First u will need Photoshop:
http://www.mediafire.com/?12li2kfo7x5iuI'll use part of ur picture for this tutorial
![Image](http://i.imgur.com/ghTog.jpg)
In this tutorial we'll use lots of Polygonal Lasso Tools
![Image](http://i.imgur.com/KRYgB.jpg)
and layers:
![Image](http://i.imgur.com/zSYuD.jpg)
Lock transparency is a very good feature allow u to lock the transparent part of the layer, so that u can edit the un-transparent part without touching the transparent one.
The layers below another will be put "under". I think u get the picture.
To zoom in press ctrl + space, zoom out use ctrl + alt + space, use spacebar to move the canvas.
OK before the tutorial, I must say first that this is a noob way, I don't know if there are any other ways for this but... I'll tell u wat I know
![Wink ;)](./images/smilies/icon_e_wink.gif)
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1.
if u have only one layer and it's named "background", then right click on the layer and choose "layer from background". Name it "line".
then use Ctrl + Alt + Shift + N to create another layer, use the paint bucket tool (G) to make it white and put it under the layer "line".
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2.
Now I want u to select the polygonal lasso tools, if u can't find it, right click and hold the lasso icon on the toolbar, they will let u choose the polygonal lasso tool.
This will let u click and select the "points" for ur selection. Make sure u're selecting the "line" layer. Trace along ur lines and select a region which doesn't have any lines. And delete it.
![Image](http://i.imgur.com/Y8RHv.jpg)
Remember, don't cut the lines. When u're done, it should be like this
![Image](http://i.imgur.com/bvbkz.jpg)
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3.
Now it's time for the transparency lock comes to play, lock the "line" layer and use the brush tool (B), color black to make all the lines black.
![Image](http://i.imgur.com/7l4qU.jpg)
And it's done, cleaning finish
![Wink ;)](./images/smilies/icon_e_wink.gif)
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Hope u understand, I'm not quite good at giving instruction...
I'll do one for screentone shortly...