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

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)

Freyja Sarasvati 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

Linen Gray писал(а):

Arguments can be made for and against colourization. I think the colourized versions give more context for certain age groups. Those of us who grew up with both the real thing and b&w photos can make the leap in our minds. However, that does not mean that the artists are not contributing to modern understanding of history. B&W tends to make things feel less real to the modern world that has grown up with everything in colour. Not to forget that we have been fed colourized photos, deep space telescopic pictures, for years.

The autistic Artist писал(а):

So..... just really good painters?

Henry Herreman писал(а):

I wish I could do things. Sadly I'm too poor for Photoshop

Cape King2233 писал(а):

1:17 Am I the only one that has seen that face tatoo somewhere before

bert fromarketin писал(а):

Haven't pressed play  *** Авторизуйтесь, чтобы увидеть ссылку ***   just having a convo with the homie Randy out in L.A about 4 color seperators and  *** Авторизуйтесь, чтобы увидеть ссылку ***   play

Meghana Kankara писал(а):

such amazing content. thank you so much to the people of VOX !!

I already ate your bread писал(а):

It’s definetly not something incredible tho.. if you have adobe photoshop nothing is impossible.

Xynnful писал(а):

Now to colourize old videos

Chloe McKeon писал(а):

Nah, the world was in black and white back then

FinalLugiaGuardian писал(а):

I have seen an actual old color photos that looked very much like these recolors. Sometimes you cannot tell.

fallenblxssxms писал(а):

This is awesome, it’s like, you’d think back then everything was actually black, but when you see these, it’s more like today. It’s awesome. It’s like another world.

greg cooke писал(а):

Cool

jackawackamoo писал(а):

What about the statue of liberty

Jaden Consterk писал(а):

Next: Make a Colorized Video

Silviu Teodorescu писал(а):

2:17 Am I the only actuall Romanian here?!

B NY писал(а):

i loved every single image, it really does make me feel like i've seen someone like them on the street or something... i hope they keep doing it and uploading images. i love it!!!!

Tom Cat писал(а):

adults always think that coloring books is children's things. wait until they saw this

Kayleen South писал(а):

Wow, I totally thought they added color by knowing what shade of grey or white the color is shown on a black and white photo. Not far fetched but it’s way more complicated than previously thought.

Akuku Christian писал(а):

amazing works