"This a very quick simple tutorial and a bit of fun! I
have made a range of different sizes - 50px, 75px, 100px, 150px
patterns so you can easily apply the effect in seconds. I suggest
you try some masking of layers as well to experiment with design :)
"1. Making a Polka Dot Stencil
* Create a new document in GIMP - choose the size of your Polka
Dot (I have ready made ones to download at the end of the
tutorial), Fill with: Transparency, 72 resolution should be
* Open your photograph in GIMP - Duplicate your image if you'd
like to do some Layer Masking later!
* We need to pixelize the photograph to get the single solid
colours for each dot - Go, Filters -> Blur -> Pixelize:"