{"id":45309,"date":"2021-08-08T16:55:51","date_gmt":"2021-08-08T07:55:51","guid":{"rendered":"https:\/\/www.charlezz.com\/?p=45309"},"modified":"2021-08-09T23:32:30","modified_gmt":"2021-08-09T14:32:30","slug":"%ec%95%88%eb%93%9c%eb%a1%9c%ec%9d%b4%eb%93%9c%eb%a1%9c-%eb%b0%b0%ec%9a%b0%eb%8a%94-opencv-%ec%a7%80%ec%97%ad-%ec%9d%b4%ec%a7%84%ed%99%94","status":"publish","type":"post","link":"https:\/\/charlezz.com\/?p=45309","title":{"rendered":"[\uc548\ub4dc\ub85c\uc774\ub4dc\ub85c \ubc30\uc6b0\ub294 OpenCV] \uc9c0\uc5ed \uc774\uc9c4\ud654"},"content":{"rendered":"<h1>\uc9c0\uc5ed \uc774\uc9c4\ud654<\/h1>\n<p>\uc9c0\ub09c <a href=\"https:\/\/www.charlezz.com\/?p=45285\">\ud3ec\uc2a4\ud305<\/a>\uc5d0\uc11c Otsu \ud568\uc218\ub97c \ud1b5\ud574 \uc784\uacc4\uac12\uc744 \uc790\ub3d9\uc73c\ub85c \uacb0\uc815\ud558\uace0 \uc774\ubbf8\uc9c0\ub97c \uc774\uc9c4\ud654\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574\uc11c \uc54c\uc544\ubcf4\uc558\ub2e4.<\/p>\n<p>\ub2e8\uc21c\ud788 Otsu\ub97c \uc801\uc6a9\ud558\ub294 \uac83\uc73c\ub85c <strong>\uac1d\uccb4<\/strong>\uc640 <strong>\ubc30\uacbd<\/strong>\uc744 \ubd84\ub9ac\ud560 \uc218 \uc788\uc73c\uba74 \uc88b\uaca0\uc9c0\ub9cc \ud604\uc2e4\uc740 \uadf8\ub807\uc9c0 \uc54a\ub2e4. <br \/>\n\ub2e4\uc74c\uc758 \uc300\uc54c\uc774 \ud3ec\ud568\ub41c \uc774\ubbf8\uc9c0\ub97c \uc0b4\ud3b4\ubcf4\uc790.<\/p>\n<p><a href=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-67.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-67-1022x1024.png\" alt=\"\" width=\"750\" height=\"751\" class=\"alignnone size-large wp-image-45311\" srcset=\"https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-67-1022x1024.png 1022w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-67-150x150.png 150w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-67-300x300.png 300w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-67-768x769.png 768w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-67.png 1202w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n<p>\uc300\uc54c \uc774\ubbf8\uc9c0\uc5d0 Otsu \ud568\uc218\ub97c \uc801\uc6a9\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc740 \uc774\uc9c4\ud654 \ub41c \uc774\ubbf8\uc9c0\ub97c \uc5bb\uc744 \uc218 \uc788\ub2e4.<\/p>\n<p><a href=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-68-1.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-68-1-1022x1024.png\" alt=\"\" width=\"750\" height=\"751\" class=\"alignnone size-large wp-image-45313\" srcset=\"https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-68-1-1022x1024.png 1022w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-68-1-150x150.png 150w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-68-1-300x300.png 300w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-68-1-768x769.png 768w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-68-1.png 1200w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>\ud070 \ubb38\uc81c\ub294 \uc5c6\uc5b4\ubcf4\uc778\ub2e4. \ub2e4\ub9cc \uc774\ubbf8\uc9c0 \ud558\ub2e8\ubd80\uc758 \ube68\uac04\uc0c9\uc73c\ub85c \ub9c8\ud0b9\ud574\ub193\uc740 \uc5ec\uc5ed\uc744 \uc0b4\ud3b4\ubcf4\uba74 \uc300\uc54c\uc774 \uc81c\ub300\ub85c \ub098\ud0c0\ub098\uc9c0 \uc54a\ub294\ub2e4.