{"id":38792,"date":"2024-11-02T00:57:07","date_gmt":"2024-11-02T00:57:07","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=38792"},"modified":"2024-11-26T06:43:19","modified_gmt":"2024-11-26T06:43:19","slug":"opencv-%ea%b0%95%ec%a2%8c-%ec%96%bc%ea%b5%b4-%ed%95%84%ed%84%b0-%eb%b0%8f-%ea%b0%80%ec%83%81-%ec%98%a4%eb%b8%8c%ec%a0%9d%ed%8a%b8-%ec%82%bd%ec%9e%85","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/38792\/","title":{"rendered":"OpenCV \uac15\uc88c, \uc5bc\uad74 \ud544\ud130 \ubc0f \uac00\uc0c1 \uc624\ube0c\uc81d\ud2b8 \uc0bd\uc785"},"content":{"rendered":"

<\/p>\n

\n OpenCV\ub294 \uc774\ubbf8\uc9c0 \ubc0f \ube44\ub514\uc624 \ucc98\ub9ac\uc5d0 \ub9e4\uc6b0 \uc720\uc6a9\ud55c \uc624\ud508 \uc18c\uc2a4 \ucef4\ud4e8\ud130 \ube44\uc804 \ub77c\uc774\ube0c\ub7ec\ub9ac\ub85c, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \uc5bc\uad74 \uc778\uc2dd\uc744 \uae30\ubc18\uc73c\ub85c \ud55c \ud544\ud130\uc640 \uac00\uc0c1 \uc624\ube0c\uc81d\ud2b8 \uc0bd\uc785 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc124\uba85\ud569\ub2c8\ub2e4. \ud2b9\ud788, Python\uc744 \uc0ac\uc6a9\ud558\uc5ec OpenCV\ub97c \ud65c\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \uc911\uc810\uc744 \ub450\uaca0\uc2b5\ub2c8\ub2e4. \uac04\ub2e8\ud55c \uc124\uce58 \ubc29\ubc95\ubd80\ud130 \uc2dc\uc791\ud558\uc5ec, \uc2e4\uc81c \uad6c\ud604 \uacfc\uc815\uc744 \ud1b5\ud574 \ud504\ub808\uc784\uc6cc\ud06c\uc758 \uc0ac\uc6a9 \ubc29\ubc95\uc744 \uc774\ud574\ud558\uaca0\uc2b5\ub2c8\ub2e4.\n<\/p>\n

1. OpenCV \uc124\uce58<\/h2>\n

\n \uba3c\uc800, OpenCV\ub97c \uc124\uce58\ud574\uc57c \ud569\ub2c8\ub2e4. Python\uc5d0\uc11c\ub294 pip\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc27d\uac8c \uc124\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc544\ub798 \uba85\ub839\uc5b4\ub97c \ud130\ubbf8\ub110\uc5d0 \uc785\ub825\ud558\uc2ed\uc2dc\uc624:\n<\/p>\n

