Changing color of lines.

[white101]

Hi. Is there anyway to change the color of lines in an image?
In a graphic image I tried to upload (But it wouldn't do it) I want to keep the background but want to make the lines a sharp white. (they are kind of a grey)
Is it possible? (There are only lines and a solid color background)
Appreciate any feedback. Thanks.

 

[Paul]

Post the image - let's have a look see mate.

 

[white101]

The upload worked this time! Here it is.

Thanks

 

[white101]

Hey Paul.
I put an image up. Would like to know if changing the color of the lines (To white) while leaving the backdround blue is possible.
If you or anyone doesn't think so i'd appreaciate knowing that too.
Thanks

 

[Stric9]

Like this?

 

[white101]

Cool Stric. So how did you do it?
The diamonds I want to leave as a teal, the cubes and all connecting lines white.
Would appreciate your input. Thanks.

 

[DullJack]

select -> color range

duplicate the original image, put it on the top layer, and hide it for now. go back to your original layer and use select color range to isolate the teal and use levels to make the selected teal white. Now unhide your duplicated layer and add a black layer mask to it. now paint in the parts you want to keep teal with a white brush on the layer mask, use poly lasso to keep your edges straight

 

[Stric9]

I used hue/saturation cyan channel. Lightened the cyan. Used blend if in the blending options dialog box to make it more accurate. If you want the diamonds blue the just paint on the mask to make it not apply there.

 

[white101]

My ISP has been down and with the Thanksgiving holiday here haven't had time to get back to this. Thanks Stric9 and Dull jack for your input.
I've never used color range before. I wasn't able to find any way to isolate the teal lines.
Couldn't find white in the sampled colors either. Perhaps a few step by step instructions would help get me going. Thanks
(Or a link to undrstanding color range better)