\u00a0<\/p>\n<p>\uc774\uc720\ub294 \uc0ac\uc9c4(\uc774\ubbf8\uc9c0)\ub97c \ucc0d\uc744 \ub54c<strong> \uade0\uc77c\ud558\uc9c0 \uc54a\uc740 \uc870\uba85<\/strong>\uc758 \uc601\ud5a5\uc744 \ubc1b\uae30 \ub54c\ubb38\uc5d0\ub2e4. \uc704\uc758 \uc300\uc54c \uc774\ubbf8\uc9c0\ub97c \uc608\ub85c \ub4e4\uc5b4 \uc124\uba85\ud558\uba74, \uc804\uccb4\uc801\uc778 \ubc1d\uae30\uc5d0 \ube44\ud574 \uc774\ubbf8\uc9c0 \ud558\ub2e8\ubd80\uac00 \uc870\uae08 \uc5b4\ub461\uae30 \ub54c\ubb38\uc5d0 \ub3d9\uc77c\ud55c \uc784\uacc4\uac12\uc73c\ub85c threshold\ub97c \uc801\uc6a9\ud588\uc744 \ub54c <strong>\uac1d\uccb4\uac00 \ubd84\ub9ac\ub418\uc9c0 \uc54a\ub294 \uac83<\/strong>\uc774\ub2e4<\/p>\n<p>\uc544\ub798\uc758 \ub0b4\uc6a9 \ucc98\ub7fc \uc9c0\uc5ed \uc774\uc9c4\ud654\ub97c \ud1b5\ud574 \uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud574\ubcf4\uc790.<\/p>\n<ul>\n<li>\uc774\ubbf8\uc9c0\ub0b4\uc758 \uc601\uc5ed\uc744 \uc784\uc758\ub85c \ubd84\ud560 \ud55c\ub2e4 (m*n)<\/li>\n<li>\ubd84\ud560\ub41c \uc601\uc5ed\uc5d0 \ub300\ud574 \uc774\uc9c4\ud654\ub97c \uc9c4\ud589\ud55c\ub2e4 -&gt; \uc9c0\uc5ed \uc774\uc9c4\ud654<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-1024x267.png\" alt=\"\" width=\"750\" height=\"196\" class=\"alignnone size-large wp-image-45314\" srcset=\"https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-1024x267.png 1024w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-300x78.png 300w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-768x200.png 768w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n<p>\uc9c0\uc5ed \uc774\uc9c4\ud654\ub97c \uc9c4\ud589\ud558\uba74 \uc601\uc5ed\uc744 \uc798\uac8c \ucabc\uac1c\uae30 \ub54c\ubb38\uc5d0 \uade0\uc77c\ud558\uc9c0 \uc54a\uc740 \ubc30\uacbd\uc758 \ubc1d\uae30\uc5d0 \ub300\ud574\uc11c \uc880 \ub354 \ub454\uac10\ud574\uc9c0\ub294 \ud6a8\uacfc\uac00 \uc788\ub2e4. \uadf8\ub807\uae30 \ub54c\ubb38\uc5d0 Otsu \uc54c\uace0\ub9ac\uc998\uc744 \ud1b5\ud55c \uc784\uacc4\uac12 \uacb0\uc815 \uc2dc \uc870\uae08 \ub354 \ub098\uc740 \uacb0\uacfc\ub97c \uc5bb\uc744 \uc218\ub3c4 \uc788\ub2e4.<\/p>\n<h2>\uc9c0\uc5ed \uc774\uc9c4\ud654 \uc608\uc81c\u00a0<\/h2>\n<p>\uc608\uc81c\ucf54\ub4dc\ub97c \uc0b4\ud3b4\ubcf4\uc790.<\/p>\n<pre class=\"lang: decode:true \">val graySrc = ...\r\n\r\n\/\/ \uc774\ubbf8\uc9c0\uc758 \uc0ac\uc774\uc988\r\nval width = graySrc.width() \r\nval height = graySrc.height()\r\n\r\n\r\n\/\/ \uc774\ubbf8\uc9c0\ub0b4\uc5d0\uc11c m*n\uc73c\ub85c \uc601\uc5ed\uc744 \ub098\ub208\ub2e4.\r\nfor (row in 0 until rows) {\r\n    for (column in 0 until columns) {\r\n        val submat = graySrc.submat(\r\n            height \/ rows * row,\r\n            height \/ rows * (row + 1),\r\n            width \/ columns * column,\r\n            width \/ columns * (column + 1)\r\n        )\r\n        \/\/ \ub098\ub220\uc9c4 \uc601\uc5ed\uc5d0 \ub300\ud574 \uac1c\ubcc4\uc801\uc73c\ub85c Otsu \uc774\uc9c4\ud654 \uc801\uc6a9\r\n        Imgproc.threshold(\r\n            submat,\r\n            submat,\r\n            0.0,\r\n            255.0,\r\n            Imgproc.THRESH_BINARY or Imgproc.THRESH_OTSU\r\n        )\r\n    }\r\n}\r\n \r\n\/\/ graySrc \ucd9c\ub825\r\n<\/pre>\n<p>\uc300\uc54c \uc774\ubbf8\uc9c0\ub97c 4*4 \uc601\uc5ed\uc73c\ub85c \ub098\ub204\uc5b4 Otsu\ub97c \uc9c4\ud589\ud574\ubcf4\uc558\ub2e4.