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[Tutorial] GIMP: Make backgrounds (areas) transparent

posted 2011-08-21T14:57:40+00:00

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Hollow-Ichigo_old

Joined August 2011

Topic Starter

Hollow-Ichigo_old 2011-08-21T14:57:40+00:00

Uhm... I'm not sure where to post this... I haven't seen such a tutorial yet, so I decided to make one myself.
GIMP is a great freeware; you can download it here: http://www.gimp.org/downloads/

Well now the tutorial... (My GIMP version is german; I'm sorry for that...)

That's how the pic looks like before anything is done

Depending on the size of the image, you may have to to change the magnification scale (?). Here I chose 400%, because the image is tiny.

You have to add an alpha channel

Now to the tool box
1) choose the tool "Filler" (?)
2) click on "BG-Colour" (I think it's BG-Colour, because of "background")
3) click on the Drop-Down-Menu
4) choose "remove colour" (?)
By the way... by choosing "Opacity" (between Point 2 and 3 on the pic) you can make the area something between completely transparent and not transparent. That's how I make my hitcircles (I chose 30%)

Now you have only one more thing to do: select the areas which you want to be transparent.

That's what the image looks like after making the background transparent

Hope I could help

Comments are welcome

Last edited by Hollow-Ichigo_old 2011-08-22T10:46:42+00:00, edited 3 times in total.

Ekaru

Joined July 2008

Ekaru 2011-08-21T23:39:58+00:00

I could've used this years ago!

*adds to list of useful guides*

ziin

Joined January 2010

ziin 2011-08-23T04:53:06+00:00

Take an image that has a varying background.

Make a new layer, then paint over the part you want to keep.

this will take a while

Once you have the outline done, use the fuzzy select tool (shortcut "u"), select the empty area in the middle, and go to select -> grow -> 1

you only need the outline at first

Fill the area by pressing ctrl+b and make sure you fill the whole selection

it's easier to bucket fill than to paint

^ click that or press "shift" when you click the image to fill

Right click on the layer and press "alpha to selection"

you can also right click on the layer and press "p"

Copy/Paste the original layer

you may notice some extra stuff on the edges

You can take a look at it on a black background to see where else you may need to erase.

You can either manually erase them or play around with the image until you get it right. You can also do what the previous tutorial describes.

par-ty-par-ty

par-ty-par-ty 2014-07-03T23:11:50+00:00

telll the colour i got to choose in MS paint.....your professional-programm stuff don´t help anyone

not all players are like IT-Pro´s

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