<div>Hello, </div><div><br></div><div>Actually yes, it's helping. Thank you !</div><div>Now I have to choose what method i'll use by doing a compromise between the size of the presentation of my movies and their quality (and directly working on the film files before import them to E-Prime)</div>
<div><br></div><div>Best, </div><div>Soizic</div><div><br><div class="gmail_quote">2013/3/20 Cognitology <span dir="ltr"><<a href="mailto:mspape@cognitology.eu" target="_blank">mspape@cognitology.eu</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi,<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The reason is pretty similar to the common problem in resizing: there’s only so many pixels. Imagine you have 5x5 pixels and want to draw an X:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">10001<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">01010<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">00100<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">01010<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">10001<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Would be more or less it (imagine 1 being a different colour from 0). Now, resizing it by a factor of two shouldn’t be too hard:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">1100000011<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">1100000011<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0011001100<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0011001100<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0000110000<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0000110000<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0011001100<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0011001100<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">1100000011<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">1100000011<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">There, the pixels are just really big now. So, you might as well have used twice as low a resolution – should be better, performance-wise.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">In any case, imagine you wanted to resize by a factor of 1.4 (7x7 pixels) instead of 2. Without any type of anti-aliasing going on, you could get something like<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">1000001<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0110110<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0110110<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0001000<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0110110<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">0110110<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">1000001<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">(here, I arbitrarily decided to double pixels 2 and 4, because I’m not sure how the rounding is handled).<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Which rather distorts the beautiful X. Anti-aliasing could diminish the effect of such distortions by using a type of blurring filter, but as far as I know, E-Prime doesn’t do this by default. If you want to see the difference in effect, try copying a smallish image to MSPaint (I did print screen, start>run>mspaint, copied a screenshot to mspaint, moved everything out of sight, copied the start logo), then scale everything up by some sort of factor. Doesn’t look so good… Notice what happens if you scale something up by a factor, copy the effect you have, then scale it down to previous size: it looks worse than it did. The results of such a test are attached (hopefully it gets through, one never knows with groups):<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Upper left: start button, original.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Lower left: start button, resized x 2, maintained aspect ratio, resized back (x 0.5). Looks as good as original.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Upper right: start button resized x 1.5, maintained aspect ratio, resized back (x ca. 0.67), notice distortion is visible in horizontal line the windows flag. Upper left (red bit) has become a straight line, the upper right (green bit) became pixilated. <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Lower right: start button resized a few times, didn’t maintain aspect ratio. It looks bad.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">So, even if you maintain aspect ratio throughout, artifacts are pretty inevitable and at best you’re just displaying images at a lower resolution. This makes a certain sense, of course, as the type of enlarging that actually adds details (CSI style, or so I’m told) hasn’t been invented yet. <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Of course, everything here counts for video images as well as static images, except for the fact that movement and such hides quite a lot. <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hope that helps!<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Best,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Michiel<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:e-prime@googlegroups.com" target="_blank">e-prime@googlegroups.com</a> [mailto:<a href="mailto:e-prime@googlegroups.com" target="_blank">e-prime@googlegroups.com</a>] <b>On Behalf Of </b>Soizic Argaud<br>
<b>Sent:</b> 19. March 2013 20:14<br><b>To:</b> <a href="mailto:e-prime@googlegroups.com" target="_blank">e-prime@googlegroups.com</a><br><b>Subject:</b> Re: presentation of movies in full screen<u></u><u></u></span></p></div>
<div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Hi, <u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Thank you for your answer. I tried the short one but it didn't work. So I took your advice (better answer) and I resized my stimuli "out of" E-Prime. Doing this, it's ok. But I still don't understand why I can't modify easily the size of my film excerpts in E-Prime.<u></u><u></u></p>
</div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Best, <u></u><u></u></p></div><div><p class="MsoNormal">Soizic<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div>
<div><p class="MsoNormal">2013/3/19 Cognitology <<a href="mailto:mspape@cognitology.eu" target="_blank">mspape@cognitology.eu</a>><u></u><u></u></p><div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi,</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Short answer: Use a moviedisplay, set size to 100% (it’s 75% by default now), and turn Stretch on. You can keep the aspect ratio (e.g. Stretch mode LeftRight) as is or distort it into submission (stretch mode Both). </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Better answer: first, find out at which resolution your experiment is running. Is it widescreen? Is your monitor? What resolution are the movies? Then, consider re-encoding the movies to fit your resolution; though quite a few options are possible in E-Prime as outlined above, it makes a certain amount of sense to be very sure of your stimuli rather than fiddling around with them at runtime!</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Best,</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Michiel</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
<div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:e-prime@googlegroups.com" target="_blank">e-prime@googlegroups.com</a> [mailto:<a href="mailto:e-prime@googlegroups.com" target="_blank">e-prime@googlegroups.com</a>] <b>On Behalf Of </b>Soizic Argaud<br>
<b>Sent:</b> 19. March 2013 16:17<br><b>To:</b> <a href="mailto:e-prime@googlegroups.com" target="_blank">e-prime@googlegroups.com</a>; Soizic Argaud<br><b>Subject:</b> presentation of movies in full screen</span><u></u><u></u></p>
</div><div><div><p class="MsoNormal"> <u></u><u></u></p><div><p class="MsoNormal">Hello everyone,<u></u><u></u></p></div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">I'm a new user of E-Prime and I'm currently creating a task during which I present different film excerpts to my participants and then, they answer questionnaires. <u></u><u></u></p>
</div><div><p class="MsoNormal">Everything's (nearly) ok but one of the difficulties I encounter is about the size of the movies. I don't know how to modify it to project the movies in full screen.<u></u><u></u></p>
</div><div><p class="MsoNormal">If you can help me to fix this (first) issue, I'll be very grateful.<u></u><u></u></p></div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">Thank you very much for your help !<u></u><u></u></p>
</div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">Soizic<u></u><u></u></p></div></div></div><p class="MsoNormal"><span style="color:#888888">-- <br>You received this message because you are subscribed to the Google Groups "E-Prime" group.<br>
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