{"id":93462,"date":"2026-08-12T16:26:02","date_gmt":"2026-08-12T08:26:02","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/93462.html"},"modified":"2026-08-12T16:26:02","modified_gmt":"2026-08-12T08:26:02","slug":"opencv%e5%85%a5%e9%97%a8-2","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/93462.html","title":{"rendered":"OpenCV\u5165\u95e8 --- 2"},"content":{"rendered":"<hr \/>\n<h3>date: 2026-08-12<\/h3>\n<h2>\u76ee\u5f55<\/h2>\n<ul>\n<li>1.\u56fe\u50cf\u57fa\u672c\u64cd\u4f5c \u2014 \u6570\u503c\u8ba1\u7b97 \u2014 \u6570\u503c\u8ba1\u7b97\u3001\u6ea2\u51fa\u5904\u7406&#xff08;\u53d6\u6a21 vs \u9971\u548c&#xff09;<\/li>\n<li>2.\u56fe\u50cf\u878d\u5408&#xff1a; \u2014 resize \u6539\u53d8 shape\u3001addWeighted \u878d\u5408<\/li>\n<li>\u56fe\u50cf\u9608\u503c&#xff1a; \u2014 threshold \u4e94\u79cd\u4e8c\u503c\u5316\u7c7b\u578b<\/li>\n<li>\u56fe\u50cf\u5e73\u6ed1\u5904\u7406&#xff1a; \u2014 \u5747\u503c\/\u65b9\u6846\/\u9ad8\u65af\/\u4e2d\u503c\/\u53cc\u8fb9\u6ee4\u6ce2<\/li>\n<li>\u56fe\u50cf\u62fc\u63a5&#xff1a; \u2014 np.hstack \/ np.vstack\u2014<\/li>\n<\/ul>\n<h2>1.\u56fe\u50cf\u57fa\u672c\u64cd\u4f5c \u2014 \u6570\u503c\u8ba1\u7b97<\/h2>\n<p>img_pp1 <span class=\"token operator\">&#061;<\/span> img_pp <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">10<\/span><br \/>\ncv<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;img_pp1&#039;<\/span><span class=\"token punctuation\">,<\/span> img_pp1<span class=\"token punctuation\">)<\/span><br \/>\ncv<span class=\"token punctuation\">.<\/span>waitKey<span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\ncv<span class=\"token punctuation\">.<\/span>destroyAllWindows<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>img_pp<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>\u7ed3\u679c&#xff1a;<\/p>\n<p>(146, 133, 3)<br \/>\narray([[254, 254, 254, &#8230;, 254, 254, 254], [254, 254, 254, &#8230;, 254, 254, 254], [253, 253, 253, &#8230;, 254, 254, 254], [253, 253, 253, &#8230;, 254, 254, 254], [252, 252, 252, &#8230;, 254, 254, 254]], shape&#061;(5, 526), dtype&#061;uint8)<\/p>\n<p>img_pp1<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>\u7ed3\u679c&#xff1a;<\/p>\n<p>array([[8, 8, 8, &#8230;, 8, 8, 8], [8, 8, 8, &#8230;, 8, 8, 8], [7, 7, 7, &#8230;, 8, 8, 8], [7, 7, 7, &#8230;, 8, 8, 8], [6, 6, 6, &#8230;, 8, 8, 8]], shape&#061;(5, 526), dtype&#061;uint8)<\/p>\n<p>img_pp2 <span class=\"token operator\">&#061;<\/span> img_pp1 <span class=\"token operator\">&#043;<\/span> img_pp<br \/>\nimg_pp2<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>\u8fd0\u884c\u7ed3\u679c&#xff1a;<\/p>\n<p>array([[6, 6, 6, &#8230;, 6, 6, 6], [6, 6, 6, &#8230;, 6, 6, 6], [4, 4, 4, &#8230;, 6, 6, 6], [4, 4, 4, &#8230;, 6, 6, 6], [2, 2, 2, &#8230;, 6, 6, 6]], shape&#061;(5, 526), dtype&#061;uint8)<\/p>\n<p>\u4f7f\u7528opencv\u51fd\u6570&#xff1a;<\/p>\n<p>cv<span class=\"token punctuation\">.<\/span>add<span class=\"token punctuation\">(<\/span>img_pp1<span class=\"token punctuation\">,<\/span> img_pp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>\u8fd0\u884c\u7ed3\u679c&#xff1a;<\/p>\n<p>array([[255, 255, 255, &#8230;, 255, 255, 255], [255, 255, 255, &#8230;, 255, 255, 255], [255, 255, 255, &#8230;, 255, 255, 255], [255, 255, 255, &#8230;, 255, 255, 255], [255, 255, 255, &#8230;, 255, 255, 255]], shape&#061;(5, 