<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Depending on your EEG viewing software, you could probably borrow a 4k (or higher) monitor and take the screenshot there. A typical 4k monitor has a resolution of 3840x2160. The resulting screenshot could be displayed at 300 dpi at over 12 inches in width. A 5k monitor at 5120x2880 would allow for a 17 inch width at 300 dpi. <div class=""><br class=""></div><div class="">If your EEG viewer is from within Matlab, you can manually define the size of the figure to be output within the figure properties. <br class=""><div class=""><br class=""></div><div class="">As Christine mentioned, if you are trying to upsample pre-existing screenshots, it is going to be much more difficult and will likely result in blurry images (instead of pixellated ones). </div><div class=""><br class=""></div><div class="">Josh</div><div class=""><br class=""></div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Apr 9, 2019, at 11:22 AM, Blume Christine <<a href="mailto:christine.blume@sbg.ac.at" class="">christine.blume@sbg.ac.at</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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Hi Marcus,
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<div class="">Unfortunately, I think this is not going to work. Artificially, you can increase the resolution, but this is not going to make the picture any better. It is like upsampling an EEG... I am not sure if there is a smoothing function in Photoshop, in which
case I could help.</div>
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<div class="">Best,</div>
<div class="">Christine </div>
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<div dir="ltr" class="">Sent from my iPhone</div>
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Am 09.04.2019 um 19:15 schrieb Markus Gschwind <<a href="mailto:Markus.Gschwind@unige.ch" class="">Markus.Gschwind@unige.ch</a>>:<br class="">
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<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Dear all,</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class="">
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<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Does anyone know how to produce a high-resolution (300 dpi) version of a clinical EEG obtained from a screenshot?</div>
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<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Screenshots have maximally 96 dpi, and when they are increased to poster size they are shaky and the EEG lines become pixelled like stairs...</div>
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<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Is there anyone who could direct us how to convert this screenshot into a 300 dpi publishable image with smooth lines? Photosphop?</div>
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<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thanks in advance,</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Markus</div>
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