- \n
- \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd5\u304c\u3044\u308d\u3044\u308d\u3042\u3063\u3066\u8ff7\u3046<\/b><\/li>\n\n\n\n
- opencv-python\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u30b3\u30fc\u30c9\u3092\u8a66\u3057\u3066\u3082\u3001\u306a\u305c\u304b\u3046\u307e\u304f\u3044\u304b\u306a\u3044<\/b><\/li>\n<\/ul>\n\n\n<\/div>\n\n\n\n
\u305d\u3053\u3067\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3088\u304f\u7d39\u4ecb\u3055\u308c\u3066\u3044\u308b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd53\u3064\u3092\u7d39\u4ecb\u3057\u305f\u4e0a\u3067\u3001\u30aa\u30b9\u30b9\u30e1\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd5\u30921\u3064\u306b\u7d5e\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001\u30ad\u30c1\u30f3\u3068\u52d5\u4f5c\u3059\u308b\u30b3\u30fc\u30c9\u3082\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u5909\u66f4\u3059\u308b\u30b3\u30c4\u3068\u3042\u308f\u305b\u3066\u66f8\u304d\u307e\u3057\u305f\u3002opencv-python\u3092\u4f7f\u3044\u59cb\u3081\u308b\u7b2c\u4e00\u6b69\u3068\u3057\u3066<\/b>\u3001\u3061\u3087\u3046\u3069\u826f\u3044\u8a18\u4e8b\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u8a18\u4e8b\u3092\u8aad\u307f\u306a\u304c\u3089\u624b\u3092\u52d5\u304b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n\n\n\n
\u672c\u8a18\u4e8b\u3092\u8aad\u3080\u524d\u306b\u3001Python\u304c\u3069\u3093\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306a\u306e\u304b\u3092\u304a\u3055\u3089\u3044\u3057\u3066\u304a\u304d\u305f\u3044\u4eba\u306f\u6b21\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
\u2192 Python\u3068\u306f\uff1f\u7279\u5fb4\u3084\u3067\u304d\u308b\u3053\u3068\u3001\u6d3b\u7528\u4f8b\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u7c21\u5358\u306b\u89e3\u8aac<\/a><\/p>\n\n\n\n
\u306a\u304a\u3001\u305d\u306e\u4ed6\u306ePython\u306e\u8a18\u4e8b\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
OpenCV\u3068\u306f<\/h2>\n\n\n\n
OpenCV\uff08Open Source Computer Vision Library\uff09\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3067\u753b\u50cf\u3084\u52d5\u753b\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u6a5f\u80fd\u304c\u307e\u3068\u3081\u3066\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u3001\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002<\/p>\n\n\n\n
\u6a5f\u80fd\u304c\u8c4a\u5bcc\u3059\u304e\u3066\u3053\u306e\u8a18\u4e8b\u3067\u306f\u7d39\u4ecb\u3057\u304d\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
\u300cOpenCV-Python Tutorials\u300d\u3068\u3044\u3046\u30b5\u30a4\u30c8\u3067\u3001\u69d8\u3005\u306a\u6a5f\u80fd\u304c\u7d39\u4ecb<\/b>\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
![\"opencv-python01\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/05\/opencv-python01.png\")
