RetouchPRO

Go Back   RetouchPRO > Technique > Photo Retouching
Register Blogs FAQ Site Nav Search Today's Posts Mark Forums Read


Photo Retouching "Improving" photos, post-production, correction, etc.

Adding color to white

Reply
 
Thread Tools
  #11  
Old 03-10-2010, 10:34 PM
edgework edgework is offline
Senior Member
 
Join Date: Jul 2004
Location: Brooklyn
Posts: 494
Re: Adding color to white

Quote:
Originally Posted by Dak Paule View Post
I tried my hand at doing the gradient map. I am not sure when you use the Lab color though? When do you?
It's pretty good for putting tone into blown out skin highlights. The healing brush can then add some texture. I find it's cleaner than trying to multiply tones in RGB, or messing with channel blends and whatnot. And for color shifts that are close in value, it works great, but in those situations you might as well stay in RGB. There are some things that can only be accomplished in lab, but you don't always need to go there.

When you want a dark green shirt to go pink or a pale green car to go day-glow orange, gradient maps are the atomic bomb in your arsenal. They're also great for smoothing out skin tones, usually at lower opacities so they don't call attention to themselves. All kinds of nifty things to do with them.
Reply With Quote top
  #12  
Old 03-11-2010, 12:07 AM
pixelzombie pixelzombie is offline
Senior Member
 
Join Date: Jan 2006
Location: chicago
Posts: 1,098
Re: Adding color to white

i am curious about using Gmaps for smoothing out skin, how is that done exactly?
Reply With Quote top
  #13  
Old 03-11-2010, 06:40 AM
thedarkhalf thedarkhalf is offline
Junior Member
 
Join Date: Feb 2008
Posts: 9
Re: Adding color to white

This worked out great!! Spent 2 hours getting the car looking awesome. then the client came back to me and said "you know.. lets keep the car white" <sigh>

still, i learned something new.

And i'd also like to hear how to use gradient Maps for smoothing skin
Reply With Quote top
  #14  
Old 03-11-2010, 02:17 PM
edgework edgework is offline
Senior Member
 
Join Date: Jul 2004
Location: Brooklyn
Posts: 494
Re: Adding color to white

Just keep in mind that the gradient is targeted to values that already exist in the luminosity profile of the image. You have 256 levels of grey so assume you have 256 steps in your gradient. Photoshop just slots the new color onto the old value for each step along the way. If the darkest value in the image is only 30 or 40, everything in the gradient that falls below that will be ignored. You can slide the colors in the gradient around to fit the darks and lights of the image.

That said, the possibilities are limitless. For example, if you wanted to lighten midtones, you could make a gradient with 50% grey at each end and white in the middle, set to Soft Light mode. You can tighten or widen the white band and slide it up and down the value range, to target the specific areas you want to adjust, often to get a more precise result than curves can give you.

For skin tones, you could either build a collection of skin gradients ahead of time, based on finished images with good tone, (always a good idea) or you could start with the image you're working on, sampling across the range from shadows to highlights, adjusting individual colors to make the transitions smooth, then layering it back into your image at, say, 40% opacity. You might try it in color mode, as opposed to normal, and see how they compare. Even in normal mode, if you position your steps to fit the image, you won't be destroying texture. It's not like painting a color, it's substituting one complete range of tones for another. Play around. Once you understand what it's doing, your options are endless.
Reply With Quote top
  #15  
Old 03-11-2010, 11:07 PM
edgework edgework is offline
Senior Member
 
Join Date: Jul 2004
Location: Brooklyn
Posts: 494
Re: Adding color to white

Quote:
Originally Posted by 0lBaldy View Post
I like gradient maps
It looks like you just made a simple ramp from red to white for your gradient. You're passing up the ability to customize your color shift to the detail in the original. In your case, there's a lot more highlight detail to be pulled out. Usually you have to add a few more steps, and position them judiciously.


Gradient Map: http://edgework.tripod.com/redmap.jpg

Car: http://edgework.tripod.com/red_car.jpg
Reply With Quote top
  #16  
Old 03-12-2010, 02:01 AM
0lBaldy's Avatar
0lBaldy 0lBaldy is offline
Senior Member
Patron
 
Join Date: Oct 2007
Posts: 3,580
Re: Adding color to white

Quote:
Originally Posted by edgework View Post
It looks like you just made a simple ramp from red to white for your gradient. You're passing up the ability to customize your color shift to the detail in the original. In your case, there's a lot more highlight detail to be pulled out. Usually you have to add a few more steps, and position them judiciously.


Gradient Map: http://edgework.tripod.com/redmap.jpg

Car: http://edgework.tripod.com/red_car.jpg
Absolutely beautiful rendition..

Introducing someone new to Gradient maps for the first time I wanted to make it as simple as possible so they could get their feet wet.. then get excited enough to explore further.. as I did.. Glad you showed what could be accomplished with a little more work! Thanks for the samples... As I am also a beginner using Gradient maps, It helped me for sure... I think the most points I've ever used is about 5...

still learning and trying to practice cubed daily
Reply With Quote top
Reply

  RetouchPRO > Technique > Photo Retouching


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tutorial 05: Converting a Color Image to Black and White grayscale BW DannyRaphael Photo-Art 101 17 05-22-2011 05:55 PM
Quicker way to seperate White shirts on white bkg ilegales Photo Compositing 7 10-15-2009 10:43 AM
Black and white vs brown and white. Roy G. Biv Photo Restoration 2 06-23-2009 07:17 PM
Completely white background, how to? Bro Photo Photo Retouching 20 03-30-2009 11:47 PM
Adding noise to white backgrounds, who does this? Hendrik Photo Retouching 9 04-16-2008 12:35 AM


All times are GMT -6. The time now is 06:27 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2011, Crawlability, Inc.
Copyright © 2016 Doug Nelson. All Rights Reserved