Fancy halftoning technique.

I've figured out how, in a few minutes and without using any special filters, you can turn this cheesy photo...



... into this two-colour, screenprinting friendly, yet still cheesy illustration.



Here's how you do it:

1. Open your photo in Photoshop, convert to grayscale.

2. Make something like this in Illustrator.



It will be your crosshatching, so it must cover the whole image. White background is a must.

3. Paste it to Photoshop, rasterize. Choose Hard Mix in the Layers menu.

It will start to look bad, without antialiasing.

4. Open the Filters - Blur - Gaussian blur and blur the lines just a little bit. That's when the magic happens.

Play with Gaussian blur and layer transparecy to achieve the desired effect.

You will have to zoom in on this, because it will remain looking bad until you merge layers.

You can also adjust levels on the photo to avoid dead black/white areas.

That's it.

If you want crosshatching:
duplicate both layers,
set new photo layer to Multiply,
flip/rotate/resize the pattern layer ,
fiddle with photo levels (lighten the photo to make the crosshatching appear only on darker areas)

Flatten the image to see the real look.