{"id":6747,"date":"2019-04-23T15:00:31","date_gmt":"2019-04-23T06:00:31","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=6747"},"modified":"2020-05-28T12:20:54","modified_gmt":"2020-05-28T03:20:54","slug":"python%ea%b3%bc-opencv-28-grabcut-%ec%95%8c%ea%b3%a0%eb%a6%ac%ec%a6%98%ec%9d%84-%ec%9d%b4%ec%9a%a9%ed%95%9c-%ec%a0%84%ea%b2%bdforeground-%ec%b6%94%ec%b6%9c","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=6747","title":{"rendered":"Python\uacfc OpenCV \u2013 29 : GrabCut \uc54c\uace0\ub9ac\uc998\uc744 \uc774\uc6a9\ud55c \uc804\uacbd(Foreground) \ucd94\ucd9c"},"content":{"rendered":"<p>\uc774 \uae00\uc758 \uc6d0\ubb38\uc740 https:\/\/github.com\/abidrahmank\/OpenCV2-Python-Tutorials\/blob\/master\/source\/py_tutorials\/py_imgproc\/py_grabcut\/py_grabcut.rst \uc785\ub2c8\ub2e4. <\/p>\n<p>GrabCut \uc54c\uace0\ub9ac\uc998\uc740 \uc774\ubbf8\uc9c0\uc5d0\uc11c \ubc30\uacbd\uc774 \uc544\ub2cc \uc804\uacbd\uc5d0 \ud574\ub2f9\ud558\ub294 \uc774\ubbf8\uc9c0\ub97c \ucd94\ucd9c\ud574 \ub0b4\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. \uc774\ubbf8\uc9c0\uc5d0\uc11c \ud55c\ubc88\uc5d0 \uc804\uacbd\uc744 \ucd94\ucd9c\ud574 \ub0b4\ub294 \uac83\uc774 \uc544\ub2cc \uc0ac\uc6a9\uc790\uc640\uc758 \uc0c1\ud638 \uc791\uc6a9\uc744 \ud1b5\ud574 \ub2e8\uacc4\uc801\uc73c\ub85c \uc804\uacbd\uc744 \ucd94\ucd9c\ud569\ub2c8\ub2e4. \uc774 \uc0c1\ud638\uc791\uc6a9\uc740 \ud06c\uac8c 2\uac00\uc9c0 \ub2e8\uacc4\ub85c \uc9c4\ud589\ub418\ub294\ub370, \uccab\ubc88\uc9f8\ub294 \uc774\ubbf8\uc9c0\uc5d0\uc11c \uc804\uacbd\uc774 \ud3ec\ud568\ub418\ub294 \uc601\uc5ed\uc744 \uc0ac\uac01\ud615\uc73c\ub85c \ub300\ub7b5\uc801\uc73c\ub85c \uc9c0\uc815\ud569\ub2c8\ub2e4. \ub2e8, \uc774\ub54c \uc9c0\uc815\ud55c \uc0ac\uac01\ud615 \uc601\uc5ed \uc548\uc5d0\ub294 \uc804\uacbd\uc774 \ubaa8\ub450 \ud3ec\ud568\ub418\uc5b4 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \ub450\ubc88\uc9f8\ub294 \uccab\ubc88\uc9f8\uc5d0\uc11c \uc5bb\uc5b4\uc9c4 \uc804\uacbd \uc774\ubbf8\uc9c0\uc758 \ub0b4\uc6a9\uc911 \ud3ec\ud568\ub418\uc5b4\uc9c4 \ubc30\uacbd \ubd80\ubd84\uc740 \uc5b4\ub514\uc778\uc9c0, \ub204\ub77d\ub41c \uc804\uacbd \ubd80\ubd84\uc740 \uc5b4\ub514\uc778\uc9c0\ub97c \ub9c8\ud0b9\ud558\uba74 \uc774\ub97c \uc774\uc6a9\ud574 \ub2e4\uc2dc \uc804\uacbd \uc774\ubbf8\uc9c0\uac00 \uc0c8\ub86d\uac8c \ucd94\ucd9c\ub429\ub2c8\ub2e4.