pip install opencv-python opencv-python-headless numpy<\/code><\/pre>\n
2. \uc5bc\uad74 \uc778\uc2dd \uae30\ubcf8 \uac1c\ub150<\/h2>\n
\n    \uc5bc\uad74 \uc778\uc2dd\uc740 \uc774\ubbf8\uc9c0\ub97c \ubd84\uc11d\ud558\uc5ec \uc0ac\ub78c\uc758 \uc5bc\uad74\uc744 \uc2dd\ubcc4\ud558\ub294 \uae30\uc220\uc785\ub2c8\ub2e4. OpenCV\uc5d0\uc11c\ub294 Haar Cascade \ubd84\ub958\uae30\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc5bc\uad74\uc744 \uac10\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubc29\ubc95\uc740 \ud559\uc2b5\ub41c XML \ud30c\uc77c\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc5bc\uad74\uc758 \ud2b9\uc9d5\uc744 \uc778\uc2dd\ud569\ub2c8\ub2e4.\n<\/p>\n
2.1 Haar Cascade \ubd84\ub958\uae30<\/h3>\n
\n    OpenCV\ub294 \ub2e4\uc591\ud55c \uc0ac\uc804 \ud6c8\ub828\ub41c Haar Cascade \ubaa8\ub378\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub4e4 \ud30c\uc77c\uc740 OpenCV \uc124\uce58 \ud3f4\ub354 \ub0b4\uc758 `\/data\/haarcascades`\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc5d0\uc11c\ub294 haarcascade_frontalface_default.xml<\/code> \ud30c\uc77c\uc744 \uc0ac\uc6a9\ud558\uaca0\uc2b5\ub2c8\ub2e4.
\n<\/opencv_install_path><\/p>\n
3. \uc5bc\uad74 \ud544\ud130 \ubc0f \uac00\uc0c1 \uc624\ube0c\uc81d\ud2b8 \uc0bd\uc785 \uad6c\ud604<\/h2>\n
\n    \uc774 \uc139\uc158\uc5d0\uc11c\ub294 \uc6f9\ucea0\uc5d0\uc11c \uc2e4\uc2dc\uac04\uc73c\ub85c \uc5bc\uad74\uc744 \uc778\uc2dd\ud558\uace0, \uadf8 \uc5bc\uad74\uc5d0 \uac00\uc0c1 \ud544\ud130\ub098 \uc624\ube0c\uc81d\ud2b8\ub97c \uc0bd\uc785\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc124\uba85\ud569\ub2c8\ub2e4.\n<\/p>\n
3.1 \uc6f9\ucea0\uc73c\ub85c \uc601\uc0c1 \ucea1\ucc98\ud558\uae30<\/h3>\n
\n    \uba3c\uc800, OpenCV\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc6f9\ucea0\uc5d0\uc11c \uc601\uc0c1\uc744 \uc77d\uc5b4\uc624\ub294 \uac04\ub2e8\ud55c \ucf54\ub4dc\ub97c \uc791\uc131\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n<\/p>\n
import cv2\n\n# \uc6f9\ucea0 \uac1d\uccb4 \uc0dd\uc131\ncap = cv2.VideoCapture(0)\n\nwhile True:\n    # \ube44\ub514\uc624 \ud504\ub808\uc784 \uc77d\uae30\n    ret, frame = cap.read()\n    if not ret:\n        break\n    \n    # \ud504\ub808\uc784 \ud45c\uc2dc\n    cv2.imshow('Webcam Feed', frame)\n    \n    # 'q' \ud0a4\ub97c \ub204\ub974\uba74 \uc885\ub8cc\n    if cv2.waitKey(1) & 0xFF == ord('q'):\n        break\n\n# \uc790\uc6d0 \ud574\uc81c\ncap.release()\ncv2.destroyAllWindows()<\/code><\/pre>\n
3.2 \uc5bc\uad74 \uc778\uc2dd \ucd94\uac00\ud558\uae30<\/h3>\n
\n    \uc774\uc81c \uc6f9\ucea0 \ube44\ub514\uc624 \uc2a4\ud2b8\ub9bc\uc5d0\uc11c \uc5bc\uad74\uc744 \uc778\uc2dd\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. Haar Cascade \ubd84\ub958\uae30\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc5bc\uad74\uc744 \uac80\ucd9c\ud558\uace0, \uac80\ucd9c\ub41c \uc5bc\uad74\uc5d0 \uc0ac\uac01\ud615\uc744 \uadf8\ub824 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n<\/p>\n
import cv2\n\n# \uc5bc\uad74 \uac80\ucd9c\uc6a9 Haar Cascade \ub85c\ub4dc\nface_cascade = cv2.CascadeClassifier(cv2.data.haarcascades + 'haarcascade_frontalface_default.xml')\n\ncap = cv2.VideoCapture(0)\n\nwhile True:\n    ret, frame = cap.read()\n    if not ret:\n        break\n    \n    # \ud751\ubc31 \uc774\ubbf8\uc9c0\ub85c \ubcc0\ud658\n    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)\n    \n    # \uc5bc\uad74 \uac80\ucd9c\n    faces = face_cascade.detectMultiScale(gray, scaleFactor=1.1, minNeighbors=5)\n    \n    # \uac80\ucd9c\ub41c \uc5bc\uad74\uc5d0 \uc0ac\uac01\ud615 \uadf8\ub9ac\uae30\n    for (x, y, w, h) in faces:\n        cv2.rectangle(frame, (x, y), (x+w, y+h), (255, 0, 0), 2)\n    \n    cv2.imshow('Face Detection', frame)\n    \n    if cv2.waitKey(1) & 0xFF == ord('q'):\n        break\n\ncap.release()\ncv2.destroyAllWindows()<\/code><\/pre>\n