526), dtype&#061;uint8)<\/p>\n<ul>\n<li>\u7531\u6b64\u53ef\u5f97&#xff0c;\u6ea2\u51fa\u5904\u7406&#xff1a;<\/li>\n<\/ul>\n<table>\n<tr>\u8fd0\u7b97\u65b9\u5f0f\u6ea2\u51fa\u5904\u7406\u4f8b&#xff1a;200&#043;100<\/tr>\n<tbody>\n<tr>\n<td>numpy \u76f4\u63a5 img1 &#043; img2<\/td>\n<td>\u53d6\u6a21&#xff08;mod 256&#xff0c;\u7ed5\u56de&#xff09;<\/td>\n<td>300 % 256 &#061; 44 \u274c<\/td>\n<\/tr>\n<tr>\n<td>cv.add(img1, img2)<\/td>\n<td>\u9971\u548c&#xff08;\u5c01\u9876&#xff09;<\/td>\n<td>255 \u2705<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\n<h3>[:5,:,0] \u600e\u4e48\u7406\u89e3<\/h3>\n<ul>\n<li>\u8fd9\u662f numpy \u6570\u7ec4\u5207\u7247\u7684\u95ee\u9898&#xff0c;numpy \u591a\u7ef4\u6570\u7ec4\u7d22\u5f15\u662f\u9010\u7ef4\u7684&#xff0c;\u9017\u53f7\u5206\u9694\u6bcf\u4e00\u7ef4&#xff1a;\u6570\u7ec4[\u7b2c0\u7ef4, \u7b2c1\u7ef4, \u7b2c2\u7ef4, &#8230;],\u5bf9\u56fe\u50cf&#xff08;\u4e09\u7ef4\u6570\u7ec4 img[\u9ad8, \u5bbd, \u901a\u9053]&#xff09;\u6765\u8bf4&#xff0c;img[:5, :, 0] \u62c6\u5f00\u770b&#xff1a;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table>\n<tr>\u90e8\u5206\u542b\u4e49\u4f5c\u7528<\/tr>\n<tbody>\n<tr>\n<td>:5<\/td>\n<td>\u7b2c 0 \u7ef4&#xff08;\u9ad8\/\u884c&#xff09;\u53d6\u524d 5 \u4e2a<\/td>\n<td>\u7b49\u4ef7 0:5&#xff0c;\u53d6\u524d 5 \u884c<\/td>\n<\/tr>\n<tr>\n<td>:<\/td>\n<td>\u7b2c 1 \u7ef4&#xff08;\u5bbd\/\u5217&#xff09;\u5168\u90e8<\/td>\n<td>\u6240\u6709\u5217\u90fd\u8981<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>\u7b2c 2 \u7ef4&#xff08;\u901a\u9053&#xff09;\u53ea\u53d6\u7b2c 0 \u4e2a<\/td>\n<td>B \u84dd\u8272\u901a\u9053<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7ed3\u679c&#xff1a;\u4e00\u5f20 5 \u00d7 \u5bbd \u7684\u4e8c\u7ef4\u6570\u7ec4\u2014\u2014\u524d 5 \u884c\u7684\u84dd\u8272\u901a\u9053\u6d53\u5ea6\u56fe\u3002 \u201c0:5\u201d \u662f\u53d6\u7b2c 0\u30011\u30012\u30013\u30014 \u884c&#xff0c;\u5171 5 \u884c \u2014\u2014 \u4e0d\u5305\u542b\u7b2c 5 \u884c\u3002 Python \u5207\u7247\u662f\u5de6\u95ed\u53f3\u5f00 [start, stop)<\/p>\n<hr \/>\n<h2>2.\u56fe\u50cf\u878d\u5408&#xff1a;<\/h2>\n<p>im1 <span class=\"token operator\">&#061;<\/span> img <span class=\"token operator\">&#043;<\/span> img_pp<br \/>\nim1<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>\u76f4\u63a5\u76f8\u52a0\u4f1a\u62a5\u9519&#xff1a;<\/p>\n<p>ValueError Traceback (most recent call last) Cell In[19], [line 1](vscode-notebook-cell:?execution_count&#061;19&amp;line&#061;1) &#8212;-&gt; [1](vscode-notebook-cell:?execution_count&#061;19&amp;line&#061;1) im1 &#061; img &#043; img_pp 2 im1[:5,:,0] ValueError: operands could not be broadcast together with shapes (146,133,3) (531,526,3)<\/p>\n<p>\u539f\u56e0\u662f\u56fe\u50cf\u7ef4\u5ea6\u4e0d\u4e00\u81f4&#xff0c;shape\u503c\u4e0d\u540c<\/p>\n<p>img_pp2 <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>resize<span class=\"token punctuation\">(<\/span>img_pp<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">.<\/span>shape<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> img<span class=\"token punctuation\">.<\/span>shape<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\nimg_pp2<span class=\"token punctuation\">.<\/span>shape<\/p>\n<p>\u901a\u8fc7resize\u51fd\u6570 &#xff0c;\u6539\u53d8\u56fe\u50cf\u7684shape\u503c<\/p>\n<p>plt<span class=\"token punctuation\">.<\/span>subplot<span class=\"token punctuation\">(<\/span><span class=\"token number\">121<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>plt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>img_pp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>plt<span class=\"token punctuation\">.