{"id":38814,"date":"2024-11-02T00:57:16","date_gmt":"2024-11-02T00:57:16","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=38814"},"modified":"2024-11-26T06:43:16","modified_gmt":"2024-11-26T06:43:16","slug":"opencv-%ea%b0%95%ec%a2%8c-warp-affine%ec%9d%84-%ed%99%9c%ec%9a%a9%ed%95%9c-%ec%8b%a4%ec%9a%a9%ec%a0%81-%ec%98%88%ec%a0%9c","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/38814\/","title":{"rendered":"OpenCV \uac15\uc88c, Warp Affine\uc744 \ud65c\uc6a9\ud55c \uc2e4\uc6a9\uc801 \uc608\uc81c"},"content":{"rendered":"<h2>OpenCV \uac15\uc88c: Warp Affine\uc744 \ud65c\uc6a9\ud55c \uc2e4\uc6a9\uc801 \uc608\uc81c<\/h2>\n<p>OpenCV\ub294 \ucef4\ud4e8\ud130 \ube44\uc804 \ubc0f \uc774\ubbf8\uc9c0 \ucc98\ub9ac \ubd84\uc57c\uc5d0\uc11c \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ub77c\uc774\ube0c\ub7ec\ub9ac \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc774 \uac15\uc88c\uc5d0\uc11c\ub294 OpenCV\uc758 \ubcc0\ud658 \uae30\ubc95 \uc911 \ud558\ub098\uc778 &#8216;Warp Affine&#8217;\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uace0, \uc2e4\uc81c \uc0ac\ub840\ub97c \ud1b5\ud574 \uc5b4\ub5bb\uac8c \ud65c\uc6a9\ud560 \uc218 \uc788\ub294\uc9c0 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>1. Warp Affine\ub780 \ubb34\uc5c7\uc778\uac00?<\/h3>\n<p>\n    Warp Affine\uc740 2D \uc774\ubbf8\uc9c0\ub97c \uc0ac\uc120\uc73c\ub85c \uc65c\uace1\ud558\ub294 \uae30\uc220\ub85c, \ubcc0\ud658 \ud589\ub82c\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc774\ubbf8\uc9c0\ub97c \ud68c\uc804\ud558\uace0, \uc774\ub3d9\ud558\uba70, \ud06c\uae30\ub97c \uc870\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubcc0\ud658\uc740 2\uac1c\uc758 \ucd95\uc744 \ud1b5\ud55c \uc120\ud615 \ubcc0\ud658\uc744 \uae30\ubc18\uc73c\ub85c \ud558\uba70, 3\uac1c\uc758 \uc810\uc774 \uc788\ub2e4\uba74 \uc774\ub4e4\uc744 \ud1b5\ud574 \ubcc0\ud658 \ud589\ub82c\uc744 \uad6c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. Warp Affine\uc740 \uc774\ubbf8\uc9c0 \ucc98\ub9ac \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \ub2e4\uc591\ud55c \ubcc0\ud615\uc744 \uc218\ud589\ud558\ub294 \ub370 \ub9e4\uc6b0 \uc720\uc6a9\ud569\ub2c8\ub2e4.\n<\/p>\n<h3>2. Warp Affine\uc758 \uae30\ucd08<\/h3>\n<p>\n    Warp Affine \ubcc0\ud658\uc744 \uc218\ud589\ud558\uae30 \uc704\ud574\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc21c\uc11c\uac00 \ud544\uc694\ud569\ub2c8\ub2e4:\n<\/p>\n<ol>\n<li>\ubcc0\ud658\ud560 \ud3ec\uc778\ud2b8\uc758 \uc88c\ud45c\ub97c \uc815\uc758\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc751\uc6a9\ud560 \ubcc0\ud658 \ud589\ub82c\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/li>\n<li>OpenCV\uc758 <code>cv2.warpAffine<\/code> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubcc0\ud658\uc744 \uc218\ud589\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<h3>3. \ubcc0\ud658 \ud589\ub82c \uacc4\uc0b0\ud558\uae30<\/h3>\n<p>\n    \ubcc0\ud658 \ud589\ub82c\uc744 \uacc4\uc0b0\ud558\uae30 \uc704\ud574\uc11c\ub294 <code>cv2.getAffineTransform<\/code> \ud568\uc218\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ud568\uc218\ub294 \uc138 \uac1c\uc758 \uc6d0\ubcf8 \ud3ec\uc778\ud2b8\uc640 \ud574\ub2f9 \ud3ec\uc778\ud2b8\uc5d0 \ub300\ud55c \ub300\uc0c1 \ud3ec\uc778\ud2b8\ub97c \uc0ac\uc6a9\ud558\ub294 \ubcc0\ud658 \ud589\ub82c\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4.