{"id":2238,"date":"2013-08-21T12:00:37","date_gmt":"2013-08-21T02:00:37","guid":{"rendered":"http:\/\/legoeng.local\/?p=2238"},"modified":"2020-05-20T14:48:51","modified_gmt":"2020-05-20T04:48:51","slug":"image-processing-in-labview","status":"publish","type":"post","link":"http:\/\/legoeng.local\/image-processing-in-labview\/","title":{"rendered":"Image processing in LabVIEW"},"content":{"rendered":"<figure style=\"width: 248px\" class=\"wp-caption alignright\"><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/b1.png\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/b1.png\" alt=\"b\" width=\"248\" height=\"140\" \/><\/a><figcaption class=\"wp-caption-text\">Behaviors &#8211; getting started<\/figcaption><\/figure>\n<p>The Image Processing VIs are a rudimentary set of image capture and analysis VIs that allow the user to grab images from a USB camera (using Chris Salzmann&#8217;s QuickTime VIs) and analyze them.<\/p>\n<p>These VIs can be used to determine color information, threshold, binary morphology, blob detection. They can read and save standard image types, and can also read and save Quicktime movies.<\/p>\n<p>They are not as capable as the LabVIEW Image Processing Toolkit but they run on Mac OS X and Windows platforms.<\/p>\n<p>Because of the processing required, these VIs will not work when targetting to the NXT. Instead they require the program to be run on the computer (i.e. Main Application Instance).<\/p>\n<h2>System requirements<\/h2>\n<ul>\n<li><a title=\"LabVIEW\" href=\"http:\/\/legoeng.local\/program\/labview\/\">LabVIEW<\/a><\/li>\n<li><a href=\"http:\/\/www.apple.com\/quicktime\/\" rel=\"nofollow\">QuickTime<\/a><\/li>\n<li>Webcam (built-in or USB)<\/li>\n<li>Windows 98 or better<\/li>\n<li>Mac OS X 10.6 or better<\/li>\n<li>2GB RAM<\/li>\n<\/ul>\n<h2>Installation<\/h2>\n<p>NOTE: If you have installed <a title=\"ROBOLAB for LabVIEW\" href=\"http:\/\/legoeng.local\/robolab-for-labview\/\">ROBOLAB for LabVIEW<\/a>, you will have an early version installed and in your Add-ons palette.<\/p>\n<p>To install the most recent version of the Image Processing vis, follow the following steps:<\/p>\n<ol>\n<li>Download the library <a href=\"https:\/\/www.dropbox.com\/s\/d82p78qpq0fxrca\/ImageProcessing.zip?dl=0\">here<\/a>.<\/li>\n<li>Unzip the library.<\/li>\n<li>Move the library into your &#8220;LabVIEW &gt; vi.lib &gt; user.lib&#8221; folder (under the Applications folder in Mac OS X and the Program Files in Windows).<\/li>\n<li>Open LabVIEW.<\/li>\n<li>Make sure to save all changes when it recompiles the library for your operating system.<\/li>\n<\/ol>\n<figure id=\"attachment_2253\" aria-describedby=\"caption-attachment-2253\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/a11.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2253 \" src=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/a11-300x277.png\" alt=\"a1\" width=\"300\" height=\"277\" srcset=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/a11-300x277.png 300w, http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/a11.png 485w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-2253\" class=\"wp-caption-text\">The palette<\/figcaption><\/figure>\n<figure id=\"attachment_2255\" aria-describedby=\"caption-attachment-2255\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/c.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2255 \" src=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/c-300x181.png\" alt=\"c\" width=\"300\" height=\"181\" srcset=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/c-300x181.png 300w, http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/c.png 333w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-2255\" class=\"wp-caption-text\">A simple TV<\/figcaption><\/figure>\n<figure id=\"attachment_2256\" aria-describedby=\"caption-attachment-2256\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/d.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2256 \" src=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/d-300x190.png\" alt=\"d\" width=\"300\" height=\"190\" srcset=\"http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/d-300x190.png 300w, http:\/\/legoeng.local\/wp-content\/uploads\/2013\/06\/d.png 322w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-2256\" class=\"wp-caption-text\">Find the red pen cap<em> <br \/><\/em><\/figcaption><\/figure>\n<p style=\"text-align: left;\">NOTE: Some installations end up with a broken arrow and are not able to run a number of the VIs. This may be because the lowest level QT vi has lost the connection to the lsb (driver) file. To fix this&#8230;<\/p>\n<ol>\n<li>Go down to the lowest level &#8211; and one of the VIs will say QT_Call_Win or QT_Call_Mac &#8211; that diagram has a code interface node &#8211; you need to reload the file<\/li>\n<li>Right-click on the node (top) and select &#8220;Reload Code Interface From&#8230;&#8221; and then select the right library (it is in the Image Processing : QTLIB_2595_LV86 : CINWin.lsb or QTLV_x86.lsb)<\/li>\n<li>Save all changes.<\/li>\n<\/ol>\n<p><em>Last updated: May 20, 2020<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Image Processing VIs are a rudimentary set of image capture and analysis VIs that allow the user to grab images from a USB camera (using Chris Salzmann&#8217;s QuickTime VIs) and analyze them. These VIs can be used to determine color information, threshold, binary morphology, blob detection. They can read and save standard image types, [&hellip;]<\/p>\n","protected":false},"author":29,"featured_media":2256,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[580,159],"tags":[213,118],"_links":{"self":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/posts\/2238"}],"collection":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/users\/29"}],"replies":[{"embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/comments?post=2238"}],"version-history":[{"count":0,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/posts\/2238\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/media\/2256"}],"wp:attachment":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/media?parent=2238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/categories?post=2238"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/tags?post=2238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}