<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">
<blockquote type="cite"></blockquote><div>Hi</div><div><br></div><div>Apologies for the slowness of my reply. Thanks both for the examples. I couldn't get pix_background working Ben but it seems to be not what I'm looking for on this occasion anyway. Mark, managed to see yours working, yep its pretty raw but it's a start which is what I needed. Many thanks.</div><div><br></div><div>a+</div><div>gar</div><br><blockquote type="cite">You don't actually load a base image into pix_background, you send a [reset( message to the [pix_background] object and it takes a snapshot of whatever's in front of the connected camera (or incoming video stream). Then it compares all incoming frames with that snapshot and outputs anything that's different between the two. The right inlet sets the threshold and takes an RGB value, so you will have to adjust this to reduce inevitable noise and artifacting. I have attached a very basic version of this patch I've described. I don't have a cam attached to this computer and don't have the time to test it, but it should work.<br><br>-Ben</blockquote><div><br></div><div><br></div><div><br></div><blockquote type="cite"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="http://megrimm.net/software/green-screen-pd-0.01/green-screen-pd.zip">http://megrimm.net/software/green-screen-pd-0.01/green-screen-pd.zip</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">this sort of works although its still pretty sloppy. didn't try with screen yet but with the help of iohannes and jacks color picker examples one should be able to key out any solid color from a video just by selecting it in a gem window.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">works on my side on osx.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">mark</div></blockquote><br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; "><a href="mailto:Garrett@asquare.org">Garrett@asquare.org</a> </font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; "><a href="http://www.asquare.org">http://www.asquare.org</a>/</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; "><a href="http://www.asquare.org/networkresearch/">http://www.asquare.org/networkresearch/</a></font></div></div></span></span> </div><br></body></html>