\n<\/p>\n<h4>\uc608\uc81c: \ubcc0\ud658 \ud589\ub82c \uacc4\uc0b0\ud558\uae30<\/h4>\n<pre><code>\nimport cv2\nimport numpy as np\n\n# \uc6d0\ubcf8 \uc774\ubbf8\uc9c0 \ubd88\ub7ec\uc624\uae30\nimg = cv2.imread('input.jpg')\n\n# \uc6d0\ubcf8 \uc774\ubbf8\uc9c0\uc5d0\uc11c \uc0ac\uc6a9\ud560 3\uac1c\uc758 \ud3ec\uc778\ud2b8 \uc815\uc758\npts1 = np.float32([[50, 50], [200, 50], [50, 200]])\n# \ubcc0\ud658 \ud6c4 \uc0ac\uc6a9\ud560 3\uac1c\uc758 \ud3ec\uc778\ud2b8 \uc815\uc758\npts2 = np.float32([[10, 100], [200, 50], [100, 250]])\n\n# \ubcc0\ud658 \ud589\ub82c \uacc4\uc0b0\nmatrix = cv2.getAffineTransform(pts1, pts2)\n\n# \uc774\ubbf8\uc9c0 \ubcc0\ud658\nresult = cv2.warpAffine(img, matrix, (img.shape[1], img.shape[0]))\n\n# \uacb0\uacfc \uc774\ubbf8\uc9c0 \ucd9c\ub825\ncv2.imshow('Warp Affine Result', result)\ncv2.waitKey(0)\ncv2.destroyAllWindows()\n<\/code><\/pre>\n<h3>4. Warp Affine\uc758 \ud65c\uc6a9<\/h3>\n<p>\n    Warp Affine\uc740 \ub2e4\uc591\ud55c \uc2e4\uc6a9\uc801\uc778 \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc5d0\uc11c\ub294 \ub450 \uac00\uc9c0 \uad6c\uccb4\uc801\uc778 \uc608\uc81c\ub97c \uc18c\uac1c\ud569\ub2c8\ub2e4.<\/p>\n<h4>4.1. \uc774\ubbf8\uc9c0 \ud68c\uc804<\/h4>\n<p>\n    \ud68c\uc804\uc740 Warp Affine\uc758 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \uc0ac\uc6a9 \uc0ac\ub840 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc774\ubbf8\uc9c0\ub97c \ud2b9\uc815 \uac01\ub3c4\ub85c \ud68c\uc804\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574, \uc911\uc2ec\uc810\uacfc \ud68c\uc804 \uac01\ub3c4\ub97c \uae30\ubc18\uc73c\ub85c \ubcc0\ud658 \ud589\ub82c\uc744 \uad6c\ucd95\ud569\ub2c8\ub2e4.\n<\/p>\n<pre><code>\n# \uc774\ubbf8\uc9c0 \ud68c\uc804 \uc608\uc81c\n(h, w) = img.shape[:2]\ncenter = (w \/\/ 2, h \/\/ 2)\n\n# 45\ub3c4 \ud68c\uc804\nangle = 45\nscale = 1.0\n\n# \ud68c\uc804 \ud589\ub82c \uc0dd\uc131\nrotation_matrix = cv2.getRotationMatrix2D(center, angle, scale)\n\n# \uc774\ubbf8\uc9c0 \ud68c\uc804\nrotated_image = cv2.warpAffine(img, rotation_matrix, (w, h))\n\ncv2.imshow('Rotated Image', rotated_image)\ncv2.waitKey(0)\ncv2.destroyAllWindows()\n<\/code><\/pre>\n<h4>4.2. \uc774\ubbf8\uc9c0 \ud655\ub300 \ubc0f \ucd95\uc18c<\/h4>\n<p>\n    Warp Affine\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc774\ubbf8\uc9c0\ub97c \ud655\ub300\ud558\uac70\ub098 \ucd95\uc18c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0, \ubcc0\ud658 \ud589\ub82c\uc5d0\ub294 \uc2a4\ucf00\uc77c\ub9c1 \uc694\uc18c\uac00 \ud3ec\ud568\ub429\ub2c8\ub2e4.