[Eeglablist] How to obtain a clinical EEG for publication (photoshop?)

[Markus Gschwind]

Dear all,

Does anyone know how to produce a high-resolution (300 dpi) version of a
clinical EEG obtained from a screenshot?

Screenshots have maximally 96 dpi, and when they are increased to poster
size they are shaky and the EEG lines become pixelled like stairs...

Is there anyone who could direct us how to convert this screenshot into a
300 dpi publishable image with smooth lines? Photosphop?

Thanks in advance,
Markus