<\/figure>\n\n\n\n\u5f15\u7528\u5143\uff1aOpenCV\u3000https:\/\/opencv-python-tutroals.readthedocs.io\/en\/latest\/py_tutorials\/py_imgproc\/py_table_of_contents_imgproc\/py_table_of_contents_imgproc.html<\/div><\/a><\/p>\n\n\n\n\u306a\u304a\u3001OpenCV\u306fPython\u306b\u9650\u3089\u305a\u3001C++\u7528\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3084Java\u7528\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c\u7528\u610f\u3055\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u3089\u306e\u8a00\u8a9e\u304b\u3089\u3082\u540c\u3058\u6a5f\u80fd\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Python\u304b\u3089\u5229\u7528\u3059\u308bopencv-python\u3060\u3051\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
opencv-python\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3088\u3046<\/h2>\n\n\n\n
Python\u304b\u3089OpenCV\u3092\u5229\u7528\u3059\u308b\u306b\u306f\u3001opencv-python\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002OpenCV\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u65b9\u6cd5\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u307e\u3059\u304c\u3001\u521d\u3081\u306b\u7d39\u4ecb\u3057\u3066\u3044\u308b\u300cpip install opencv-python\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u300d<\/b>\u304c\u6700\u3082\u7c21\u5358\u3067\u30aa\u30b9\u30b9\u30e1\u3067\u3059\u3002<\/p>\n\n\n\n
\u79c1\u306f\u3001Anaconda\u3067\u300copencv\u300d\u3068\u3044\u3046\u540d\u524d\u306eAnaconda\u74b0\u5883\uff08Python 3.6\uff09\u3092\u4f5c\u6210\u3057\u3066\u3001\u305d\u3053\u306bopencv-python\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
Anaconda\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n \n
\n\n\n![](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/02\/shutterstock_629004191_eye-150x86.jpg\")
\n <\/div>\n \n\u3010TensorFlow\/Chainer\u6311\u6226\u8005\u5fc5\u898b\u3011Anaconda\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd5<\/div>\n\u66f4\u65b0\u65e5\uff1a2025\u5e7412\u670826\u65e5<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/a>\n \n\n\n\npip install opencv-python\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b<\/h4>\n\n\n\n
\u7e70\u308a\u8fd4\u3057\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u79c1\u304c\u6700\u3082\u30aa\u30b9\u30b9\u30e1\u3059\u308b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd5\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u3082\u3001\u3053\u306e\u65b9\u6cd5\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305fopencv-python\u3068numpy\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\uff081\uff09Anaconda\u74b0\u5883\uff08opencv\uff09\u306e\u30bf\u30fc\u30df\u30ca\u30eb\u3092\u8d77\u52d5\u3057\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
pip install opencv-python<\/pre>\n\n\n\n
\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3046\u3068\u3001opencv-python\u3060\u3051\u3067\u306a\u304f\u3001numpy\u3082\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
pip install opencv_python\u2011X.X.X\u2011cpXX\u2011cpXXm\u2011win_amd64.whl\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b<\/h4>\n\n\n\n