\u00a0<\/p>\n<p><a href=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-70.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-70-369x1024.png\" alt=\"\" width=\"369\" height=\"1024\" class=\"alignnone size-large wp-image-45315\" srcset=\"https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-70-369x1024.png 369w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-70-108x300.png 108w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-70-768x2129.png 768w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-70.png 772w\" sizes=\"(max-width: 369px) 100vw, 369px\" \/><\/a><\/p>\n<p>Otsu\ub85c \uc774\ubbf8\uc9c0 \uc804\uccb4\ub97c \uc774\uc9c4\ud654 \ud588\uc744 \ub54c\ubcf4\ub2e4, \uc601\uc5ed\uc744 \ubd84\ud560\ud558\uc5ec \uc9c0\uc5ed \uc774\uc9c4\ud654\ub97c \ud588\uc744 \ub54c \ub354 \ub098\uc740 \uacb0\uacfc\ubb3c\uc744 \uc5bb\uc740 \uac83\uc744 \ud655\uc778\ud560 \uc218 \uc788\ub2e4.<\/p>\n<h2>\uc2e4\ud328 \uc0ac\ub840<\/h2>\n<p>\ud558\uc9c0\ub9cc \uc9c0\uc5ed \uc774\uc9c4\ud654\uac00 \ud56d\uc0c1 \uc88b\uc740 \uacb0\uacfc\ub97c \uac00\uc838\uc624\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4. \ub2e4\uc74c \ub098\uc624\ub294 \uc2e4\ud328\ud55c(?) \uc774\uc9c4\ud654 \uc774\ubbf8\uc9c0\ub4e4\uc744 \uc0b4\ud3b4\ubcf4\uc790.<\/p>\n<p><a href=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-77.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-77-150x150.png\" alt=\"\" width=\"240\" height=\"281\" class=\"alignnone wp-image-45318\" srcset=\"https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-77-256x300.png 256w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-77-768x899.png 768w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-77-874x1024.png 874w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-77.png 888w\" sizes=\"(max-width: 240px) 100vw, 240px\" \/><\/a><a href=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-75.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-75-150x150.png\" alt=\"\" width=\"240\" height=\"283\" class=\"alignnone wp-image-45319\" srcset=\"https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-75-255x300.png 255w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-75-768x905.png 768w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-75-869x1024.png 869w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-75.png 888w\" sizes=\"(max-width: 240px) 100vw, 240px\" \/><\/a><a href=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-76.