<\/p>\n<p>\uc704\uc758 GrabCut \uc54c\uace0\ub9ac\uc998\uc5d0 \ub300\ud55c OpenCV\uc758 \uad6c\ud604\uc740 cv2.grabCut \uc785\ub2c8\ub2e4. \uc608\uc81c\ub97c \ud1b5\ud574 \uc774 \ud568\uc218\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uccab\ubc88\uc9f8 \uc608\uc81c\ub294 \uc55e\uc11c \uc5b8\uae09\ud55c GrabCut\uc758 \uc0c1\ud638\uc791\uc6a9 \uc911 \uc804\uacbd\uc774 \ud3ec\ud568\ub41c \uc0ac\uac01 \uc601\uc5ed\uc744 \uc9c0\uc815\ud558\ub294 \uac83\ub9cc\uc744 \uc774\uc6a9\ud574 \uc804\uacbd\uc744 \ucd94\ucd9c\ud558\ub294 \uacbd\uc6b0\uc785\ub2c8\ub2e4.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">\r\nimport numpy as np\r\nimport cv2\r\nfrom matplotlib import pyplot as plt\r\n\r\nimg = cv2.imread('.\/data\/messi5.jpg')\r\nmask = np.zeros(img.shape[:2],np.uint8)\r\n\r\nbgdModel = np.zeros((1,65),np.float64)\r\nfgdModel = np.zeros((1,65),np.float64)\r\n\r\nrect = (50,50,450,290)\r\ncv2.grabCut(img,mask,rect,bgdModel,fgdModel,5,cv2.GC_INIT_WITH_RECT)\r\n\r\nmask2 = np.where((mask==2)|(mask==0),0,1).astype('uint8')\r\nimg = img*mask2[:,:,np.newaxis]\r\n\r\nplt.imshow(img),plt.colorbar(),plt.show()\r\n<\/pre>\n<p>\uacb0\uacfc\ub294 \uc544\ub798\uc640 \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.gisdeveloper.co.kr\/wp-content\/uploads\/2019\/04\/grabcut01.png\" alt=\"\" width=\"1600\" height=\"909\" class=\"aligncenter size-full wp-image-6748\" \/><\/p>\n<p>\ucf54\ub4dc \uc911 \uc804\uacbd\uc774 \ud3ec\ud568\ub41c \uc0ac\uac01\uc601\uc5ed\uc740 11\ubc88 \ucf54\ub4dc\uc5d0\uc11c rect \ubcc0\uc218\uc5d0 \uc9c0\uc815\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 rect \ubcc0\uc218\ub97c \uc774\uc6a9\ud574 12\ubc88 \ucf54\ub4dc\uc5d0\uc11c \uc804\uacbd\uc744 \ucd94\ucd9c\ud558\ub294 cv2.grabCut \ud568\uc218\uac00 \uc2e4\ud589\ub429\ub2c8\ub2e4. \uc774 \ud568\uc218\uc758 \uc778\uc790\ub97c \uc0b4\ud3b4\ubcf4\uba74 \uccab\ubc88\uc9f8\ub294 \uc785\ub825 \uc774\ubbf8\uc9c0, \ub450\ubc88\uc9f8\ub294 6\ubc88 \ucf54\ub4dc\uc5d0\uc11c \uc0dd\uc131\ud55c \ubaa8\ub4e0 \uc694\uc18c\uac00 0\uc778 \ub9c8\uc2a4\ud06c \uc774\ubbf8\uc9c0, \uc138\ubc88\uc9f8\ub294 \uc0ac\uac01\ud615\uc5ed, \ub124\ubc88\uc9f8\uc640 \ub2e4\uc12f\ubc88\uc9f8\ub294 \uc774 \uc54c\uace0\ub9ac\uc998\uc758 \uc218\ud589 \uacfc\uc815\uc911 \ud65c\uc6a9\ud560 \uba54\ubaa8\ub9ac, \uc5ec\uc12f\ubc88\uc9f8\ub294 \ud574\ub2f9 \uc54c\uace0\ub9ac\uc998\uc758 \ubc18\ubcf5 \uc218\ud589 \ud69f\uc218, \uc77c\uacf1\ubc88\uc7ac\ub294 \uc0ac\uac01\ud615 \uc601\uc5ed \uc9c0\uc815\uc744 \ud1b5\ud55c GrabCut\uc77c \uacbd\uc6b0 cv2.GC_INIT_WITH_RECT\ub97c \uc9c0\uc815\ud569\ub2c8\ub2e4. \uc774 \uc778\uc790 \uc911 6\ubc88\uc9f8\uc778 mask\uc5d0\ub294 \uc804\uacbd\uc5d0 \ud574\ub2f9\ud558\ub294 \ud654\uc18c \uc704\uce58\uc5d0 \uac12\uc774 \uc124\uc815\ub418\ub294\ub370, 0 \ub610\ub294 2 \uac12\uc740 \ubc30\uacbd\uc774\uace0 1 \ub610\ub294 3\uc778 \uc804\uacbd\uc774\ub77c\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4. \uc774\ub97c \uc774\uc6a9\ud574 \uc6d0\ubcf8 \uc774\ubbf8\uc9c0\uc5d0 \ub9c8\uc2a4\ud0b9 \ucc98\ub9ac\ub97c \ud574\uc11c \uc804\uacbd\ub9cc\uc744 \ud45c\uc2dc\ud558\ub294 \uac83\uc774 14-17\ubc88 \ucf54\ub4dc\uc785\ub2c8\ub2e4.<\/p>\n<p>\ub2e4\uc74c\uc740 \uc0ac\uac01\ud615 \uc601\uc5ed\uc758 \uc9c0\uc815 \uc774\ud6c4\uc5d0 \ucd94\ucd9c\ub41c \uc804\uacbd\uc5d0 \ub300\ud574 \ub2e4\uc2dc \ub204\ub77d\ub41c \uc804\uacbd\uacfc \ud3ec\ud568\ub41c \ubc30\uacbd \ubd80\ubd84\uc744 \ub9c8\ud0b9\ud558\uc5ec \ubcf4\ub2e4 \uc644\uc804\ud55c \uc804\uacbd \uc774\ubbf8\uc9c0\ub97c \ucd94\ucd9c\ud558\ub294 \uc804\uccb4\uc801\uc778 GrabCut \uc54c\uace0\ub9ac\uc998\uc5d0 \ub300\ud55c \uc608\uc81c\uc785\ub2c8\ub2e4.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">\r\nimport numpy as np\r\nimport cv2\r\nfrom matplotlib import pyplot as plt\r\n\r\nimg = cv2.imread('.\/data\/messi5.jpg')\r\nmask = np.zeros(img.shape[:2],np.uint8)\r\n\r\nbgdModel = np.zeros((1,65),np.float64)\r\nfgdModel = np.zeros((1,65),np.float64)\r\n\r\n# Step 1\r\nrect = (50,50,450,290)\r\ncv2.grabCut(img,mask,rect,bgdModel,fgdModel,1,cv2.GC_INIT_WITH_RECT)\r\n\r\n# Step 2\r\nnewmask = cv2.imread('.\/data\/newmask2.png',0)\r\nmask[newmask == 0] = 0\r\nmask[newmask == 255] = 1\r\ncv2.grabCut(img,mask,None,bgdModel,fgdModel,1,cv2.GC_INIT_WITH_MASK)\r\n\r\nmask2 = np.where((mask==2)|(mask==0),0,1).astype('uint8')\r\nimg = img*mask2[:,:,np.newaxis]\r\nplt.imshow(img),plt.colorbar(),plt.show()\r\n<\/pre>\n<p>\uacb0\uacfc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.gisdeveloper.co.kr\/wp-content\/uploads\/2019\/04\/grabcut02.png\" alt=\"\" width=\"1521\" height=\"851\" class=\"aligncenter size-full wp-image-6751\" \/><\/p>\n<p>\ucf54\ub4dc \uc911 Step1\uc73c\ub85c \ucc98\ub9ac\ub41c \ubd80\ubd84\uc740 \uc55e\uc11c \uc124\uba85\ud55c \uc0ac\uac01\uc601\uc5ed \uc9c0\uc815\uc744 \ud1b5\ud55c \uc804\uacbd\uc758 \ucd94\ucd9c\uc774\uace0 Step2\uac00 \ub9c8\ud0b9\uc744 \ud1b5\ud55c \uc804\uacbd \uc774\ubbf8\uc9c0 \ucd94\ucd9c\uc785\ub2c8\ub2e4. \ub9c8\ud0b9 \ubc29\uc2dd\uc740 newmask2.png\uc5d0 \ub9c8\ud0b9 \uc815\ubcf4\ub97c \ub098\ud0c0\ub0b4\uace0 \uc788\ub294\ub370 \uc774 \uc774\ubbf8\uc9c0\ub294 \uc544\ub798\uc640 \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.gisdeveloper.co.kr\/wp-content\/uploads\/2019\/04\/newmask2.png\" alt=\"\" width=\"548\" height=\"342\" class=\"aligncenter