\u4e0a\u306e\u65b9\u6cd5\u304c\u6c17\u306b\u5165\u3089\u306a\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306bwhl\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\uff081\uff09https:\/\/www.lfd.uci.edu\/~gohlke\/pythonlibs\/#opencv<\/a>\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3001whl\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u79c1\u306e\u74b0\u5883\u3067\u306f\u300copencv_python\u20113.4.1\u2011cp36\u2011cp36m\u2011win_amd64.whl\u300d\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u304a\u4f7f\u3044\u306e\u74b0\u5883\u306b\u5408\u308f\u305b\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e<\/b>\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
\uff082\uff09\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u305f\u3089\u3001Anaconda\u74b0\u5883\uff08opencv\uff09\u306e\u30bf\u30fc\u30df\u30ca\u30eb\u3092\u8d77\u52d5\u3057\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
pip install opencv_python\u20113.4.1\u2011cp36\u2011cp36m\u2011win_amd64.whl<\/pre>\n\n\n\n
\uff083\uff09\u540c\u69d8\u306b\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u3066\u3001numpy\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
pip install numpy<\/pre>\n\n\n\n
\u3053\u308c\u3067\u3001opencv-python\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
OpenCV\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u5229\u7528\u3059\u308b<\/h4>\n\n\n\n
\u4e0a\u8a18\u306e2\u3064\u306e\u65b9\u6cd5\u4ee5\u5916\u306b\u3001OpenCV\u306e\u516c\u5f0f\u30b5\u30a4\u30c8<\/a>\u304b\u3089\u3001opencv-3.4.1-vc14_vc15.exe\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u3053\u308c\u304c\u6700\u3082\u4fe1\u983c\u3067\u304d\u308b\u3068\u8003\u3048\u3001\u771f\u3063\u5148\u306b\u6311\u6226\u3057\u305f\u306e\u3067\u3059\u304c\u3001\u6b8b\u5ff5\u306a\u304c\u3089Python 2.7\u5c02\u7528\u3067\u3001Python 3.6\u3067\u306f\u52d5\u4f5c\u3057\u307e\u305b\u3093<\/b>\u3067\u3057\u305f\u3002<\/p>\n\n\n\n
\u4ee3\u8868\u7684\u306a\u6a5f\u80fd\u3092\u78ba\u8a8d\u3057\u3088\u3046<\/h2>\n\n\n\n
opencv-python\uff08OpenCV\uff09\u306e\u4ee3\u8868\u7684\u306a\u6a5f\u80fd\u3092\u7d39\u4ecb\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u30b3\u30fc\u30c9\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u306e\u3067\u3001\u304a\u624b\u6301\u3061\u306e\u753b\u50cf\u3067\u3044\u308d\u3044\u308d\u8a66\u3057\u3066\u898b\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n\n\n\n
\u9854\u691c\u51fa\u3092\u8a66\u3057\u3066\u307f\u3088\u3046<\/h3>\n\n\n\n
\u9854\u691c\u51fa\u306f\u3001cv2.CascadeClassifier()\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
OpenCV-Python\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u3067\u53d6\u308a\u4e0a\u3052\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u5f15\u7528\u5143\uff1aOpenCV\u3000https:\/\/opencv-python-tutroals.readthedocs.io\/en\/latest\/py_tutorials\/py_objdetect\/py_face_detection\/py_face_detection.html<\/a><\/p>\n\n\n\n
\u306a\u304a\u3001CascadeClassifier()\u3067\u6307\u5b9a\u3057\u3066\u3044\u308bxml\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u30d5\u30a9\u30eb\u30c0\u300cC:UsersXXXXXXXXAnaconda3envsOpenCVLibsite-packagescv2data\u300d\u306f\u3001Anaconda\u74b0\u5883\uff08opencv\uff09\u5185\u306e\u30d5\u30a9\u30eb\u30c0\u3067\u3001opencv-python\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3068\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