\n<\/p>\n<pre><code>\n# \uc774\ubbf8\uc9c0 \ud655\ub300 \ubc0f \ucd95\uc18c \uc608\uc81c\nscale_factor = 1.5  # 150% \ud655\ub300\nscaled_matrix = cv2.getAffineTransform(pts1, pts2 * scale_factor)\n\n# \uc774\ubbf8\uc9c0 \uc2a4\ucf00\uc77c\ub9c1\nscaled_image = cv2.warpAffine(img, scaled_matrix, (img.shape[1], img.shape[0]))\n\ncv2.imshow('Scaled Image', scaled_image)\ncv2.waitKey(0)\ncv2.destroyAllWindows()\n<\/code><\/pre>\n<h3>5. Warp Affine\uc758 \uc2e4\uc81c \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8<\/h3>\n<p>Warp Affine\uc740 \uc774\ubbf8\uc9c0 \ubcf4\uc815, \uac1d\uccb4 \uc778\uc2dd, \uadf8\ub9ac\uace0 Augmented Reality(\uc99d\uac15 \ud604\uc2e4)\uc640 \uac19\uc740 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \ud65c\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<h4>5.1. \uc774\ubbf8\uc9c0 \ubcf4\uc815<\/h4>\n<p>\uc65c\uace1\ub41c \uc0ac\uc9c4\uc744 \ubcf5\uc6d0\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ud2b9\ud788, \uc65c\uace1\ub41c \uce74\uba54\ub77c \ub80c\uc988\ub85c \ucd2c\uc601\ub41c \uc774\ubbf8\uc9c0\ub97c \ubcf4\uc815\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<h4>5.2. \uac1d\uccb4 \uc778\uc2dd<\/h4>\n<p>\uac1d\uccb4 \uc778\uc2dd \uacfc\uc815\uc5d0\uc11c \ub2e4\uc591\ud55c \uac01\ub3c4\uc5d0\uc11c \ucc0d\ud78c \uc0ac\uc9c4\ub4e4\uc744 \ud45c\uc900 \ud615\ud0dc\ub85c \uc870\uc815\ud558\uae30 \uc704\ud574 Warp Affine\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<h4>5.3. \uc99d\uac15 \ud604\uc2e4<\/h4>\n<p>\uc2e4\uc2dc\uac04\uc73c\ub85c \uc774\ubbf8\uc9c0\ub098 \ube44\ub514\uc624\uc5d0 3D \uac1d\uccb4\ub97c \uc62c\ub9b4 \ub54c \uc9c4\uc9dc\ucc98\ub7fc \ubcf4\uc774\uac8c \ud558\uc5ec \uc790\uc5f0\uc2a4\ub7fd\uac8c \ud558\ub824\uba74 Warp Affine\uc744 \uc0ac\uc6a9\ud558\uc5ec \uac1d\uccb4\ub97c \uc62c\ubc14\ub978 \uc704\uce58\uc5d0 \ubc30\uce58\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3>6. \uacb0\ub860<\/h3>\n<p>Warp Affine\uc740 OpenCV\uc5d0\uc11c \ub9e4\uc6b0 \uc720\uc6a9\ud558\uace0 \uac15\ub825\ud55c \ub3c4\uad6c\uc785\ub2c8\ub2e4. \ub2e4\uc591\ud55c \ubcc0\ud615\uc744 \ud1b5\ud574 \uc774\ubbf8\uc9c0\ub97c \uc870\uc815\ud558\uace0 \uac1c\uc120\ud560 \uc218 \uc788\uc73c\uba70, \uc2e4\uc81c \ube44\uc988\ub2c8\uc2a4\uc640 \uac1c\uc778 \ud504\ub85c\uc81d\ud2b8 \ubaa8\ub450\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uac15\uc88c\ub97c \ud1b5\ud574 Warp Affine\uc758 \uae30\ubcf8 \ubc0f \ud65c\uc6a9 \ubc29\ubc95\uc744 \uc775\ud788\uc168\ub2e4\uba74, \uc774\ud6c4 \ub354 \ubcf5\uc7a1\ud55c \ubcc0\ud615 \uae30\ubc95\uc73c\ub85c \ub098\uc544\uac08 \uc218 \uc788\ub294 \uc88b\uc740 \ucd9c\ubc1c\uc810\uc774 \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h3>7. \ucc38\uace0 \uc790\ub8cc<\/h3>\n<ul>\n<li><a href=\"https:\/\/opencv.org\/\">OpenCV \uacf5\uc2dd \uc6f9\uc0ac\uc774\ud2b8<\/a><\/li>\n<li><a href=\"https:\/\/docs.opencv.org\/4.x\/d4e14f.html\">OpenCV Warp Affine \ubb38\uc11c<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/opencv\/opencv\">OpenCV GitHub \ub808\ud3ec\uc9c0\ud1a0\ub9ac<\/a><\/li>\n<\/ul>\n<p>\uc774 \uac15\uc88c\ub97c \ud1b5\ud574 OpenCV\uc758 Warp Affine \uae30\ub2a5\uc744 \ud65c\uc6a9\ud558\uc5ec \ub2e4\uc591\ud55c \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c \ub3c4\uc6c0\uc774 \ub418\uae38 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>OpenCV \uac15\uc88c: Warp Affine\uc744 \ud65c\uc6a9\ud55c \uc2e4\uc6a9\uc801 \uc608\uc81c OpenCV\ub294 \ucef4\ud4e8\ud130 \ube44\uc804 \ubc0f \uc774\ubbf8\uc9c0 \ucc98\ub9ac \ubd84\uc57c\uc5d0\uc11c \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ub77c\uc774\ube0c\ub7ec\ub9ac \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc774 \uac15\uc88c\uc5d0\uc11c\ub294 OpenCV\uc758 \ubcc0\ud658 \uae30\ubc95 \uc911 \ud558\ub098\uc778 &#8216;Warp Affine&#8217;\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uace0, \uc2e4\uc81c \uc0ac\ub840\ub97c \ud1b5\ud574 \uc5b4\ub5bb\uac8c \ud65c\uc6a9\ud560 \uc218 \uc788\ub294\uc9c0 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. 1. Warp Affine\ub780 \ubb34\uc5c7\uc778\uac00? Warp Affine\uc740 2D \uc774\ubbf8\uc9c0\ub97c \uc0ac\uc120\uc73c\ub85c \uc65c\uace1\ud558\ub294 \uae30\uc220\ub85c, \ubcc0\ud658 \ud589\ub82c\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc774\ubbf8\uc9c0\ub97c &hellip; <a href=\"https:\/\/atmokpo.com\/w\/38814\/\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;OpenCV \uac15\uc88c, Warp Affine\uc744 \ud65c\uc6a9\ud55c \uc2e4\uc6a9\uc801 \uc608\uc81c&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[187],"tags":[],"class_list":["post-38814","post","type-post","status-publish","format-standard","hentry","category-opencv"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OpenCV \uac15\uc88c, Warp Affine\uc744 \ud65c\uc6a9\ud55c \uc2e4\uc6a9\uc801 \uc608\uc81c - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atmokpo.com\/w\/38814\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OpenCV \uac15\uc88c, Warp Affine\uc744 \ud65c\uc6a9\ud55c \uc2e4\uc6a9\uc801 \uc608\uc81c - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"og:description\" content=\"OpenCV \uac15\uc88c: Warp Affine\uc744 \ud65c\uc6a9\ud55c \uc2e4\uc6a9\uc801 \uc608\uc81c OpenCV\ub294 \ucef4\ud4e8\ud130 \ube44\uc804 \ubc0f \uc774\ubbf8\uc9c0 \ucc98\ub9ac \ubd84\uc57c\uc5d0\uc11c \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ub77c\uc774\ube0c\ub7ec\ub9ac \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc774 \uac15\uc88c\uc5d0\uc11c\ub294 OpenCV\uc758 \ubcc0\ud658 \uae30\ubc95 \uc911 \ud558\ub098\uc778 &#8216;Warp Affine&#8217;\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uace0, \uc2e4\uc81c \uc0ac\ub840\ub97c \ud1b5\ud574 \uc5b4\ub5bb\uac8c \ud65c\uc6a9\ud560 \uc218 \uc788\ub294\uc9c0 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. 1. 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