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Selective multiple tone adjustment
I been thinking about it for some time now. In my younger days with Deluxe Paint on Amiga I could replace the palette of the image entirely, thus being able to control each colour precisely. Now in the Photoshop age I am looking for most precise way to tone an image using a separate high/mid/low tones adjustments while keeping contamination and separation to minimum possible. Can it be done at all? PS without Camera RAW split toning and Nik Viveza! Jun 20 13 02:32 am Link you'll have to dive into learning how to make luminosity masks of your own. here is where I and probably everybody else started learning: http://goodlight.us/writing/luminositym … sks-1.html There are more advanced ways once you figure out the ones above. pm me if needed. Jun 20 13 02:47 am Link Great stuff mate! Will check it out. Really appreciate your comments - instead of laying everything out you stimulate my thinking process when you point me in a direction of solution  Jun 20 13 03:25 am Link a really simple way is just to use color range and in the pull down menu all the colors are listed. Jun 20 13 04:17 am Link R G wrote: Don't have Photoshop at hand atm. The selection palette should be there, right? Jun 20 13 05:19 am Link R.EYE.R wrote: I am no expert, but take a look at Image>>Adjustments>>Gradient Map Jun 20 13 07:11 pm Link Well, I'm no expert either, but you can make very precise luminosity masks by creating black and white gradient maps from the image's luminosty. You can make a mask that is black from 0% to 12%, ramps up to white by 19%, stays white until 37% and then falls softly back to black by 56% if you want. Then you can use that as a layer mask to control one color version of an image over another. You can layer as many as you want with precision. Probably could do something similar with blend-if sliders. Jun 20 13 07:20 pm Link Thank you for your input everyone! Sincerely appreciated! Looks like we now have several methods with various precision levels which is fantastic! It should allow flexibility in control of saturation in direct corellation to image's theme and end means! I found Kuyper's article rather easy to digest - makes a lot of sense. Gradient maps and colour range should allow to apply the effect quicker for "less important" work! Superb!!! Jun 20 13 09:30 pm Link A mini update if you will: Channel mixer and gradient maps seem to do the trick, albeit a bit primitively imho. Luminosity masks (as per Kyuper's article) do have fair spread. I still haven't tried to narrow down selections as he described. I seem to get a more subdued coloration when combining luminosity adjustments with adjustment layers clipped to them. My avatar image was adjusted that way (I think I went a little haywire on d&b though).. All in all, this adds a neat saturation control to the processing. I am still looking for a colour replacement method that would essentially replace a tone within the image..but I guess without masking, adjusting and painting in maske there is not much to do... Jul 17 13 10:28 pm Link R.EYE.R wrote: If somebody need it, or if you want to save 10$, you can use mine. Had nothing else to do, so I made it. R.EYE.R wrote: Tone is luminosity (darker or lighter), not color. If you talking chromatic reduction it's black and white points to produce neutral gray. Not exactly understand what you need. Jul 18 13 11:34 am Link Tulack wrote: R.EYE.R wrote: If somebody need it, or if you want to save 10$, you can use mine. Had nothing else to do, so I made it. Much obliged! Jul 18 13 10:23 pm Link OOOH I get it, you want to select the color without making a mask! Well just use channels to select? Then refine that mask in the simplest way. It's like hm... this differs in luminosity on a blue channel, so I select it, then it is different in color to what I don't need, so I remove what I don't need from selection via selective color, and then just use the result as a mask for a curve adjustment. It's really simple, and you don't have to mask everything, you just need to know the tools.  Jul 18 13 10:46 pm Link I don't know your knowledge of PS, did you try Hue Saturation? Take a "Hand" and click on color you need. On the bottom of adjustment layer you will see the range of picked color. It would be wide apart. Slide them together. Then put saturation to -100. Take "+color picker" and click on color you need. It will turn to black and white. Only those pixels that Black and white affected by adjustment layer. Keep clicking until all the colors you need are black and white. Then put saturation back to zero. And use hue to change your color. If necessary cover everything with black mask and paint out. Something like that.  Sorry, for taking your image. Jul 18 13 10:49 pm Link Jakov, Tulak - thank you guys. Tulak: don't worry about it. It's great example. I am familiar with colour replacement. Maybe I should have been more specific... This is very close to what I been looking for. Now, problem is - say you have a greenish yellow light source which throws a cast onto face. Changing that range of the colour as well as it's falloff. I think I am just confusing myself and you guys.. Here is what I am after: This is one of my assignments for FM some time ago:  I would love to use the following palette in the shot: http://www.thefilmframes.com/wp-content … r_025c.jpg (I don't think they allow hotlinking to images..) Except, not entire palette, but only yellows and certain tint of blues.. Sorry, I am thinking in DeLuxe Paint terms where I could open image and replace palette of selected colours... I think I am keeping on leading you guys in circles, sorry about that.. Jul 19 13 01:36 am Link R.EYE.R wrote: Like in this tutorial? Jul 19 13 01:48 am Link Camerosity: Interesting method, cheers mate! Wonder if it offers more precise control over exact colour range..... Jul 19 13 02:03 am Link R.EYE.R wrote: Don't know. I haven't tried it. The tutorial was only posted on Wednesday. Jul 19 13 03:43 am Link R.EYE.R wrote: This would be even easier. I thought you don't want to use ACR. Color grading done in LR. Jul 19 13 11:18 am Link Tulack wrote: This looks exceedingly cool atm (on Iphone right now). Jul 21 13 09:30 pm Link ACR is exactly same engine, as LR. Jul 22 13 10:47 am Link As you can see I tried and failed miserably Perhaps I need to review techicality of my approach. I can match colours nearly identically given the the source and destination, but fail to find those using the method alone (I hope I make sense here).. Jul 22 13 09:49 pm Link I don't know what to say. Jul 22 13 11:23 pm Link I reckon I just go on exploring. It's about time I realise that I am no longer living in 16bit 4096 colour palette world Jul 23 13 12:46 am Link Tulack, was your correction of my example relative or absolute? (I was thinking long and hard about this, lol).. Sep 03 13 09:46 pm Link What do you mean? I just took your picture as reference. Here is an example. http://www.youtube.com/watch?v=NtTpvxdYbfo Sep 04 13 01:11 am Link Aah, so it's relative then. Basically you matched the result as you were reworking, right? Is there a way to use absolute match? I.e value for value exactly? Sep 04 13 03:38 am Link Depends on picture. Colors are relative. Sep 04 13 06:58 am Link Here's another tutorial. Aaron goes through the process twice to change the hue of two color ranges. I suppose you could keep repeating it ad infinitum. http://phlearn.com/use-hue-saturation-t … to-a-photo Sep 04 13 12:27 pm Link Not exactly what needed. We are talking processing hundreds or thousands pictures in seconds. Sep 04 13 03:35 pm Link Well, colour reproduction is indeed relative. I am just interested if absolute correction is possible given destination value. Perhaps it's not a feasible option because of coplexity involving neighbouring colours in cases where corrected values are part of a range (as gradients in a tinted light source falloff for instance). Actually considering the differences in sensor designs it will be nearly impossible to replicate results evenly. Sep 04 13 09:10 pm Link |
