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b&w to b&transparent

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b&w to b&transparent mickeydog 30 Mar 08:17
  b&w to b&transparent Andreas Waechter 30 Mar 08:20
  b&w to b&transparent Mateusz Misiorny 30 Mar 09:32
  b&w to b&transparent Dave Neary 30 Mar 09:39
   b&w to b&transparent mickeydog 30 Mar 19:25
mickeydog
2006-03-30 08:17:22 UTC (about 18 years ago)

b&w to b&transparent

I have an image that is 2 colors, black and white. I want to change all the white pixel to transparent. How do I do this?

Andreas Waechter
2006-03-30 08:20:42 UTC (about 18 years ago)

b&w to b&transparent

mickeydog wrote:

I have an image that is 2 colors, black and white. I want to change all the white pixel to transparent. How do I do this?

Add an alpha channel to the image (if not possible, change image mode from indexed to RGB first) Select by Color (selecting white)
Ctrl-K to clear the selection
Save in a format that supports transparency (i.e. NOT jpg)

Andreas

Mateusz Misiorny
2006-03-30 09:32:28 UTC (about 18 years ago)

b&w to b&transparent

On 3/29/06, mickeydog wrote:

I have an image that is 2 colors, black and white. I want to change all the white pixel to transparent. How do I do this?

Filters -> Colors -> Color to Alpha

HTH, Mati

Dave Neary
2006-03-30 09:39:28 UTC (about 18 years ago)

b&w to b&transparent

Hi,

I would copy the layer, paste it into a layer mask (add layer mask->from selection), and invert the mask.

Cheers, Dave.

mickeydog wrote:

I have an image that is 2 colors, black and white. I want to change all the white pixel to transparent. How do I do this?

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mickeydog
2006-03-30 19:25:00 UTC (about 18 years ago)

b&w to b&transparent

thanks for the replies, got it now.