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I need help to check on colour cast

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  #1  
Old 07-25-2007, 04:41 AM
Zeckson Zeckson is offline
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I need help to check on colour cast

Hello experts,

I would like to request for your kind help looking at this picture attached to see if it has a colour cast of some kind. Many of my friends told me my pictures all have a yellow colour cast on them. Maybe it could be from my Sigma lenses that often give a warm tone to my images. Not too sure.

My notebook LCD is not calibrated. I tried to calibrate using Adobe Gamma provided with CS2 but the results sucks.

I have done retouched on this image. The only thing I am having trouble is whether my image has that yellow cast on it. I have already added a 15% Blue Filter on it.

Please help. Thanks.
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File Type: jpg Test image.jpg (64.1 KB, 76 views)
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  #2  
Old 07-25-2007, 07:21 AM
ratz ratz is offline
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Re: I need help to check on colour cast

Hi Zeckson.
On my monitor it looks fine, no color-cast at all.
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  #3  
Old 07-25-2007, 07:28 AM
BillFrey BillFrey is offline
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Re: I need help to check on colour cast

I don't show a yellow cast at all.

In fact, it's showing a tiny, tiny blue cast.
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  #4  
Old 07-25-2007, 09:32 AM
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Swampy Swampy is offline
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Re: I need help to check on colour cast

I agree with Bill. Just a tiny blue cast. Dupe the background then do a Filter->Blur Average and set that to Over lay mode and see what you get.
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Old 07-25-2007, 01:28 PM
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Britsdad Britsdad is offline
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Re: I need help to check on colour cast

Quote:
Originally Posted by Swampy View Post
I agree with Bill. Just a tiny blue cast. Dupe the background then do a Filter->Blur Average and set that to Over lay mode and see what you get.
Just curious Swampy, what does that do?
By the way I also get the slight blue tint, but it's gone when I do the "Swampy thing"
John
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  #6  
Old 07-25-2007, 02:12 PM
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Daviskw Daviskw is offline
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Re: I need help to check on colour cast

Hi there

I think you need to add a little yellow. Right now you have too much magenta compared to yellow and too much cyan as well... that is why there is a slight blue gray look to the skin.

Perhaps if they are viewing on your monitor your calibration may be the problem

Butch
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  #7  
Old 07-25-2007, 04:08 PM
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philbach philbach is offline
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Using the info palette

I placed a color sampler on her white bow and used the info palette which showed a blue cast. Using a curves adjustment layer I placed the white eyedropper on the bow to correct the color to a neutral white.

I tried swampy's method too and it worked just fine. I'd like to know a little about that too.
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  #8  
Old 07-25-2007, 05:38 PM
Baby Baby is offline
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Re: I need help to check on colour cast

I see a very blue cast...or cyan. I'm not good at picking out which one. But it's definitely too cool. Philbach's result looks good.
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  #9  
Old 07-25-2007, 05:44 PM
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Swampy Swampy is offline
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Re: I need help to check on colour cast

Britsdad...

>>> It's from my "Average-Blur" Tutorial. It removes an overall color cast for some, but not all photos.
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  #10  
Old 07-25-2007, 10:19 PM
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Dave.Cox Dave.Cox is offline
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Re: I need help to check on colour cast

There is certainly no yellow cast, in fact very little yellow in the picture at all. I think the skin tones look really good. I don't think you have a blue cast either, and though you could add a touch of green in the highlights (Opposite of Magenta), I think that is just personal taste. You can use the info palette to determine the actual color that is on the screen. A good check is to find a very white spot and look for 255,255,255 to see if you have a color cast. The ribbon is very close to that.
Nice Photo.

Dave.
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