import numpy as np\nimport cv2\n\nface_cascade = cv2.CascadeClassifier('C:UsersXXXXXXXXAnaconda3envsOpenCVLibsite-packagescv2datahaarcascade_frontalface_default.xml')\neye_cascade = cv2.CascadeClassifier('C:UsersXXXXXXXXAnaconda3envsOpenCVLibsite-packagescv2datahaarcascade_eye.xml')\n\nimg = cv2.imread('shutterstock_1055756639.jpg')\ngray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)\n\nfaces = face_cascade.detectMultiScale(gray, 1.3, 5)\nfor (x,y,w,h) in faces:\n img = cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)\n roi_gray = gray[y:y+h, x:x+w]\n roi_color = img[y:y+h, x:x+w]\n eyes = eye_cascade.detectMultiScale(roi_gray)\n for (ex,ey,ew,eh) in eyes:\n cv2.rectangle(roi_color,(ex,ey),(ex+ew,ey+eh),(0,255,0),2)\n\ncv2.imshow('img',img)\ncv2.waitKey(0)\ncv2.destroyAllWindows()<\/pre>\n\n\n\n\u5143\u753b\u50cf\uff1a<\/p>\n\n\n\n
![\"shutterstock_1055756639\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/05\/shutterstock_1055756639.jpg\")
\u753b\u50cf\uff1ashutter stock<\/div>
\u691c\u51fa\u7d50\u679c\uff1a<\/p>\n\n\n\n![\"opencv-python02\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/05\/opencv-python02.png\")
<\/figure>\n\n\n\n\u76ee\u3058\u3083\u306a\u3044\u3068\u3053\u308d\u3082\u691c\u51fa\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u6982\u306d\u3088\u3055\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n
\u8f2a\u90ed\u3092\u691c\u51fa\u3057\u3066\u307f\u3088\u3046<\/h3>\n\n\n\n
\u8f2a\u90ed\u691c\u51fa\u306f\u3001cv2.findContours()\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
OpenCV-Python\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u3067\u53d6\u308a\u4e0a\u3052\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u5f15\u7528\u5143\uff1aOpenCV\u3000https:\/\/opencv-python-tutroals.readthedocs.io\/en\/latest\/py_tutorials\/py_imgproc\/py_contours\/py_contours_begin\/py_contours_begin.html<\/a><\/p>\n\n\n\n
\u753b\u50cf\u3092\u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u306b\u5909\u66f4\u3057\u3001\u5404\u70b9\u306e\u660e\u308b\u3055\u304c\u3042\u308b\u7a0b\u5ea6\u306e\u5834\u6240\u3092\u8f2a\u90ed\u3068\u3057\u3066\u691c\u51fa\u3057\u307e\u3059\u3002cv2.findContours()\u3067\u8f2a\u90ed\u3092\u691c\u51fa<\/b>\u3057\u3001cv2.drawContours()\u3067\u3001\u8f2a\u90ed\u3068\u3057\u3066\u691c\u51fa\u3055\u308c\u305f\u90e8\u5206\u306b\u8d64\u3044\u7dda\u3092\u63cf\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
6\u884c\u76ee\u306ecv2.threshold()\u3067\u6307\u5b9a\u3057\u3066\u3044\u308b\u300c88\u300d\u304c\u660e\u308b\u3055\u306e\u5883\u754c\u5024\u306b\u306a\u3063\u3066\u3044\u3066\u3001\u3053\u308c\u3092\u8abf\u7bc0\u3059\u308b\u3068\u691c\u51fa\u3055\u308c\u308b\u8f2a\u90ed\u306e\u5f62\u72b6\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
import numpy as np\nimport cv2\n\nim = cv2.imread('shutterstock_401797897.jpg')\nimgray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)\nret,thresh = cv2.threshold(imgray,88,255,0)\nimg, contours, hierarchy = cv2.findContours(thresh,cv2.RETR_EXTERNAL,cv2.CHAIN_APPROX_SIMPLE)\n\nimg = cv2.drawContours(im, contours, -1, (0,0,255), 3)\n\ncv2.imshow('im',im)\ncv2.waitKey(0)\ncv2.destroyAllWindows()<\/pre>\n\n\n\n\u5143\u753b\u50cf\uff1a<\/p>\n\n\n\n
