\n\n

\u3053\u306e\u8a18\u4e8b\u306f\u3053\u3093\u306a\u4eba\u306b\u304a\u3059\u3059\u3081\uff01<\/p>\n\n\n

\n\n
• \u753b\u50cf\u51e6\u7406\u3092\u5b66\u3093\u3067\u3044\u308b\u521d\u5fc3\u8005<\/li>\n\n\n
• \u30ce\u30a4\u30ba\u9664\u53bb\u306e\u6280\u8853\u3092\u7406\u89e3\u3057\u305f\u3044\u4eba<\/li>\n\n\n
• \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u753b\u50cf\u51e6\u7406\u3092\u5b9f\u8df5\u3057\u305f\u3044\u4eba<\/li>\n\n<\/ul>\n\n<\/div>\n\n\n\n

  \u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3068\u306f<\/h2>\n\n\n\n

  \u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3068\u306f\u7a7a\u9593\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u4e00\u7a2e\u3067\u3059\u3002<\/p>\n\n\n\n

  \u30e1\u30c7\u30a3\u30a2\u30f3(median)\u3068\u306f\u4e2d\u592e\u5024\u306e\u3053\u3068\u3002\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u306f\u3001\u5468\u8fba\u753b\u7d20\u306e\u753b\u7d20\u5024\u3092\u964d(\u6607)\u9806\u306b\u4e26\u3079\u3001\u4e2d\u592e\u5024\u3092\u51fa\u529b\u3057\u307e\u3059\u3002\u5468\u8fba\u753b\u7d20\u306b\u5bfe\u3057\u3066\u8457\u3057\u304f\u5916\u308c\u305f\u5024(\u30ce\u30a4\u30ba)\u306f\u3001\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3092\u901a\u904e\u3059\u308b\u3068\u9664\u53bb\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

  \u4e0b\u56f3\u306f3\u00d73\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3067\u30ce\u30a4\u30ba\u304c\u9664\u53bb\u3055\u308c\u308b\u30a4\u30e1\u30fc\u30b8\u56f3\u3067\u3059\u3002<\/p>\n\n\n\n

  <\/figure>\n\n\n\n

  \u5ea7\u6a19(i,j)\u306e\u753b\u7d20\u306f\u4e0a\u4e0b\u5de6\u53f3\u659c\u3081\u306b\u5bfe\u3057\u3066\u8457\u3057\u304f\u5916\u308c\u305f\u300c10\u300d\u3067\u3059\u304c\u3001\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3092\u901a\u904e\u3059\u308b\u3068\u3001\u4e0a\u4e0b\u5de6\u53f3\u659c\u3081\u306e\u753b\u7d20\u4e2d\u592e\u5024\u3067\u3042\u308b\u300c2\u300d\u306b\u5909\u63db\u3055\u308c\u3001\u30ce\u30a4\u30ba\u304c\u9664\u53bb\u3055\u308c\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

  OpenCV\u3092\u7528\u3044\u305f\u30ce\u30a4\u30ba\u9664\u53bb<\/h2>\n\n\n\n

  Python\u3068OpenCV\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u7528\u3044\u308c\u3070\u3001\u7c21\u5358\u306b\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3067\u753b\u50cf\u306e\u30ce\u30a4\u30ba\u3092\u9664\u53bb\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n

  \u3053\u3061\u3089\u304c\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u306ePython\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n

