Hi,

I have a newbie question. I have an image with white foreground. Can you please tell me how can I change the white color to blue color?

Right click on the image

Go to Colours

Then Color to alpha

make sure you select the white and you are done

See http://docs.gimp.org/en/gimp-layer-color-to-alpha.html

OK, the question normally stops at removing the color, my mistake for not adding the next step

create a new layer fill the layer with the desired color move the layer to the bottom.

Owen

But how to change the white color to blue color?

It looks like the below steps change it to transparent.

On Mon, Aug 3, 2009 at 7:26 PM, Owen wrote:

Hi,

I have a newbie question. I have an image with white foreground.  Can
you please tell me how can I change the white color to blue color?

Right click on the image

Go to Colours

Then Color to alpha

make sure you select the white and you are done

See http://docs.gimp.org/en/gimp-layer-color-to-alpha.html --

Owen

Select all the white with magic wand or color select. Make the blue your new foreground color and drag it into the selection. OR if you want all the greyscale information to stay the same you could fill the selection with the blue using the hue mode. You would do that by first selecting the white as above, then go to the toolbox and click the icon that looks like a bucket spilling paint (that's the bucket fill tool). Go to the options for the bucket fill at the bottom of the toolbox and click the little dropdown list next to the word Mode:. Slide down that until you find hue, it's almost to the bottom, and select it. Hue mode means that it will change which color you're using, while leaving intact how intense the color is, and how light or dark the area is. That will keep all your highlights and shading.

Hue - the color (red for example) Saturation - How much of the color (pastel pale pink to intense red) Value - Lightness or darkness. How close to white or black. (dark almost black pale pink to radioactive almost white pale pink)

Patrick