<\/span>title<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;img_pp&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>subplot<span class=\"token punctuation\">(<\/span><span class=\"token number\">122<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>plt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>img_pp2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>plt<span class=\"token punctuation\">.<\/span>title<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;img_pp2&#039;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082600-6a7c2e1844ef4.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>resize\u4e0d\u4ec5\u53ef\u4ee5\u6307\u5b9a\u9ad8\u5bbd&#xff0c;\u8fd8\u80fd\u6307\u5b9a\u500d\u6570<\/li>\n<\/ul>\n<p>img_pp3 <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>resize<span class=\"token punctuation\">(<\/span>img_pp<span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>fx<span class=\"token operator\">&#061;<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span>fy<span class=\"token operator\">&#061;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\nimg_pp3<span class=\"token punctuation\">.<\/span>shape<br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>img_pp3<span class=\"token punctuation\">)<\/span><\/p>\n<ul>\n<li><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082600-6a7c2e18639ae.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/li>\n<\/ul>\n<p>res <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>addWeighted<span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">,<\/span><span class=\"token number\">0.7<\/span><span class=\"token punctuation\">,<\/span>img_pp2<span class=\"token punctuation\">,<\/span><span class=\"token number\">0.6<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>res<span class=\"token punctuation\">)<\/span><\/p>\n<ul>\n<li><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082600-6a7c2e1878cb7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u5173\u4e8eaddWeighted\u51fd\u6570\u7684\u53c2\u6570&#xff0c;\u4e24\u4e2a\u8f93\u5165&#xff0c;\u5373\u4e24\u4e2a\u56fe\u50cf&#xff0c;\u540e\u9762\u5206\u522b\u8ddf\u7740\u6743\u91cd&#xff0c;\u53ef\u4ee5\u7406\u89e3\u4e3a&#xff0c;\u8c01\u66f4\u660e\u663e&#xff0c;\u8c01\u5360\u5927\u5934&#xff0c;\u6700\u540e\u7684\u53c2\u6570\u662f\u504f\u7f6e\u91cf&#xff0c;\u540c\u6837\u8f93\u5165\u7684shape\u503c\u9700\u8981\u4e00\u6837\u3002<\/li>\n<\/ul>\n<hr \/>\n<h2>\u56fe\u50cf\u9608\u503c&#xff1a;<\/h2>\n<p>ret,dst &#061; cv.threshold(src,thresh,maxval,type)<\/p>\n<ul>\n<li>\u53c2\u6570\n<ul>\n<li>src&#xff1a; \u8f93\u5165\u56fe&#xff0c;\u53ea\u80fd\u8f93\u5165\u5355\u901a\u9053\u56fe\u50cf&#xff0c;\u901a\u5e38\u6765\u8bf4\u662f\u7070\u5ea6\u56fe<\/li>\n<li>dst&#xff1a;\u8f93\u51fa\u56fe<\/li>\n<li>thresh&#xff1a;\u9608\u503c<\/li>\n<li>maxval&#xff1a;\u5f53\u50cf\u7d20\u503c\u8d85\u8fc7\u9608\u503c&#xff08;\u6216\u8005\u5c0f\u4e8e\u9608\u503c&#xff0c;\u6839\u636etype\u6765\u51b3\u5b9a&#xff09;&#xff0c;\u6240\u8d4b\u4e88\u7684\u503c<\/li>\n<li>type&#xff1a;\u4e8c\u503c\u5316\u64cd\u4f5c\u7684\u7c7b\u578b&#xff0c;\u5305\u542b\u4ee5\u4e0b5\u79cd\u7c7b\u578b&#xff1a;\n<ul>\n<li>cv.THRESH_BINARY : \u4e8c\u503c\u5316\u3002\u50cf\u7d20\u503c &gt; thresh \u2192 maxval&#xff0c;\u5426\u5219 \u2192 0&#xff08;\u6700\u5e38\u7528&#xff0c;\u5f97\u5230\u9ed1\u767d\u56fe&#xff09;<\/li>\n<li>cv.THRESH_BINARY_INV : \u53cd\u4e8c\u503c\u5316\u3002\u50cf\u7d20\u503c &gt; thresh \u2192 0&#xff0c;\u5426\u5219 \u2192 maxval&#xff08;\u9ed1\u767d\u4e92\u6362&#xff09;<\/li>\n<li>cv.THRESH_TRUNC : \u622a\u65ad\u3002\u50cf\u7d20\u503c &gt; thresh \u2192 thresh&#xff0c;\u5426\u5219\u4e0d\u53d8&#xff08;\u9ad8\u4eae\u90e8\u5206\u88ab\u538b\u6697&#xff0c;\u4e0d\u4f1a\u5168\u9ed1&#xff09;<\/li>\n<li>cv.THRESH_TOZERO : \u53d6\u96f6\u3002\u50cf\u7d20\u503c &gt; thresh \u2192 \u539f\u503c\u4e0d\u53d8&#xff0c;\u5426\u5219 \u2192 0&#xff08;\u4f4e\u4e8e\u9608\u503c\u7684\u533a\u57df\u53d8\u9ed1&#xff09;<\/li>\n<li>cv.THRESH_TOZERO_INV : \u53cd\u53d6\u96f6\u3002\u50cf\u7d20\u503c &gt; thresh \u2192 0&#xff0c;\u5426\u5219 \u2192 \u539f\u503c\u4e0d\u53d8&#xff08;\u9ad8\u4e8e\u9608\u503c\u7684\u533a\u57df\u53d8\u9ed1&#xff09;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>img_gray <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>cvtColor<span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">,<\/span> cv<span class=\"token punctuation\">.<\/span>COLOR_BGR2GRAY<span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>img_gray<span class=\"token punctuation\">,<\/span> cmap<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#039;gray&#039;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>ret<span class=\"token punctuation\">,<\/span>thresh1 <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>threshold<span class=\"token punctuation\">(<\/span>img_gray<span class=\"token punctuation\">,<\/span><span class=\"token number\">127<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span>cv<span class=\"token punctuation\">.<\/span>THRESH_BINARY<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u8d85\u8fc7\u9608\u503c\u7684\u90e8\u5206\u5168\u53d6max&#xff0c;\u4f4e\u4e8e\u9608\u503c\u7684\u90e8\u5206\u5168\u53d60<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>thresh1<span class=\"token punctuation\">,<\/span> cmap<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#039;gray&#039;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082600-6a7c2e18947b6.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082600-6a7c2e18adac2.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\u6574\u5408\u5230\u4e00\u8d77<\/li>\n<\/ul>\n<p>ret<span class=\"token punctuation\">,<\/span>thresh1 <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>threshold<span class=\"token punctuation\">(<\/span>img_gray<span class=\"token punctuation\">,<\/span><span class=\"token number\">127<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span>cv<span class=\"token punctuation\">.<\/span>THRESH_BINARY<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u8d85\u8fc7\u9608\u503c\u7684\u90e8\u5206\u5168\u53d6max&#xff0c;\u4f4e\u4e8e\u9608\u503c\u7684\u90e8\u5206\u5168\u53d60<\/span><br \/>\nret<span class=\"token punctuation\">,<\/span>thresh2 <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>threshold<span class=\"token punctuation\">(<\/span>img_gray<span class=\"token punctuation\">,<\/span><span class=\"token number\">127<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span>cv<span class=\"token punctuation\">.<\/span>THRESH_BINARY_INV<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u8d85\u8fc7\u9608\u503c\u7684\u90e8\u5206\u5168\u53d60&#xff0c;\u4f4e\u4e8e\u9608\u503c\u7684\u90e8\u5206\u5168\u53d6max<\/span><br \/>\nret<span class=\"token punctuation\">,<\/span>thresh3 <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>threshold<span class=\"token punctuation\">(<\/span>img_gray<span class=\"token punctuation\">,<\/span><span class=\"token number\">127<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span>cv<span class=\"token punctuation\">.