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How do you autofill all like colors on an image in Adobe Photoshop, or Illustrator CS3

I have an image that has literally thousands of like colored dots on a page it is the outline of the worlds continents. They are the same color which may be good. However is there a way I can click on and dots in the image and change it globally on the image. I could spend a week doing this is there a way to do all of these at once? Please advise you Adobe Guru's I am a newbie?
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ruavol2
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ruavol2
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3 Solutions
 
creationdepotCommented:
In Photoshop there are two ways you can do this. The easiest way (also use this method in Illustrator) is to open up your swatches panel, right click on the color the dots are, and go to options. Here you can adjust the color, okay the change, and it should change everythign across the board. The second way in Photoshop only, is to go up to select - > color range. Eye dropper tool the color of the dot somewhere on the image, okay, then choose your new color and fill. Let me know if you need any clarification!
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captainCommented:
Hi

do you mean that you have let's say 5000 red dots and you now want to change random dots to end up with 2000 orange 1000 green 1000 blue and 1000 red?

capt.
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BongSooCommented:
It would help to know what format the image is in.
Assuming you want to change all the dots to the same color:
Photoshop: Make sure you have the color you want the dots to be chosen in the Foreground color picker in the Tools palette. Next, using the magic wand, set your Tolerance low (like 3-5, but not zero), and turn off Contiguous and then click on one of the dots. This should select every pixel in the file that is the same color. Then, it is a simple as going to Edit > Fill and use Foreground color to fill each of the dots with the correct color.
Illustrator. Select one of the dots, go to Select > Same fill. This will select all dots, then you can change either the Stroke, the Fill or Both at the same time.
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ruavol2Author Commented:
I will upload the file and you can let me know if this is possible. Sorry for my poorly worded question. I am just clueless. We might very well change the dots to multiple colors but not initially. That is an excellent idea to persue. No that you mention it would be a good thing to know how to do that in addition to the intial question. Please feel free to advise. I will credit points accordingly.
showcase-bg.png
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captainCommented:
Hi

If these are vector objects in Illustrator than you simply select them all and change the colour using the colour slider (Window menu => colour) or follow any of the guidelines above

If they are images you should do this in PS as per BongSoo's instruction

Multi colouring:
If you have indeed objects you should group them or even stick them on different layers. i would duplicate the layer you have times the amount of different colours you like, lets say you want each continent to have a different colour you duplicate this one five times and use the Illustrator way to change each layer's colour. Now you simply delete the unneeded ones from each layer.

I would keep another mater layer and hide it just in case you delete one too many...

Tired will go to bed if you have more Qs you are in good hands with the experts above...

hth
capt.
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ruavol2Author Commented:
Whenever I do exactly as you say all three of you I get this weird wavy kind of occilation that does not seem to allow me to do any filling or anything along the lines you described. Any thoughts on that. I was using photoshop. It actually does not work in Illustrator.
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captainCommented:
Hi

was the file you uploaded the actual file? I thought you just saved a screen shot....

If that is the case, you be far better off to invest the time now and recreate this in Illustrator rather than mess around with a PNG source file.

If you map out a new document with your PNG enlarged in the background, locked (CTRL+2) and then create a circle using the circle tool. Don't draw it but click on the page to bring up the dimension dialog. Enter a size that you like, you may want to copy the one of the PNG but also you may want to change it.

For this exercise I assume you have millimeters as units, so let's say you picked 5mm diameter and selected red as a fill with no stroke.

Now decide on the gap between each circle, let's say you want 4mm to have them narrower to each other. Select Menu item (MI) Object|Transform => move and enter 4mm into your horizontal field and 0mm in the vertical. Now select Copy instead of Ok for the move.

Now you should have 2 circles. If you now press CTRL+D you repeat the Copy in the same lateral way. repeat this multiple times to create a row as long as you need it to be.

For creating a vertical row do the process with values reversed for h&v. You can also copy whole rows by selecting all circles and then doing the Copy operation.

Depending on which version of Illustrator you have you can also create a sequence of objects in one go rather than using repeat actions, but I cannot with mine :(

By creating the copies of the circles you slowly build up the shape of the world, deleting the circles outside of this shape. This way as you create the map line by line you can group continents (CTRL+G) and move them to different layers to do the colouring I suggested in my post above.

The good part is that you now have a master object in maximum resolution that you can port into PS for any use you like.

hth
capt.
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creationdepotCommented:
In Photoshop, if they're all the same color just do Ctrl - U, and this will bring up your Hue panel. Here you can adjust all the colors at once (works because your background is white - if you ever change that, this method will also change the background). Now to only change a particular section, use your lasso tool, select the particular area, and then do Ctrl - U.

I'm not sure what the Mac shortcut would be, but the long way of getting to the Hue dialog box is Image - > Adjustments -> Hue/Saturation.

Hope this helps! This method will also work with your PNG file or if it's a different format other than GIF.
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creationdepotCommented:
It does work with GIF (Indexed Colors), just tried it. :)
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ruavol2Author Commented:
This is what I am getting I am not sure what to do but I am not able to change the colors like you said I could. Could there be setting I have on that you don't could someone open the file I uploaded and try. Please advise.

AdobePhotoshopError.png
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creationdepotCommented:
Just do what it says, go to images - > Modes - > RGB, that'll fix it for you. Sorry it allowed me to do it on the image you posted, but I have CS3. That might have something to do with it.
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captainCommented:
Hi ruavol2

It may help if you tell us what you want to achieve, otherwise we may end up on a chase without giving you proper help for what you really need (cause/symptoms principle).

Any edit on a PNG will limit you somewhat to the poor quality of the original, hence my post earlier. If you are happy with the PNG approach please let us know.

thx
capt
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ruavol2Author Commented:
That will do it I am just a newbie. Thank you gentlemen.
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