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-76-150x150.png\" alt=\"\" width=\"240\" height=\"281\" class=\"alignnone wp-image-45320\" srcset=\"https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-76-256x300.png 256w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-76-768x900.png 768w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-76-874x1024.png 874w, https:\/\/charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-76.png 886w\" sizes=\"(max-width: 240px) 100vw, 240px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.charlezz.com\/wordpress\/wp-content\/uploads\/2021\/08\/www.charlezz.com-opencv-screenshot-73.png\"><\/a>\uc67c\ucabd\ubd80\ud130 \uc6d0\ubcf8 \uc774\ubbf8\uc9c0, Otsu \uc801\uc6a9 \ub41c \uc774\ubbf8\uc9c0, \uc9c0\uc5ed \uc774\uc9c4\ud654 \ub41c \uc774\ubbf8\uc9c0\ub2e4.<\/p>\n<p>Otsu\uac00 \uc801\uc6a9 \ub41c \uc774\ubbf8\uc9c0\ub294 \ubc30\uacbd\uc758 \ubc1d\uae30 \ucc28\uc774\ub54c\ubb38\uc5d0 \uc67c\ucabd \ud558\ub2e8\uc774 \uac1d\uccb4\uac00 \uc798 \uac80\ucd9c\ub418\uc9c0 \uc54a\uc558\uace0,\u00a0<br \/>\n4*4\ub85c \uc9c4\ud589\ub41c \uc9c0\uc5ed \uc774\uc9c4\ud654\ub294 \uc624\ub978\ucabd \uc0c1\ub2e8\uc758 \uc601\uc5ed\uc5d0 Otsu\ub97c \uc801\uc6a9\ud588\uc744 \ub54c \uc0c1\ub300\uc801\uc73c\ub85c \ubc1d\uc740 \ubc30\uacbd \ub54c\ubb38\uc5d0 \uc801\uc808\ud55c \uc784\uacc4\uac12\uc774 \uc124\uc815\ub418\uc9c0 \ubabb\ud55c \uac83\uc744 \ud655\uc778\ud560 \uc218 \uc788\ub2e4. <a href=\"https:\/\/www.charlezz.com\/?p=45322\">\uc801\uc751\ud615 \uc774\uc9c4\ud654<\/a>\ub97c \ud1b5\ud574 \uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud574\ubcf4\uc790.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc9c0\uc5ed \uc774\uc9c4\ud654 \uc9c0\ub09c \ud3ec\uc2a4\ud305\uc5d0\uc11c Otsu \ud568\uc218\ub97c \ud1b5\ud574 \uc784\uacc4\uac12\uc744 \uc790\ub3d9\uc73c\ub85c \uacb0\uc815\ud558\uace0 \uc774\ubbf8\uc9c0\ub97c \uc774\uc9c4\ud654\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574\uc11c \uc54c\uc544\ubcf4\uc558\ub2e4. \ub2e8\uc21c\ud788 Otsu\ub97c \uc801\uc6a9\ud558\ub294 \uac83\uc73c\ub85c \uac1d\uccb4\uc640 \ubc30\uacbd\uc744 \ubd84\ub9ac\ud560 \uc218 \uc788\uc73c\uba74 \uc88b\uaca0\uc9c0\ub9cc \ud604\uc2e4\uc740 \uadf8\ub807\uc9c0 \uc54a\ub2e4. \ub2e4\uc74c\uc758 \uc300\uc54c\uc774 \ud3ec\ud568\ub41c \uc774\ubbf8\uc9c0\ub97c \uc0b4\ud3b4\ubcf4\uc790. \uc300\uc54c \uc774\ubbf8\uc9c0\uc5d0 Otsu \ud568\uc218\ub97c \uc801\uc6a9\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc740 \uc774\uc9c4\ud654 \ub41c \uc774\ubbf8\uc9c0\ub97c \uc5bb\uc744 \uc218 \uc788\ub2e4. &nbsp; \ud070 \ubb38\uc81c\ub294 \uc5c6\uc5b4\ubcf4\uc778\ub2e4. [&hellip;]<\/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\/45309"}],"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=45309"}],"version-history":[{"count":4,"href":"https:\/\/charlezz.com\/index.php?rest_route=\/wp\/v2\/posts\/45309\/revisions"}],"predecessor-version":[{"id":45333,"href":"https:\/\/charlezz.com\/index.php?rest_route=\/wp\/v2\/posts\/45309\/revisions\/45333"}],"wp:attachment":[{"href":"https:\/\/charlezz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=45309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/charlezz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=45309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/charlezz.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=45309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}