Re-coloring an image w/specific values?

I need to change the color of a vehicle to given rgb and cmyk values, while maintaining original detail.

Where and How is this done in Photoshop?
DeSignAsked:
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forkbeardCommented:
I don't think you can do what you are asking for.  You can change the Hue, Saturation and Lightness of a specific color(s) to another but I don't think it is possible to change the color to CMYK or RGB values.  What makes your request difficult is the lighting and shadow differences of an image.  If your object was a flat color it wouldn't be difficult at all but to change the color of a vehicle (ex. car, truck, airplane...) with many shades of color and brightness... how do you decide whick part of the vehicle you want to be that specific color.  You could drop a flat color in your specific value overtop the vehicle but you would lose the texture and detail.  Do you really need to match a specific color.  What is you use for the image.

If you vehicle is white you might get away with dropping a flat color over the top on a new layer and then adjusting the layer to multiply.

If your vehicle is not white I would try using Replace color.  It is found in the menu bar under "Image" then down to "Adjust" and then over to "Replace Color"  In this new window you can see a small detail of your image.  If not make sure the button underneath the large square is set to Image rather than Selection.  Near the top of this window is the word Fu zziness: and a slider underneath.  The number represents the amount of similar color it will include.  The larger the number the larger the range of similar color that will be effected.

On the right side underneath the buttons OK, Cancel, Load, and Save there are three eye dropper tools.  Make sure the first one on the left is clicked.  Then click on the color in the small image you want to change.  This color should show up in the Sample block near the bottom.  Then you can than adjust the Hue, Saturation, and Lightness to your desired effect.  If you want to allow more color to be effected increase the Fuzziness, or if less color change is desired, reduce the Fuzziness.  When you are happy hit OK.  Before you start editing the colors, I would duplicate the layer to allow you a version to look back on for reference.
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tim_richardsonCommented:
I have seen this done, so it can.  I'll look up how it was done and answer a.s.a.p.
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fubabeeCommented:
Go to Mode > and choose CYMK from RGB. If you want to change the values from CYMK to RGB it's the same thing.
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DeSignAuthor Commented:
Read the question again.  You don't change VALUES via mode, only mode.
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tim_richardsonCommented:
Ok - this is how you can do it:

Select Image->Adgust->Replace colour.  A dialog box will appear.  From that, use the Eyedropper tool to select the colours you want to change.  You can slide the fuzziness control to increase the amount selected.  Then, use the Hue, Separation and Lightness to the desired colour.

So, if you have a desired RGB or CYMK colour, first find its Hue, Separation and Lightness value, and use this.

I hope this does what you need.
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tim_richardsonCommented:
I have just read forkbeard's answer again, and basically it says the same as mine but in many more words.  Therefore, if forkbeard wants the points, reject my answer, get forkbeard to propose his comment as an answer and give them to him!
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forkbeardCommented:
Could we get some feed back from DeSign?
If the problem isn't solved more information would be appreciated.
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tim_richardsonCommented:
Hi forkbeard.  Sorry about this one.  I have advised him to reject my answer so you can propose one.  Humblest apologies.
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forkbeardCommented:
The autograder / autodelete is a little annoying.  Not the first time I got the short end of the stick because of them.  No hard feelings.
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tim_richardsonCommented:
Sorry :-(  Can I transfer points over to you?
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