![\"shutterstock_401797897\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/05\/shutterstock_401797897.jpg\")
\u5f15\u7528\u5143\uff1ashutter stock<\/div>
\u691c\u51fa\u3057\u305f\u8f2a\u90ed\uff08\u8d64\u7dda\uff09\uff1a<\/p>\n\n\n\n![\"opencv-python03\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/05\/opencv-python03.png\")
<\/figure>\n\n\n\nCanny\u6cd5\u3067\u30a8\u30c3\u30b8\u3092\u691c\u51fa\u3057\u3066\u307f\u3088\u3046<\/h3>\n\n\n\n
Canny\u6cd5\u3067\u30a8\u30c3\u30b8\u3092\u691c\u51fa\u3059\u308b\u306b\u306f\u3001cv2.Canny()\u3092\u4f7f\u3044\u307e\u3059\u3002cv2.Canny()\u306e2\u3064\u76ee\u30683\u3064\u76ee\u306e\u5f15\u6570\u3092\u8abf\u6574\u3059\u308b\u3068\u3001\u691c\u51fa\u3067\u304d\u308b\u8f2a\u90ed\u304c\u5909\u308f\u308a\u307e\u3059<\/b>\u3002<\/p>\n\n\n\n
OpenCV-Python\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u3092\u3054\u89a7\u3044\u305f\u3060\u304d\u3001Canny\u6cd5\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u7406\u89e3\u3057\u3066\u8abf\u7bc0\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
\u5f15\u7528\u5143\uff1aOpenCV\u3000https:\/\/opencv-python-tutroals.readthedocs.io\/en\/latest\/py_tutorials\/py_imgproc\/py_canny\/py_canny.html<\/a><\/p>\n\n\n\n
import cv2\nimport numpy as np\n\nimg = cv2.imread('py_back.jpg',0)\n\nedges = cv2.Canny(img,100,200)\n\ncv2.imshow('edges',edges)\ncv2.waitKey(0)\ncv2.destroyAllWindows()<\/pre>\n\n\n\n\u5143\u753b\u50cf\uff1a<\/p>\n\n\n\n
![\"py_back\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/05\/py_back.jpg\")
\u753b\u50cf\uff1ashutter stock<\/div>
\u691c\u51fa\u3057\u305f\u30a8\u30c3\u30b8\uff1a<\/p>\n\n\n\n![\"opencv-python04\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/05\/opencv-python04.png\")
<\/figure>\n\n\n\n\u753b\u50cf\u306e\u30d2\u30b9\u30c8\u30b0\u30e9\u30e0\u3092\u6c42\u3081\u3088\u3046<\/h3>\n\n\n\n
\u753b\u50cf\u306e\u30d2\u30b9\u30c8\u30b0\u30e9\u30e0\u3092\u6c42\u3081\u308b\u306b\u306f\u3001cv2.calcHist()\u3092\u4f7f\u3044\u307e\u3059\u3002\u753b\u50cf\u306e\u30d2\u30b9\u30c8\u30b0\u30e9\u30e0\u3067\u306f\u3001R\uff08\u8d64\uff09\u3001G\uff08\u7dd1\uff09\u3001B\uff08\u9752\uff09\u306e\u30c1\u30e3\u30f3\u30cd\u30eb\u3054\u3068\u306b\u3001\u6a2a\u8ef8\u304c\u660e\u308b\u3055\u306e\u968e\u8abf\uff080\uff5e255\uff09\u3092\u793a\u3057\u3001\u7e26\u8ef8\u304c\u30d4\u30af\u30bb\u30eb\u6570\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u30d2\u30b9\u30c8\u30b0\u30e9\u30e0\u3092\u6c42\u3081\u308b\u306e\u306fopencv-python\u3060\u3051\u3067\u3067\u304d\u308b\u306e\u3067\u3059\u304c\u3001\u305d\u308c\u3092\u53ef\u8996\u5316\u3059\u308b\u306e\u306f\u5927\u5909<\/b>\u3067\u3059\u3002<\/p>\n\n\n\n
\u305d\u3053\u3067\u3001\u53ef\u8996\u5316\u3059\u308b\u305f\u3081\u306bmatplotlib\u3092\u4f7f\u3044\u307e\u3059\u3002Anaconda\u74b0\u5883\uff08opencv\uff09\u306e\u30bf\u30fc\u30df\u30ca\u30eb\u3092\u8d77\u52d5\u3057\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u3066\u3001matplotlib\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
