the warrior Posted September 22, 2014 Share #1 Posted September 22, 2014 Advertisement (gone after registration) Hello friends. It can become a picture of black and white to color ? Greetings. Link to post Share on other sites More sharing options...
Advertisement Posted September 22, 2014 Posted September 22, 2014 Hi the warrior, Take a look here B/N digital to colour ???. I'm sure you'll find what you were looking for!
jaapv Posted September 22, 2014 Share #2 Posted September 22, 2014 Oh yes - you just need a tripod, three colour filters red, green and blue ( or cyan, magenta and yellow) and a fairly stationary subject. Link to post Share on other sites More sharing options...
wattsy Posted September 22, 2014 Share #3 Posted September 22, 2014 It was one of the first things I wanted to try when I bought the Monochrom a couple of years ago. I thought I'd do more but never really got around to it since. Untitled by Ian_Watts, on Flickr Untitled by Ian_Watts, on Flickr Link to post Share on other sites More sharing options...
250swb Posted September 22, 2014 Share #4 Posted September 22, 2014 Here is another made with the Leica Monochrom Camera on tripod and three exposures with red green and blue filters. The respective exposures were then each 'colourised' red, green and blue in Photoshop, then the three images blended equally. Changing the strength of the filter, and the percentage of blending for each colour in Photoshop can considerably refine the outcome. Like Ian I never followed the experiment up but it was fun nevertheless. Steve Link to post Share on other sites More sharing options...
spydrxx Posted September 22, 2014 Share #5 Posted September 22, 2014 I used to do this with film cameras & B&W film in the 1960s to demonstrate to science classes - except that I used three projectors and a screen. Black magic never had it as good....people were blown away. I found that you can actually get away with doing it in only 2 colors if you aren't too picky (I used red & blue filters). Link to post Share on other sites More sharing options...
erl Posted September 23, 2014 Share #6 Posted September 23, 2014 Fascinating results, but I'm glad someone else did the work. Something I might consider when I retire from being retired. Link to post Share on other sites More sharing options...
mjh Posted September 23, 2014 Share #7 Posted September 23, 2014 Advertisement (gone after registration) The respective exposures were then each 'colourised' red, green and blue in Photoshop, then the three images blended equally. My recommendation is to switch to ‘Channels’ and paste each of the three monochrome images into the matching RGB channel. Then switch back to the ‘Layers’ tab, create a ‘Curves’ adjustment layer and mix the channels to your heart’s content. Individual curves for the red, green, and blue channel are much more powerful than just blending layers. If you are striving for realistic colours it would be a good idea to take a picture (well, three pictures) of a ColorChecker target to profile the filters used. Of course the RGB image of the target would be created without an adjustment layer or any other modification; just insert the three images into the corresponding channels and save the result. Link to post Share on other sites More sharing options...
jaapv Posted September 23, 2014 Share #8 Posted September 23, 2014 It is wonderful to see the colour shifts in moving objects, like the clouds in Ian's second shot Link to post Share on other sites More sharing options...
pop Posted September 23, 2014 Share #9 Posted September 23, 2014 It is wonderful to see the colour shifts in moving objects, like the clouds in Ian's second shot Red clouds: moving away from viewer. Link to post Share on other sites More sharing options...
luigi bertolotti Posted September 23, 2014 Share #10 Posted September 23, 2014 Red clouds: moving away from viewer. Yea... the famous "Red Shift" of far galaxyes... Fascinating exercise... from the series "nothing new under the Sun"... Leitz "mixed the channels" 80 years ago around... Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/234346-bn-digital-to-colour/?do=findComment&comment=2676705'>More sharing options...
Nick_S Posted October 1, 2014 Share #11 Posted October 1, 2014 How does that Leitz filter work, it just looks like parallel strips of coloured glass? Nick Link to post Share on other sites More sharing options...
luigi bertolotti Posted October 1, 2014 Share #12 Posted October 1, 2014 It was an Agfacolor system that used a special film with micro/lenticular surface made for slide projection... with the projector that used a similar filter in front of its lens... long to explain... one can find the short history of it on the Net (it was soon killed by the Kodachrome system) , in German, for instance Linsenrasterverfahren – Wikipedia ; the above Hektor 7,3cm was made for this odd colr system, and similar filters were availble also for the Summar 5cm f2 Link to post Share on other sites More sharing options...
adan Posted October 1, 2014 Share #13 Posted October 1, 2014 One of my college instructors was doing "color separations" with three filtered exposures onto 4x5 B&W film when I was in school. Reassembled the images into color using the dye transfer process. Museum of Contemporary Photography Wasn't new even then - physicist James Clerk Maxwell was the first to do it (1861), in demonstrating that the eye really only needs to see the three primary colors in order to see all colors as mixtures of those three. First Color Photograph BTW - Ian and Steve - I like what you achieved. Both soft and saturated colors. It is a great way to introduce "serendipity" into a mechanical imaging process. Link to post Share on other sites More sharing options...
Nick_S Posted October 2, 2014 Share #14 Posted October 2, 2014 It was an Agfacolor system that used a special film with micro/lenticular surface made for slide projection... with the projector that used a similar filter in front of its lens... long to explain... one can find the short history of it on the Net (it was soon killed by the Kodachrome system) , in German, for instance Linsenrasterverfahren – Wikipedia ; the above Hektor 7,3cm was made for this odd colr system, and similar filters were availble also for the Summar 5cm f2 Thanks, clearly not a system for current use. Nick Link to post Share on other sites More sharing options...
luigi bertolotti Posted October 2, 2014 Share #15 Posted October 2, 2014 Thanks, clearly not a system for current use. Nick DEFINITELY NOT Link to post Share on other sites More sharing options...
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