ps Color calibration & ps select a color

[vizwhiz]

i am now actively involved in tweaking a 36x24 Design Review Board ps Image

however now that the rendering has been done using only previous color samples

 

that were supplied previously They now have given me some color samples

That They want to be matched as accurately as possible (This is just great)

 

so i am jumping into ps color correcting with both feet (look Ma "no hands")

 

but The results varies from the 11x17 laser printer which looks really good

as compared to the 36x24 color HP plots which are coming out completely

 

different

 

so here is The fun part

 

i am trying to correct 4 elevations at the same time by selecting a specific color

and then modifying This but it seems to affect the entire ps file. since the sky is

 

rendered in the background with the bldg postitioned in front

any changes to The Bldg color seem to affect The sky color, too

 

The Next Time i will definately keep the Backgrnd separate

 

is There a way to select a "color range" and modify ONLY THAT COLOR

without affecting the rest of the file ??

 

i must be missing something

 

Thanks any advice would be greatly appreciated

 

Thanks

 

Randy

 

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i have been using the "curves" and etc options trying to get This done

[Jeff Mottle]

Can you post the image Randy? My first thoughts are to try

 

1. trying using the magic wand to select it (not sure without seeing it)

2. Paint a quick mask to isolate it and then affect the selection. (be sure to save your selection to a channel so you can get back to it again)

3. Cut out the piece of the image that had the object you are trying to edit, use Select -> Color range on the piece and then paste it back in OR just make a quick selection around the object and then use Select->Color range.

[TheAllusionisst]

Another option that works sometimes to calibrate both output devices to match by customizing the output settings. Some printers/drivers allow you to tweak the color profiles, so by trial and error perhaps you could get the large format printer to match your 11x17? Most print shops I believe will do this for you, provide them with a printout to match and have them tweak the output of the device they are using.

 

Example, an Epson printer I use to work at a former job tended to output on the yellow side, so I adjusted just the yellow channel down so that it didn't affect the other colors as much, when I got an output that matched my calibrated monitor, I saved it under a profile setting and could use it when printing.

 

Of course print output isn't my area of expertise, but maybe a print shop could help you out since they do it for a living.