pip install matplotlib<\/pre>\n\n\n\n
matplotlib\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308c\u3070\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u304c\u52d5\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
import cv2\nimport numpy as np\nfrom matplotlib import pyplot as plt\n\nimg = cv2.imread('shutterstock_1055756639.jpg')\ncolor = ('b','g','r')\nfor i,col in enumerate(color):\n histr = cv2.calcHist([img],[i],None,[256],[0,256])\n plt.plot(histr,color = col)\n plt.xlim([0,256])\nplt.show()<\/pre>\n\n\n\n\u5143\u753b\u50cf\uff1a<\/p>\n\n\n\n
\u753b\u50cf\uff1ashutter stock<\/div>
\u30d2\u30b9\u30c8\u30b0\u30e9\u30e0\uff1a<\/p>\n\n\n\n![\"opencv-python05\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/05\/opencv-python05.png\")
<\/figure>\n\n\n\n\u5186\u3092\u691c\u51fa\u3057\u3066\u307f\u3088\u3046<\/h3>\n\n\n\n
\u5186\u691c\u51fa\u306f\u3001cv2.HoughCircles()\u3092\u4f7f\u3044\u307e\u3059\u3002cv2.HoughCircles()\u3067\u6307\u5b9a\u3057\u3066\u3044\u308b\u300cparam1=540\u300d\u306e\u6570\u5024\u3092\u5c0f\u3055\u304f\u3059\u308b\u3068\u3001\u3082\u3063\u3068\u591a\u304f\u306e\u5186\u304c\u691c\u51fa\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
OpenCV-Python\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u3067\u53d6\u308a\u4e0a\u3052\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u5f15\u7528\u5143\uff1aOpenCV\u3000https:\/\/opencv-python-tutroals.readthedocs.io\/en\/latest\/py_tutorials\/py_imgproc\/py_houghcircles\/py_houghcircles.html<\/a><\/p>\n\n\n\n
import cv2\nimport numpy as np\n\nimg_org = cv2.imread('shutterstock_1055756639.jpg')\nimgray = cv2.cvtColor(img_org,cv2.COLOR_BGR2GRAY)\nimgray = cv2.medianBlur(imgray,5)\n\ncircles = cv2.HoughCircles(imgray,cv2.HOUGH_GRADIENT,1,20,\n param1=540,param2=30,minRadius=0,maxRadius=0)\n\ncircles = np.uint16(np.around(circles))\nfor i in circles[0,:]:\n # draw the outer circle\n cv2.circle(img_org,(i[0],i[1]),i[2],(0,255,0),2)\n # draw the center of the circle\n cv2.circle(img_org,(i[0],i[1]),2,(0,0,255),3)\n\ncv2.imshow('detected circles',img_org)\ncv2.waitKey(0)\ncv2.destroyAllWindows()<\/pre>\n\n\n\n\u5143\u753b\u50cf\uff1a<\/p>\n\n\n\n
\u753b\u50cf\uff1ashutter stock<\/div>
\u5186\u306e\u691c\u51fa\u7d50\u679c\uff08\u7dd1\u8272\u304c\u5186\u3001\u8d64\u70b9\u304c\u4e2d\u5fc3\uff09\uff1a<\/p>\n\n\n\n![\"opencv-python06\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/05\/opencv-python06.png\")
<\/figure>\n\n\n\n\u3053\u306e\u307e\u307ePython\u3092\u5b66\u3073\u7d9a\u3051\u3066\u5927\u4e08\u592b\uff1f<\/h2>\n\n\n\n
\u306a\u305cPython\u3092\u5b66\u3076\u306e\u304b\uff1f<\/h3>\n\n\n\n
\u3042\u306a\u305f\u304cPython\u3092\u5b66\u3076\u7406\u7531\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n
\n\n\n\n- \n
- Python\u304c\u4eba\u6c17\u3060\u304b\u3089\u3068\u308a\u3042\u3048\u305a\u5b66\u3093\u3067\u3044\u308b<\/li>\n\n\n\n
