View Full Version : removing color cast


johnm160
01-13-2008, 06:42 PM
Hi gang,

I have been lurking here for quite a while now learning tips and tricks. I have an image now that I thought was going to be easy to fix, but I just can't do it. It has a sepia type color cast that I cannot get rid of, my scanner can get rid of it but it messes up other portions if the image in doing so, besides that cheating. :)

What I also find intresting is that the color cast is not as bad if I scan it into photoshop instead of just scanning it to the desktop with the scanner software.

Could someone please help me out and explain how to correct this?

Full size image here http://www.jramonline.com/img007_med.jpg

Thanks

-John

Stephen A
01-13-2008, 06:59 PM
Uhhh, I took a quick peak at your channels and saw your red channel was blown out, tried playing with selective color but it wasn't doing a very good job - so I toyed with the curves on the red channel (Image > Adjustments > Curves... "...(new method for me)

Pretty good results, in comparison to my best efforts with selective color... after that played with red some more in selective color (Image > Adjustments > Selective Color).

Maybe just a touch yellow still - but I can't tell on account of my poorly configured monitor! >.<

Daviskw
01-13-2008, 07:52 PM
Hi there

I did the same Stephen... played and played... ended up adding color here and there

Butch

johnm160
01-13-2008, 08:05 PM
Thanks guys, Curves is still a bit tough for me to figure out.

This is the best I have been able to do....only worked on the color at this point

The second pic here is what the scanner was able to do on it's own.

Ticks me off that the scanner did a better job then me.

chillin
01-13-2008, 09:01 PM
First I adjusted the levels,
Then the white point in curves (the walk way 222, 255, 255),
and at the end I have (selectively) toned down the saturation a bit

Stuggernaut
01-13-2008, 09:18 PM
Ok this is my first try at this stuff....

I adjusted the levels a little, and then made a curves adjustment layer to mess with a few colors.

Then tweaked the color balance and contrast a bit.

Finally I just cloned the obvious damaged areas for a quick fix.

I don't know how to link the photo like you guys though... :(

Joeven
01-13-2008, 09:21 PM
I adjusted the eye dropper readings on the face using the 5-4-3 rule to start. Then I corrected the white, gray and black points to correct the overall tone without blowing out the highlights or darkest point so it would be printable. No the best job but the numbers look right.


Joe

0lBaldy
01-13-2008, 10:10 PM
Hmmmm, All I did was Levels! On the R, G, B, separately as described at the beginning of this tutorial "Restoring an old photograph" by cameraken:
http://retouchpro.com/tutorials/?m=show&id=255

Then decided to crop and play..
Cropped, Levels, Masked pretty lady, Multiplied 4 times (to darken background), darkened highlights in background, Cleaned up some green spots on lady and lots of dust stuff.
A large version of the crop is here:
http://i37.photobucket.com/albums/e76/grannysdc/OlBaldys%20RetouchPro/img007AB.jpg

........Levels ....... Crop

kambys
01-14-2008, 01:18 AM
this is what I came up with

Liz
01-14-2008, 05:04 AM
I adjusted the eye dropper readings on the face using the 5-4-3 rule to start.

Joe

Hi Joeven...I'm curios about waht you mean by this rule. Cld u explain further pls? Thanks

Alison
01-14-2008, 06:01 AM
Hi John,

I took the easy road :)

Levels adjustment layer, bring the individual channels into the majority of the information.

New Layer>Fill>R 203 ... G 150 .... B 115 ... Image>adjustments>invert. Take the blend mode of the layer to colour and drop the opacity to about 20%. Hue/Sat adjustment layer, boost the sat of the image to what you like.

Go on from there to do any more fixing, levels etc.,

Cassidy
01-14-2008, 08:25 AM
I used Swampy's method of copy layer, filter->blur->average and then invert and set to overlay mode 3 times, then a final levels adjustment

Joeven
01-14-2008, 09:21 AM
Hi Joeven...I'm curios about waht you mean by this rule. Cld u explain further pls? Thanks

Hi Liz. The 5-4-3 rule is the ratio of red to green to blue in the skin tones. Here's a link that will explain it better. I hope this helps

http://training.sessions.edu/resources/free-tutorials/color-correction-tutorial.asp


Joe

lilysharon
01-14-2008, 02:30 PM
I used color balance and variations to start, then a lot of other plays to the point where I lost tract but here's the result.

Kraellin
01-14-2008, 10:57 PM
first thing for me was to brighten things up a bit. no contrast, just brighten. then adjust the colors, and then a bit of enhancing and cleanup.

so,

1. brighten/contrast adjustment layer 50/0

2. color balance adjustment layer, mostly to take the reds down and add a bit of blue on the shadows, midtones and highlights.

