{"id":44808,"date":"2021-03-08T18:47:34","date_gmt":"2021-03-08T09:47:34","guid":{"rendered":"https:\/\/www.charlezz.com\/?p=44808"},"modified":"2021-03-24T09:10:46","modified_gmt":"2021-03-24T00:10:46","slug":"opencv-videocapture-%ed%81%b4%eb%9e%98%ec%8a%a4-%ec%82%ac%ec%9a%a9%ed%95%98%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/charlezz.com\/?p=44808","title":{"rendered":"[\uc548\ub4dc\ub85c\uc774\ub4dc\ub85c \ubc30\uc6b0\ub294 OpenCV] VideoCapture \ud074\ub798\uc2a4 \uc0ac\uc6a9\ud558\uae30"},"content":{"rendered":"

VideoCapture \uc0ac\uc6a9\ud558\uae30<\/h1>\n

OpenCV\uc5d0\uc11c\ub294 \uce74\uba54\ub77c \uc601\uc0c1<\/strong> \ubc0f \ub3d9\uc601\uc0c1 \ud30c\uc77c<\/strong>\uc5d0\uc11c \ud504\ub808\uc784\uc744 \uac00\uc838\uc624\ub294 \uc791\uc5c5\uc744 VideoCapture \ud558\ub098\ub85c \ucc98\ub9ac\ud55c\ub2e4.<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