- AI\u3084\u6a5f\u68b0\u5b66\u7fd2\u306e\u5206\u91ce\u306b\u8208\u5473\u304c\u3042\u308b\u304b\u3089<\/li>\n<\/ul>\n\n\n<\/div>\n\n\n\n
Python\u306f\u521d\u5fc3\u8005\u5411\u3051\u306e\u8a00\u8a9e<\/b>\u3068\u8a00\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u7406\u7531\u3068\u3057\u3066\u30b7\u30f3\u30d7\u30eb\u3067\u308f\u304b\u308a\u3084\u3059\u3044\u69cb\u6587\u3084\u3001\u5b9f\u7528\u7684\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u8c4a\u5bcc\u306a\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u3001\u5b9f\u969b\u306b\u5b66\u3073\u3084\u3059\u3044\u8a00\u8a9e\u3067\u3059\u3002<\/p>\n\n\n\n
\u3057\u304b\u3057\u3001\u3082\u3057\u3042\u306a\u305f\u304c\u6a5f\u68b0\u5b66\u7fd2\u306b\u8208\u5473\u304c\u3042\u3063\u3066\u3001\u3068\u304f\u306b\u77e5\u8b58\u3082\u7121\u3044\u307e\u307e\u5b66\u7fd2\u3092\u9032\u3081\u308b\u3068\u3001\u632b\u6298\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044<\/b>\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n\n\n\n
\u6a5f\u68b0\u5b66\u7fd2\u306e\u5206\u91ce\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u4ee5\u5916\u306b\u3082\u3001\u5c02\u9580\u7684\u306a\u77e5\u8b58\u3084\u6570\u5b66\u306e\u77e5\u8b58\u3082\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u306a\u3093\u3068\u306a\u304f\u5b66\u7fd2\u3057\u3066\u3044\u308b\u3068\u65e9\u3044\u6bb5\u968e\u3067\u3064\u307e\u3065\u304d\u3084\u3059\u304f\u3001\u305d\u306e\u307e\u307e\u632b\u6298\u3057\u3066\u3057\u307e\u3046\u306a\u3093\u3066\u3053\u3068\u3082\u2026\u3002<\/p>\n\n\n\n
\u305d\u306e\u305f\u3081\u3001\u632b\u6298\u3057\u306a\u3044\u305f\u3081\u306b\u306f\u3001<\/p>\n\n\n
\n\n\n\n- \n
- \u6700\u9069\u306a\u5b66\u7fd2\u74b0\u5883\u3092\u7528\u610f\u3059\u308b<\/li>\n\n\n\n
- \u5fc5\u8981\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u30fb\u30c4\u30fc\u30eb\u3092\u5c0e\u5165\u3059\u308b<\/li>\n\n\n\n
- \u308f\u304b\u3089\u306a\u3044\u3053\u3068\u3092\u8cea\u554f\u3067\u304d\u308b\u30e1\u30f3\u30bf\u30fc\u3092\u898b\u3064\u3051\u308b<\/li>\n<\/ul>\n\n\n<\/div>\n\n\n\n
\u306a\u3069\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u52b9\u7387\u3088\u304f\u5b66\u3073\u305f\u3044\u306a\u3089\u3001\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u304c\u304a\u3059\u3059\u3081<\/h3>\n\n\n\n
\u3053\u306e\u307e\u307ePython\u3092\u5b66\u3073\u7d9a\u3051\u3066\u3044\u3044\u306e\u304b\u306a\u2026
\u307e\u3060\u307e\u3060\u77e5\u308a\u305f\u3044\u3053\u3068\u304c\u305f\u304f\u3055\u3093\u3042\u308b\uff01
\u3082\u3063\u3068\u8a73\u3057\u304fPython\u306b\u3064\u3044\u3066\u77e5\u308a\u305f\u3044\uff01<\/div>
\u3068\u3044\u3063\u305f\u60a9\u307f\u3084\u9858\u671b\u3092\u6301\u3063\u3066\u3044\u308b\u65b9\u306f\u3001\u5f0a\u793e\u300c\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2<\/a>\u300d\u3092\u3054\u5229\u7528\u4e0b\u3055\u3044\u3002<\/p>\n\n\n\n\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u306f\u3001<\/p>\n\n\n
- opencv-python\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u30b3\u30fc\u30c9\u3092\u8a66\u3057\u3066\u3082\u3001\u306a\u305c\u304b\u3046\u307e\u304f\u3044\u304b\u306a\u3044<\/b><\/li>\n<\/ul>\n\n\n<\/div>\n\n\n\n