size-full wp-image-6753\" \/><\/p>\n<p>\uc989, \ud558\uc580\uc0c9 \ud53d\uc140\uac12(255)\uc740 \uc804\uacbd\uc744, \uac80\uc815\uc0c9 \ud53d\uc140\uac12(0)\uc740 \ubc30\uacbd\uc784\uc744 \ub098\ud0c0\ub0b4\ub294 \ub9c8\ud0b9 \uc815\ubcf4\ub97c \ud3ec\ud568\ud558\uace0 \uc788\ub294 \uc774\ubbf8\uc9c0\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc774 \uae00\uc758 \uc6d0\ubb38\uc740 https:\/\/github.com\/abidrahmank\/OpenCV2-Python-Tutorials\/blob\/master\/source\/py_tutorials\/py_imgproc\/py_grabcut\/py_grabcut.rst \uc785\ub2c8\ub2e4. GrabCut \uc54c\uace0\ub9ac\uc998\uc740 \uc774\ubbf8\uc9c0\uc5d0\uc11c \ubc30\uacbd\uc774 \uc544\ub2cc \uc804\uacbd\uc5d0 \ud574\ub2f9\ud558\ub294 \uc774\ubbf8\uc9c0\ub97c \ucd94\ucd9c\ud574 \ub0b4\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. \uc774\ubbf8\uc9c0\uc5d0\uc11c \ud55c\ubc88\uc5d0 \uc804\uacbd\uc744 \ucd94\ucd9c\ud574 \ub0b4\ub294 \uac83\uc774 \uc544\ub2cc \uc0ac\uc6a9\uc790\uc640\uc758 \uc0c1\ud638 \uc791\uc6a9\uc744 \ud1b5\ud574 \ub2e8\uacc4\uc801\uc73c\ub85c \uc804\uacbd\uc744 \ucd94\ucd9c\ud569\ub2c8\ub2e4. \uc774 \uc0c1\ud638\uc791\uc6a9\uc740 \ud06c\uac8c 2\uac00\uc9c0 \ub2e8\uacc4\ub85c \uc9c4\ud589\ub418\ub294\ub370, \uccab\ubc88\uc9f8\ub294 \uc774\ubbf8\uc9c0\uc5d0\uc11c \uc804\uacbd\uc774 \ud3ec\ud568\ub418\ub294 \uc601\uc5ed\uc744 \uc0ac\uac01\ud615\uc73c\ub85c \ub300\ub7b5\uc801\uc73c\ub85c \uc9c0\uc815\ud569\ub2c8\ub2e4. \ub2e8, \uc774\ub54c \uc9c0\uc815\ud55c \uc0ac\uac01\ud615 \uc601\uc5ed \uc548\uc5d0\ub294 \uc804\uacbd\uc774 \ubaa8\ub450 \ud3ec\ud568\ub418\uc5b4 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4. &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/www.gisdeveloper.co.kr\/?p=6747\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;Python\uacfc OpenCV \u2013 29 : GrabCut \uc54c\uace0\ub9ac\uc998\uc744 \uc774\uc6a9\ud55c \uc804\uacbd(Foreground) \ucd94\ucd9c&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[130,131],"tags":[],"class_list":["post-6747","post","type-post","status-publish","format-standard","hentry","category-opencv","category-python"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/6747","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6747"}],"version-history":[{"count":8,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/6747\/revisions"}],"predecessor-version":[{"id":9444,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/6747\/revisions\/9444"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6747"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}