[Leica] Photoshop Colorize Filter Experiment

[Jayanand Govindaraj]

Very interesting. Looks like Kodachrome to me. Worth experimenting a bit.
TFS

Cheers
Jayanand

On Sun, Oct 16, 2022 at 5:05 AM Aram Langhans via LUG <lug at leica-users.org>
wrote:

> I am at my father-in-law's so I get to play around with the latest
> versions of PS and LR.  I am still using CS6 and LR6.  Not sure if
> anyone noticed the new neural filters that have been added a while
> back.  One of them is colorize.  With one click it will take a B&W and
> turn it into color.  I thought I'd give it a try.  I just did the one
> click thing and did not play around much with the adjustments, and I
> accepted what it did without choosing if I was satisfied or not.  I
> think that if you say that maybe it will try again and maybe learn what
> you like.  Maybe a different experiment later.
>
> Since all his shots are color, I downloaded a few B&W shots from the
> internet and gave it a try.  The first one is a famous Ansel Adams shot
> in Yosemite from Tunnel view.
>
> untitled-2-3 (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-2-3.jpg.html>
>
> untitled-2-4 (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-2-4.jpg.html>
>
> Not bad.  This one I did lower the contrast.
>
> Next a Grand Canyon shot
>
> untitled-2 (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-2.jpg.html>
>
> untitled-2-2 (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-2-2.jpg.html>  I
> did play with this a small amount.
>
> So I said, what about people?  Here is a market shot.
>
> untitled-2-5 (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-2-5.jpg.html>
>
> untitled-2-6 (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-2-6.jpg.html>
>
> My wife said how did it know she was in a blue coat?  Of course, it did
> not, but make some kind of choice.  So, I though I would try something
> else.
>
> I took a few of my father-in-law's photos and converted them to B&W and
> then colorized them to see what PS chose to do and how close to reality
> was it.  Original color images are first followed by PS colorized versions
>
> My nephew had a gray outfit on and of course PS did not know it was gray
> from the start.
>
> untitled-9808 (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-9808.jpg.html>
>
> untitled-9808-Edit (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-9808-Edit.jpg.html
> >
>
> Here we all are at Tunnel View in gray shirts.  I wondered if they would
> still be gray.  They were but my sister-in-law's skirt was changed from
> blue to some sort of red.
>
> untitled-0216 (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-0216.jpg.html>
>
> untitled-0216-Edit (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-0216-Edit.jpg.html
> >
>
> And finally what about a flamingo?  Can PS get the feather colors correct?
>
> untitled-0288 (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-0288.jpg.html>
>
> untitled-0288-Edit (leica-users.org)
> <http://gallery.leica-users.org/v/Aram/misc/ce/untitled-0288-Edit.jpg.html
> >
>
> So, you can draw your own conclusions.  For me, I am amazed at what it
> can do. Having done a bit of computer programming way back in the dark
> ages, I am just blown away at the complex calculations that must be
> going on.  And if it is an original B&W with no reference for you to
> compare, I think it did a pretty good job of making some plausible color
> choices, and with some tweaking you might be able to make it look no so
> much like faded Kodachrome but a new photo.
>
> Comments welcome
>
> Aram
>
>
> --
> Aram Langhans
> (Semi) Retired Science Teacher
> & Unemployed photographer
>
> “The Human Genome Project has proved Darwin more right than Darwin himself
> would ever have dared dream.”
>     James D. Watson
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information