the first example is a simple one
all 3 layers ARE from the SAME image
the photo gallery from 1909 used three photographic slides combined to make one image
A more complex one would be Bjorn's post
http://www.unmannedspaceflight.com/index.php?showtopic=7671in synthetically making a red layer and a green and a blue
then alining up all three
in the"fractal noise" and "blue mars" examples above
that started with using a color image and making a custom "gradient" to use to add color
Gimp has a nice built in plugin to do this
( Photoshop ??? i do not use Microsoft software so i do not use photoshop )
and Gimp is GPL'ed
the "noise" one is a merger of 4 or 5 or 6 different images
different gradients and hand painting and working with many many many layers in the image
( and this was only a VERY quickly done image for a old post )
on the B&W image click on
Color / Map / Sample colorize
image layers are like a stack of slides
you stack them on top of each other
i will have to post links to tutorials
but they are going to be for DIFFERENT things
that all can be combined to do something else
unfortunately there really are no "step by step"
general guides to fallow yes , but no real
step1
step2
step3
different tutorials all doing something a bit different
the SAME theory applies to the very expensive Photoshop as to gimp an example of using LAYERS , and a LOT of them
http://tutorialgeek.blogspot.com/2012/11/u...hotos-from.htmla basic one on the gimp web site
http://www.gimp.org/tutorials/Selective_Color/painting
http://www.digitalphotoguide.net/post-prod...ite-photo-gimp/the "sample colorize " plugin
http://docs.gimp.org/en/plug-in-sample-colorize.htmlsome youtube videos
https://www.youtube.com/results?search_quer...0white&sm=1i learned using watercolor and paint brushes on B&W "rag" prints
-- photographic PAPER
digital is WAY EASIER !!!!!
reddit ???? but an example of what can be done
http://www.reddit.com/r/Colorization