  import cv2 as cv\n\ndef concat_tile(im_list_2d):\n    return cv.vconcat([cv.hconcat(im_list_h) for im_list_h in im_list_2d])\n\nimg = cv.imread("sample.jpg") # \u5199\u771f\u306e\u8aad\u307f\u8fbc\u307f\n\nimg_median3 = cv.medianBlur(img, 3)  # 3x3\u306e\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\nimg_median5 = cv.medianBlur(img, 5)  # 5x5\u306e\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\nimg_median7 = cv.medianBlur(img, 7)  # 7x7\u306e\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\n\nimgs = concat_tile([[img, img_median3], [img_median5, img_median7]])\n\ncv.imshow("img", imgs)\ncv.imwrite("output.jpg", imgs)\n\nif cv.waitKey(0) & 0xFF == ord('q'):\n    cv.destroyAllWindows()<\/code><\/pre><\/div>\n\n\n\n
  \u5de6\u4e0a\u304c\u5143\u753b\u50cf\u3002\u53f3\u4e0a\u3001\u5de6\u4e0b\u3001\u53f3\u4e0b\u304c\u305d\u308c\u305e\u308c3×3\u30015×5\u30017×7\u306e\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3092\u9069\u7528\u3057\u305f\u753b\u50cf\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
  <\/figure>\n\n\n\n
  3×3\u30d5\u30a3\u30eb\u30bf\u30b5\u30a4\u30ba\u3067\u3001\u3054\u307e\u5869\u30ce\u30a4\u30ba\u304c\u5341\u5206\u9664\u53bb\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u306d\u3002\u30d5\u30a3\u30eb\u30bf\u30b5\u30a4\u30ba\u3092\u5927\u304d\u304f\u3057\u3059\u304e\u308b\u3068\u3001\u753b\u50cf\u5168\u4f53\u304c\u307c\u3084\u3051\u3066\u3057\u307e\u3046\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n
  medianBlur\u95a2\u6570\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u5165\u529b\u753b\u50cf\u306b\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3092\u7c21\u5358\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/div>\n\n\n
  cv.medianBlur(img, N)  # NxN\u306e\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf<\/code><\/pre><\/div>\n\n\n\n
  \u7b2c1\u5f15\u6570\u306b\u5165\u529b\u753b\u50cf\u3001\u7b2c2\u5f15\u6570\u306b\u30d5\u30a3\u30eb\u30bf\u30b5\u30a4\u30ba\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
  \u30ac\u30a6\u30b7\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3068\u306e\u6bd4\u8f03<\/h2>\n\n\n\n
  \u307c\u304b\u3057\u306e\u57fa\u672c\u3067\u3042\u308b\u30ac\u30a6\u30b7\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3067\u3082\u3001\u3054\u307e\u5869\u30ce\u30a4\u30ba\u304c\u9664\u53bb\u3067\u304d\u308b\u304b\u8a66\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
  \u30ac\u30a6\u30b7\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u306b\u3064\u3044\u3066\u306f\u3001\u4e0b\u8a18\u30ea\u30f3\u30af\u5148\u53c2\u7167\u3057\u3066\u4e0b\u3055\u3044\u3002<\/p>\n\n\n\n
  \n
  https:\/\/craft-gogo.com\/gauss-fillter\/<\/p>\n<\/div>\n\n\n\n
  \u5de6\u4e0a\u304c\u5143\u753b\u50cf\u3002\u53f3\u4e0a\u3001\u5de6\u4e0b\u3001\u53f3\u4e0b\u304c\u305d\u308c\u305e\u308c\u03c3=1\u3001\u03c3=2\u3001\u03c3=3\u306e\u30ac\u30a6\u30b7\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3092\u9069\u7528\u3057\u305f\u753b\u50cf\u3067\u3059\u3002<\/p>\n\n\n\n
  <\/figure>\n\n\n\n
  \u03c3\u3092\u5927\u304d\u304f\u3057\u306a\u3044\u3068\u3001\u3054\u307e\u5869\u30ce\u30a4\u30ba\u306f\u9664\u53bb\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002\u3054\u307e\u5869\u30ce\u30a4\u30ba\u9664\u53bb\u3067\u304d\u305f\u3068\u3057\u3066\u3082\u3001\u753b\u50cf\u306f\u304b\u306a\u308a\u307c\u3084\u3051\u3066\u3057\u307e\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n
  \u307e\u3068\u3081<\/h2>\n\n\n\n
  \u672c\u8a18\u4e8b\u3067\u306f\u3001\u30ce\u30a4\u30ba\u3092\u9664\u53bb\u3059\u308b\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
  \u753b\u50cf\u306e\u3054\u307e\u5869\u30ce\u30a4\u30ba\u3092\u9664\u53bb\u3057\u305f\u3051\u308c\u3070\u3001\u30e1\u30c7\u30a3\u30a2\u30f3\u30d5\u30a3\u30eb\u30bf\u3092\u9069\u7528\u3059\u308c\u3070\u3088\u3044\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u306d\u3002<\/p>\n\n\n\n
  \u3053\u306e\u8a18\u4e8b\u304c\u753b\u50cf\u51e6\u7406\u3092\u5b66\u3076\u7686\u3055\u3093\u306e\u305f\u3081\u306b\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n\n\n\n
  \u72ec\u5b66\u304c\u5927\u5909\u306a\u65b9\u306f\u3001\u66f8\u7c4d\u3084\u30b9\u30af\u30fc\u30eb\u3092\u6d3b\u7528<\/span><\/strong>\u3059\u308b\u306e\u3082\u624b\u3067\u3059\u3002\u79c1\u3082\u6d3b\u7528\u3057\u3066\u3044\u308b\u3082\u306e\u3092\u8f09\u305b\u3066\u304a\u304d\u307e\u3059\u306e\u3067\u53c2\u8003\u306b\u3057\u3066\u4e0b\u3055\u3044\u3002<\/p>\n\n\n\n
  \u6700\u5f8c\u307e\u3067\u304a\u8aad\u307f\u9802\u304d\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\uff01<\/p>\n\n\n\n