<\/span>THRESH_TRUNC<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u8d85\u8fc7\u9608\u503c\u7684\u90e8\u5206\u5168\u53d6\u9608\u503c&#xff0c;\u4f4e\u4e8e\u9608\u503c\u7684\u90e8\u5206\u4e0d\u53d8<\/span><br \/>\nret<span class=\"token punctuation\">,<\/span>thresh4 <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>threshold<span class=\"token punctuation\">(<\/span>img_gray<span class=\"token punctuation\">,<\/span><span class=\"token number\">127<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span>cv<span class=\"token punctuation\">.<\/span>THRESH_TOZERO<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u8d85\u8fc7\u9608\u503c\u7684\u90e8\u5206\u4e0d\u53d8&#xff0c;\u4f4e\u4e8e\u9608\u503c\u7684\u90e8\u5206\u5168\u53d60<\/span><br \/>\nret<span class=\"token punctuation\">,<\/span>thresh5 <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>threshold<span class=\"token punctuation\">(<\/span>img_gray<span class=\"token punctuation\">,<\/span><span class=\"token number\">127<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span>cv<span class=\"token punctuation\">.<\/span>THRESH_TOZERO_INV<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u8d85\u8fc7\u9608\u503c\u7684\u90e8\u5206\u5168\u53d60&#xff0c;\u4f4e\u4e8e\u9608\u503c\u7684\u90e8\u5206\u4e0d\u53d8<\/span><\/p>\n<p>imgs <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span>img_gray<span class=\"token punctuation\">,<\/span> thresh1<span class=\"token punctuation\">,<\/span> thresh2<span class=\"token punctuation\">,<\/span> thresh3<span class=\"token punctuation\">,<\/span> thresh4<span class=\"token punctuation\">,<\/span> thresh5<span class=\"token punctuation\">]<\/span><br \/>\ntitles <span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;OriginalImage&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;BINARY&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;BINARY_INV&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;TRUNC&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;TOZERO&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;TOZERO_INV&#039;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p><span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">6<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    plt<span class=\"token punctuation\">.<\/span>subplot<span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span>i<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>plt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>imgs<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;gray&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    plt<span class=\"token punctuation\">.<\/span>title<span class=\"token punctuation\">(<\/span>titles<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    plt<span class=\"token punctuation\">.<\/span>xticks<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>plt<span class=\"token punctuation\">.<\/span>yticks<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>plt<span class=\"token punctuation\">.<\/span>show<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082600-6a7c2e18c28d5.