Photoshop: Make a background transparent using Paint Bucket tool

I have a gif image which has a black shape on a white background.  I wondered if there was a way of changing the white background to transparent using the paint bucket tool? (the same way I could make the white background purple, blue etc).  
dvsukAsked:
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MHenryCommented:
dvsuk,

You can use the magic eraser to remove a background. If there is enough contrast, it will work fine.

Best,

MH
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SlynkyCommented:
Hi, dvsuk,

There is no way to "flood fill" or "brush paint" the 'color' of transparency in PS.  

So, the short answer to your question of using the paint bucket tool to paint something to transparency is it's not possible.

Sorry   :-)

Regards,
Slynky
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aplimediaCommented:
Hi dvsuk,

If I am getting you right, you want to discard a colour or background in a gif.

There are many ways to everyting in photoshop, but if the contrast is sufficient then I would suggest you open your image in photoshop then along the top of the screen go to

Image > Mode > Select RGB Colour (Or however Adobe have chosen to spell it!)

Now on the layers pallet, double clicl on the default layer that is there. this simply Unlocks it. If we do not do this, when we delete the selected colour of shape, it will be replaced by the default background colour of your colour swatch.

Now on the tools pallet select the Magic wand tool.(Press 'W'). Now click on the colour shape you want to eliminate. Before you do anuyhing else look to see how accurate the wand has been. If its overlapped, then its too high in tolerance, and vice a versa. Adjust the tolerance alone the top. (Its is a percentage) and try again.

When you are happy with the selection simply press the delete button and Ctrl & D to deselect the selction.

Now file > Save for the > web > Select Gif...  And Transparency...  thats You!

Hope this helps

Aplimedia
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SlynkyCommented:
MHenry,

Though I could be wroing, the questioner asked specifically about the ability to do it with the paint bucket tool.  If the intent was to learn how to make a certain color transparent (with ANY tool), I assume the questioner could have phrased it that way.

Cheers!
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aplimediaCommented:
Hi Slynky

There are times when you must read throught the lines...  :-)

Good ton see you again... so to speak.
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SlynkyCommented:
aplimedia,

Yeah, caught your comment on the vector question...LOL.

Read between the lines?  Possibly (the reason I said, I could be wrong) but, hopefully, a person attempting to use PS would be able to ask how to make something tansparent in a way that's clear.  Otherwise, I'd be cautious of their ability to ever comprehend PS.

Cheers!
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MHenryCommented:
Slynky,

I know you are aware therr are other options for doing this, and I recognized your answering the question literally. That's why I only offered up ONE way of doing this. I thought it might help spur the question in the right direction if dvsuk was looking for a way to do it instead of specifically using the paint bucket tool. And I figured you would be glad to answer from there.

Best,

MH
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dvsukAuthor Commented:
The above solution worked well.  There have been a number of occasions where I have wanted to change a set colour to transparent and have not be able to.  This particular project was a simple shape which I managed to cut using the magic wand tool (after a bit of tweaking).  However, some projects are a little more complicated which is why I went down the paint/flood fill route (as it seems pretty obvious to me - if you can flood with any colour, why not with no colour?).  I appreciate the effort that MHenry and aplimedia have gone to in understanding the problem and coming up with a solution rather than just answering my specific question (which wasn't deliberately phrased incorrectly!).

MHenry - Thanks, your suggestion which worked well for this project.
aplimedia - Although not first, your detailed instructions certainly helped and should help people who search on here in the future - thanks.
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SlynkyCommented:
Touche', guys!  *bows*
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