my times...

Miss Dominique писал(а):

I want to colorized my grandma baby picture

Markta Miarkov писал(а):

When the photos became colorful the story of those photos wasn't far away it was here right in front of me and I could imagine being there in that moment

Sumer Rana писал(а):

Why is he inside a prison? Is it a crime or something

Nazuno писал(а):

viva vox

J S писал(а):

Vox: Colorized photos from history Color blind people: Ight imma head out

moldysandwich5 писал(а):

0:52 that is literally the general store in Rhodes (rdr2)