3.3 \uc5bc\uad74 \ud544\ud130 \uc801\uc6a9\ud558\uae30<\/h3>\n
\n    \uc5bc\uad74\uc744 \uac10\uc9c0\ud55c \ud6c4, \uadf8 \uc704\uc5d0 \ud544\ud130\ub97c \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc7ac\ubbf8\uc788\ub294 \ubaa8\uc790 \uc774\ubbf8\uc9c0\ub97c \uc5bc\uad74 \uc704\uc5d0 \uc62c\ub9ac\ub294 \uac83\uc744 \uc2dc\uc5f0\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc774\ubbf8\uc9c0\ub97c \ub85c\ub4dc\ud558\uace0 \ubcc0\ud658\ud569\ub2c8\ub2e4.\n<\/p>\n
import cv2\n\n# \uc5bc\uad74 \uac80\ucd9c\uc6a9 Haar Cascade \ub85c\ub4dc\nface_cascade = cv2.CascadeClassifier(cv2.data.haarcascades + 'haarcascade_frontalface_default.xml')\n\n# \ud544\ud130\ub85c \uc0ac\uc6a9\ud560 \uc774\ubbf8\uc9c0 \ub85c\ub4dc\nhat_image = cv2.imread('hat.png', -1)  # \uc54c\ud30c \ucc44\ub110 \ud3ec\ud568\ud558\uc5ec \ub85c\ub4dc\n\ncap = cv2.VideoCapture(0)\n\nwhile True:\n    ret, frame = cap.read()\n    if not ret:\n        break\n    \n    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)\n    faces = face_cascade.detectMultiScale(gray, scaleFactor=1.1, minNeighbors=5)\n\n    for (x, y, w, h) in faces:\n        # \ud544\ud130 \uc774\ubbf8\uc9c0\ub97c \uc5bc\uad74 \ud06c\uae30\uc5d0 \ub9de\uac8c \uc870\uc815\n        hat_resized = cv2.resize(hat_image, (w, int(h \/ 2)))\n\n        # \ud544\ud130 \uc774\ubbf8\uc9c0\uc758 \uc54c\ud30c \ucc44\ub110\n        alpha_hat = hat_resized[:, :, 3] \/ 255.0\n        alpha_frame = 1.0 - alpha_hat\n\n        # \uc774\ubbf8\uc9c0 \ud569\uc131\n        for c in range(0, 3):\n            frame[y: y + hat_resized.shape[0], x: x + hat_resized.shape[1], c] = (alpha_hat * hat_resized[:, :, c] + \n                                                                                   alpha_frame * frame[y: y + hat_resized.shape[0], x: x + hat_resized.shape[1], c])\n\n    cv2.imshow('Face Filter', frame)\n    \n    if cv2.waitKey(1) & 0xFF == ord('q'):\n        break\n\ncap.release()\ncv2.destroyAllWindows()<\/code><\/pre>\n
4. \uacb0\uacfc \ud655\uc778<\/h2>\n
\n    \uc704\uc758 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uba74 \uc6f9\ucea0\uc5d0\uc11c \uc5bc\uad74\uc744 \uac10\uc9c0\ud558\uace0, \uc9c0\uc815\ud55c \uc774\ubbf8\uc9c0\ub97c \ud544\ud130\ub85c\uc368 \uc5bc\uad74 \uc704\uc5d0 \uacb9\uccd0 \ub193\ub294 \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud544\ud130\uc640 \uc774\ubbf8\uc9c0\ub294 \uc790\uc720\ub86d\uac8c \ubcc0\uacbd\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \ud6a8\uacfc\ub97c \uc2e4\ud5d8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n<\/p>\n
5. \uacb0\ub860<\/h2>\n
\n    \ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 OpenCV\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc5bc\uad74 \uc778\uc2dd \ubc0f \ud544\ud130 \uc801\uc6a9 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. OpenCV\uc758 \uac15\ub825\ud55c \uae30\ub2a5\uc744 \ud65c\uc6a9\ud558\uba74 \ub2e4\uc591\ud55c \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc744 \uad6c\ud604\ud560 \uc218 \uc788\uc73c\uba70, \uc190\uc27d\uac8c \uc2e4\uc2dc\uac04 \uc774\ubbf8\uc9c0 \ucc98\ub9ac\uac00 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc55e\uc73c\ub85c\ub3c4 OpenCV\ub97c \ud65c\uc6a9\ud55c \ub2e4\uc591\ud55c \ud504\ub85c\uc81d\ud2b8\uc5d0 \ub3c4\uc804\ud574 \ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.\n<\/p>\n
6. \ucc38\uace0 \uc790\ub8cc<\/h2>\n