\uce74\uba54\ub77c \ub610\ub294 \ube44\ub514\uc624 \uc5f4\uae30<\/h2>\n
\/\/ \uce74\uba54\ub77c \ubd88\ub7ec\uc624\uae30, \uc548\ub4dc\ub85c\uc774\ub4dc\ub294 \uc801\uc6a9\ub418\uc9c0 \uc54a\uc74c.\r\nval videoCapture = VideoCapture(index, apiPreferences)\r\n\/\/ \ub610\ub294 \r\nval videoCapture = VideoCapture()\r\ncamera.open(index, apiPreferences)\r\n\r\n\/\/ \ube44\ub514\uc624 \ubd88\ub7ec\uc624\uae30\r\nval videoCapture = VideoCapture(filePath, apiPreferences)\r\n\/\/ \ub610\ub294\r\nval videoCapture = VideoCapture()\r\nvideo.open(filePath, apiPreferences)<\/pre>\n
index : \uce74\uba54\ub77c\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0 \uc0ac\uc6a9\ud560 \uce74\uba54\ub77c index (or id), \uc77c\ubc18\uc801\uc73c\ub85c \uc2dc\uc2a4\ud15c \uae30\ubcf8 \uce74\uba54\ub77c\ub97c \uc0ac\uc6a9\ud558\ub824\uba74 0\uc744 \ub300\uc785
\nfilePath : \ube44\ub514\uc624\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0 \uc0ac\uc6a9\ud560 \ube44\ub514\uc624 \ud30c\uc77c \uacbd\ub85c.
\napiPreference: \uc120\ud638\ud558\ub294 \uce74\uba54\ub77c or \ube44\ub514\uc624 \ucc98\ub9ac \ubc29\ubc95<\/p>\n
\uc8fc\uc694 VideoCaptureAPIs \uc5f4\uac70\ud615 \uc0c1\uc218<\/strong><\/p>\n
\"\"<\/a><\/p>\n
\ube44\ub514\uc624 \ucea1\uccd0 \uc900\ube44 \ud655\uc778<\/h2>\n
VideoCapture.isOpened():Boolean<\/pre>\n
\ud504\ub808\uc784\uc744 \ubc1b\uc544\uc62c \uc900\ube44\uac00 \ub418\uba74 true\ub97c \ubc18\ud658\ud55c\ub2e4.<\/p>\n
\ud504\ub808\uc784 \ubc1b\uc544\uc624\uae30<\/h2>\n
VideoCapture.read(mat):Boolean<\/pre>\n
mat: \ud504\ub808\uc784\uc744 \uac00\uc838\uc624\ub294\ub370 \uc131\uacf5\ud560 \ub54c \uc800\uc7a5\ud560 \ub370\uc774\ud130 \ud0c0\uc785
\n\ud504\ub808\uc784\uc744 \uac00\uc838\uc624\ub294\ub370 \uc131\uacf5\ud558\uba74 true, \uc2e4\ud328\ud558\uba74 false\ub97c \ubc18\ud658\ud55c\ub2e4.<\/p>\n
\uce74\uba54\ub77c \ub610\ub294 \ube44\ub514\uc624 \uc18d\uc131 \uac12 \ucc38\uc870 \ubc0f \uc124\uc815<\/h2>\n
\uc18d\uc131 \ucc38\uc870\ud558\uae30<\/h3>\n
VideoCapture.get(propertyId):Double<\/pre>\n
propertyId: \uc18d\uc131 \uc0c1\uc218<\/p>\n
\ud574\ub2f9 propertyId\uc5d0 \uc0c1\uc751 \ud558\ub294 \uac12\uc744 \ubc18\ud658\ud55c\ub2e4. \uc2e4\ud328\uc2dc 0\uc744 \ubc18\ud658<\/p>\n
\"\"<\/a><\/p>\n
\ub354 \ub9ce\uc740 propertyId\ub97c \ucc38\uc870\ud558\ub824\uba74 \uacf5\uc2dd \ubb38\uc11c<\/a>\ub97c \ucc38\uc870<\/p>\n
\uc18d\uc131 \uc124\uc815\ud558\uae30<\/h3>\n
VideoCapture.set(propertyId, value):Boolean<\/pre>\n
propertyId: \uc18d\uc131 \uc0c1\uc218
\nvalue: \uc124\uc815\ud558\uace0\uc790 \ud558\ub294 \uac12<\/p>\n
\ud574\ub2f9 \uc18d\uc131\uc744 \uc124\uc815\ud558\ub294\ub370 \uc131\uacf5\ud558\uba74 true\ub97c \ubc18\ud658\ud55c\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
VideoCapture \uc0ac\uc6a9\ud558\uae30 OpenCV\uc5d0\uc11c\ub294 \uce74\uba54\ub77c \uc601\uc0c1 \ubc0f \ub3d9\uc601\uc0c1 \ud30c\uc77c\uc5d0\uc11c \ud504\ub808\uc784\uc744 \uac00\uc838\uc624\ub294 \uc791\uc5c5\uc744 VideoCapture \ud558\ub098\ub85c \ucc98\ub9ac\ud55c\ub2e4.   \uce74\uba54\ub77c \ub610\ub294 \ube44\ub514\uc624 \uc5f4\uae30 \/\/ \uce74\uba54\ub77c \ubd88\ub7ec\uc624\uae30, \uc548\ub4dc\ub85c\uc774\ub4dc\ub294 \uc801\uc6a9\ub418\uc9c0 \uc54a\uc74c. val videoCapture = VideoCapture(index, apiPreferences) \/\/ \ub610\ub294 val videoCapture = VideoCapture() camera.open(index, apiPreferences) \/\/ \ube44\ub514\uc624 \ubd88\ub7ec\uc624\uae30 val videoCapture = VideoCapture(filePath, apiPreferences) \/\/ \ub610\ub294 val videoCapture […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[27],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/charlezz.com\/index.php?rest_route=\/wp\/v2\/posts\/44808"}],"collection":[{"href":"https:\/\/charlezz.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/charlezz.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/charlezz.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/charlezz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=44808"}],"version-history":[{"count":3,"href":"https:\/\/charlezz.com\/index.php?rest_route=\/wp\/v2\/posts\/44808\/revisions"}],"predecessor-version":[{"id":44855,"href":"https:\/\/charlezz.com\/index.php?rest_route=\/wp\/v2\/posts\/44808\/revisions\/44855"}],"wp:attachment":[{"href":"https:\/\/charlezz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=44808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/charlezz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=44808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/charlezz.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=44808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}