3. a tiny bit of clarify to bring some better contrast, but just a tiny bit. +2

4. usm at 2/100/5 for a bit of sharpness.

5. a bit of clone to take out the tear/fold mark, the bad upper right corner and a bit of speck/dust here and there throughout.

i also like the idea of cropping here, though i didnt do it, since i wanted to show all work done.

Wolfman
01-15-2008, 12:51 AM
I 1st cut down the red in hue/saturation, then used Photokit Color to nuetralize
and did some cloning, brighten, sharpen, some noise reduction.

Liz
01-15-2008, 05:00 AM
Thanks for your help and link Joeven

skydog
01-15-2008, 07:30 AM
First I corrected the white balance...swampy method...
Then I opened levels and adjusted the the individual colors until I got something I liked
Then I when to saturation to pump up the color slightly..
Then I used unmask (just a tad) to sharpen...

Kraellin
01-15-2008, 10:52 PM
skydog, i had to laugh a bit here... 'swampy method'. now, some may know what that is... and who that is, but for those that dont, post a link to the 'swampy method' please. we dont want to confuse our readers too much :)

johnm160
01-17-2008, 05:04 AM
Wow,

Thanks for all of the great work I am heading off to work but will read more of the replies later. It's obvious I have a lot to learn yet in photoshop.

What is this 5-4-3 Rule anyway?

John

philbach
01-22-2008, 02:29 PM
Well I used a curves adjustment layer and using the middle eyedropper clicked on the umbrella in the background that I figured was white.

johnm160
01-25-2008, 06:00 PM
Thanks for the info and the great work. I just got back to this photo...I have been busy playing with my new toy. I finally bought a DSLR :) I am gonna keep working on the photo though, it seems like a pretty tough one so its good for learning.

johnm160
01-25-2008, 08:17 PM
here is what I have so far

johnm160
01-25-2008, 08:50 PM
Joeven, thanks for the link that is gonna help alot

Kraellin
01-26-2008, 11:46 PM
johnm160,

you've still got a bit of red cast in there. try 'color balance', 'channel mixer' or maybe a hue/sat adjustment layer and reduce the red overall. definitely lookin better :)

johnm160
01-27-2008, 09:06 AM
Kraellin,

The only one I was able to work for me was Color Balance, I pulled out a bunch of red, I wanted to go further but the picture started to look cold or flat if I took out more.


-John

Kraellin
01-27-2008, 09:35 AM
ok, that got a lot of the red out. maybe we shld call color balance the visine tool :)

you can also mask areas of the image and selectively alter them.

johnm160
01-29-2008, 07:20 AM
LOL maybe I should have just poured visine on the photo, sure would have been quicker. I will try masking on the next photo, that should help also.

John

ms152190
01-29-2008, 09:21 AM
it's a good one.

I took a rather conservative approach...

cardmnal
01-29-2008, 09:45 AM
Used a three levels method.

1. created a levels layer and set white (sidewalk) and black (shadows in trees) points.

2. examined layers (red was in bad shape). Created another levels layer and corrected the red channel only.

3. created another levels layer and adjusted mid-tones.

(I used three levels layers in order to keep my corrections separated and allow me to go back and adjust as needed.)

4. merge layers apply a bit of unsharp mask.

5. a little image repair (clone stamp, etc.).



Alan

klassylady25
01-30-2008, 09:48 AM
http://www.photoworkshop.com/adobe/softwarecinema/Katrin_Eismann/index3.html

Watch all of it for some great insites into working with photos. Just by using some of the little things in this, you can see that the photo is much better. I used KE's color cast trick.

Good Luck,
Candy

johnm160
01-30-2008, 10:05 AM
I started watching a bit of this video and will continue when I get home tonight. Thanks for the link

I want to thank everyone for taking the time to help me out with this image and my continued learning of photoshop. I always like to learn a new tip or trick.


John

zman99
02-02-2008, 01:16 PM
my first post

klassylady25
02-02-2008, 02:43 PM
Here's an interesting way of removing color cast:

1. make a new layer
2. use your dropper tool and find the color that you feel is the color cast shade. This might be yellow, blue, green and in this case orange/yellow. Depending on your set-up it is now your Foreground or your background color.
3. edt>fill> foreground/background color
4. invert
5. set to color
6. move opacity slider till you see the desired result.

johnm160
02-04-2008, 10:14 AM
looks good zman thanks,

Candice, your right that is a pretty intresting way to go about it, I am gonna try that too.

john718
02-04-2008, 12:32 PM
This is my first post. I used levels, curves, color balance, hue/sat, and then
brightness/cont.

Kraellin
02-04-2008, 11:22 PM
welcome to RetouchPRO, zman99 and john718.