Blacking out pencil in PS, please help.

[WanderingProphet]

I'm not sure if any of you have read the Gunslinger Born comic, but their was a sketchbook to it that showed how the colorist took Jae Lee's genius pencil work and "blacked it out" making it appear as it it were inked by the best inker in the history of inkers. How can I get this result with PS, as a penciller who can't afford an inker. Any and all help is widely appreciated.

[emily g]

There's a couple of ways to do this. One way is to fool with the levels and make the pencil lines look really dark.

Another is to isolate the pencil work on its own layer. Then in the "Lock" area of the layers palette, choose the first option "Lock transparent pixels."
Then paint over the whole thing with black. Only the pencil lines will be affected.

A third way is to select all the pencil work, create a new layer, and just "fill" the whole selection with black. This may or may not look good depending on how good your selection was.

To make a really nice selection of the linework, select the whole image and copy it. Then go to your channels palette, create a new channel, and paste the whole thing in there. Hold down alt and click on the new channel to load it as a selection. Then invert the selection through Select-->Inverse or Shift+Ctrl+I. Ta da, a perfect selection!