{"id":469,"date":"2014-01-23T12:20:37","date_gmt":"2014-01-23T17:20:37","guid":{"rendered":"http:\/\/homepages.uc.edu\/~yaozo\/wordpress\/?p=469"},"modified":"2014-01-23T12:20:37","modified_gmt":"2014-01-23T17:20:37","slug":"setting-up-python-and-opencv-for-windows-7","status":"publish","type":"post","link":"https:\/\/zhuoyao.net\/index.php\/2014\/01\/23\/setting-up-python-and-opencv-for-windows-7\/","title":{"rendered":"Setting up Python and OpenCV for Windows 7"},"content":{"rendered":"
\n
\n
\n
\n
by\u00a0BIZZARODAVID<\/a>\u00a0on\u00a0AUGUST 29, 2012\u00a0\u00b7\u00a0LEAVE A COMMENT<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\n
\n

I spent some time getting Python and OpenCV setup on Windows 7 tonight. I was looking for a solution that would get me started prototyping image processing algorithms quickly and this solution works quite nicely. Here\u2019s an easy way to set things up:<\/p>\n

1. It\u2019s easiest to download the scientific computation python bundle that is offered athttp:\/\/www.enthought.com\/<\/a>. Look for the link for \u201cEPD Free\u201d (Enthought Python Distribution.) EPD Free comes with Python 2.7, SciPy, NumPy, Matplotlib and a handful of other useful numerical tools, all in a\u00a0convenient Windows installer.<\/p>\n

2. Download OpenCV for Windows from\u00a0http:\/\/opencv.willowgarage.com\/<\/a>. Unpack into a directory somewhere and make special note of the \u2018opencv\/build\/python\/2.7\u2032 directory. \u00a0Additionally, check out the \u2018samples\/python2\u2032 directory for examples to run.<\/p>\n

3. You could use the built in python IDE, IDLE, but the Eclipse plugin PyDev is much more useful. You can find installation instructions over at\u00a0http:\/\/pydev.org\/<\/a>. In short, download the Eclipse IDE and install PyDev from the internal software update menu. When you are setting up a Python workspace just make sure to include the \u2018opencv\/build\/python\/2.7\u2032 directory so that you can make use of OpenCV within Eclipse.<\/p>\n

Test things out with the following code. It accesses a webcam and renders video until you press a key. It can be run from within Eclipse, just create a new Python module and run.<\/p>\n

\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
8<\/div>\n
9<\/div>\n
10<\/div>\n<\/td>\n
\n
\n
import<\/code> cv2<\/code><\/div>\n
<\/div>\n
cap <\/code>=<\/code> cv2.VideoCapture(<\/code>1<\/code>)<\/code><\/div>\n
cv2.namedWindow(<\/code>\"input\"<\/code>)<\/code><\/div>\n
key <\/code>=<\/code> -<\/code>1<\/code><\/div>\n
while<\/code>( key < <\/code>0<\/code> ):<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>success, img <\/code>=<\/code> cap.read()<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>cv2.imshow(<\/code>\"imshow\"<\/code>, img)<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>key <\/code>=<\/code> cv2.waitKey(<\/code>1<\/code>)<\/code><\/div>\n
cv2.destroyAllWindows()<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

OpenCV 2.4 \u00a0for Python documentation is available at\u00a0http:\/\/opencv.willowgarage.com\/<\/a>, however you\u2019ll probably find it equally as useful to look at the sample scripts in the \u2018samples\/python2\u2032 directory.<\/p>\n

<\/div>\n<\/div>\n
<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

by\u00a0BIZZARODAVID\u00a0on\u00a0AUGUST 29, 2012\u00a0\u00b7\u00a0LEAVE A COMMENT I spent some time getting Python and OpenCV setup on Windows 7 tonight. I was looking for a solution that… <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-469","post","type-post","status-publish","format-standard","hentry","category-computer-vision"],"_links":{"self":[{"href":"https:\/\/zhuoyao.net\/index.php\/wp-json\/wp\/v2\/posts\/469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zhuoyao.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zhuoyao.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zhuoyao.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zhuoyao.net\/index.php\/wp-json\/wp\/v2\/comments?post=469"}],"version-history":[{"count":0,"href":"https:\/\/zhuoyao.net\/index.php\/wp-json\/wp\/v2\/posts\/469\/revisions"}],"wp:attachment":[{"href":"https:\/\/zhuoyao.net\/index.php\/wp-json\/wp\/v2\/media?parent=469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zhuoyao.net\/index.php\/wp-json\/wp\/v2\/categories?post=469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zhuoyao.net\/index.php\/wp-json\/wp\/v2\/tags?post=469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}