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>plt.imshow(imgs[i],&#039;gray&#039;)\n<ul>\n<li>\u7070\u5ea6\u56fe\u662f\u4e8c\u7ef4\u6570\u7ec4&#xff0c;\u672c\u8eab\u6ca1\u6709\u989c\u8272&#xff0c;\u663e\u793a\u6210\u4ec0\u4e48\u989c\u8272,\u9760 matplotlib \u7684 colormap&#xff08;\u8272\u56fe&#xff09; \u51b3\u5b9a\u3002\u800c imshow \u5bf9\u4e8c\u7ef4\u6570\u7ec4\u7684\u9ed8\u8ba4\u8272\u56fe\u662f viridis&#xff08;\u9ec4\u7eff\u6e10\u53d8&#xff09;&#xff0c;OpenCV \u5bf9\u5355\u901a\u9053\u56fe\u76f4\u63a5\u7528\u4eae\u5ea6\u503c\u663e\u793a&#xff0c;\u4e0d\u505a\u989c\u8272\u6620\u5c04\u3002\u8fd9\u5c31\u662f\u4e24\u4e2a\u5e93\u663e\u793a\u4e60\u60ef\u7684\u5dee\u522b\u3002<\/li>\n<\/ul>\n<\/li>\n<li>&#096;plt.xticks([]),plt.yticks([])\n<ul>\n<li>\u9690\u85cf\u5750\u6807\u8f74\u7684\u523b\u5ea6,\u628a x \u8f74 \/ y \u8f74\u7684\u523b\u5ea6**\u8bbe\u6210\u7a7a\u5217\u8868 []&#xff0c;\u76f8\u5f53\u4e8e&#034;\u4e0d\u663e\u793a\u4efb\u4f55\u523b\u5ea6&#034;\u2014\u2014\u523b\u5ea6\u7ebf\u548c\u523b\u5ea6\u6570\u5b57&#xff08;0\u300150\u3001100\u2026&#xff09;\u90fd\u9690\u85cf\u4e86\u3002\n<ul>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u5e38\u89c1&#xff1a;\u663e\u793a\u56fe\u50cf\u65f6&#xff0c;\u5750\u6807\u6570\u503c&#xff08;\u50cf\u7d20\u5750\u6807&#xff09;\u901a\u5e38\u6ca1\u7528&#xff0c;\u8fd8\u6321\u89c6\u7ebf\u3002\u9690\u85cf\u540e\u56fe\u50cf\u66f4\u5e72\u51c0\u3002OpenCV \u7528 matplotlib \u663e\u793a\u56fe\u7247\u65f6\u51e0\u4e4e\u90fd\u8fd9\u4e48\u5199\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e09\u4e2a\u5e38\u7528\u5199\u6cd5\u5bf9\u6bd4&#xff08;\u7531\u8f7b\u5230\u91cd&#xff09;&#xff1a;<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table>\n<tr>\u5199\u6cd5\u6548\u679c<\/tr>\n<tbody>\n<tr>\n<td>plt.xticks([]), plt.yticks([])<\/td>\n<td>\u53ea\u9690\u85cf\u523b\u5ea6&#xff0c;\u5750\u6807\u8f74\u8fb9\u6846\u8fd8\u5728<\/td>\n<\/tr>\n<tr>\n<td>plt.axis(&#039;off&#039;)<\/td>\n<td>\u9690\u85cf\u6574\u4e2a\u5750\u6807\u8f74&#xff08;\u8fb9\u6846 &#043; \u523b\u5ea6 &#043; \u6807\u7b7e&#xff09;&#xff0c;\u6700\u5f7b\u5e95<\/td>\n<\/tr>\n<tr>\n<td>plt.tick_params(left&#061;False, bottom&#061;False)<\/td>\n<td>\u7cbe\u7ec6\u63a7\u5236&#xff1a;\u53ea\u5173\u95ed\u6307\u5b9a\u65b9\u5411\u7684\u523b\u5ea6\u7ebf&#xff08;\u6700\u7075\u6d3b&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>for i in range(6):<\/li>\n<li>i \u4f9d\u6b21 &#061; 0, 1, 2, 3, 4, 5&#xff08;\u5171 6 \u6b21\u5faa\u73af&#xff09;<\/li>\n<\/ul>\n<hr \/>\n<h2>\u56fe\u50cf\u5e73\u6ed1\u5904\u7406&#xff1a;<\/h2>\n<ul>\n<li>OpenCV \u8bfb\u56fe\u9ed8\u8ba4\u662f BGR \u987a\u5e8f&#xff0c;\u800c matplotlib \u6309 RGB \u89e3\u91ca\u3002\u4e0d\u8f6c\u7684\u8bdd\u7ea2\u84dd\u8272\u5bf9\u8c03\u2014\u2014\u6bd4\u5982\u7ea2\u82b1\u4f1a\u663e\u793a\u6210\u84dd\u8272\u3002\n<ul>\n<li>\u8f6c\u6362\u65b9\u6cd5&#xff1a;<\/li>\n<li>\u65b9\u6cd5\u4e00&#xff1a;cvtColor \u663e\u5f0f\u8f6c\u6362&#xff08;\u63a8\u8350&#xff0c;\u8bed\u4e49\u6e05\u6670&#xff09;<\/li>\n<li>\u65b9\u6cd5\u4e8c&#xff1a;numpy \u53cd\u8f6c\u901a\u9053&#xff08; [&#8230;, ::-1] \u5199\u6cd5&#xff09;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span class=\"token comment\"># \u65b9\u6cd5\u4e00&#xff1a;<\/span><br \/>\nimg_rgb <span class=\"token operator\">&#061;<\/span> cv2<span class=\"token punctuation\">.<\/span>cvtColor<span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">,<\/span> cv2<span class=\"token punctuation\">.<\/span>COLOR_BGR2RGB<span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>img_rgb<span class=\"token punctuation\">)<\/span><\/p>\n<p>plt.imshow(img[&#8230;, ::-1])   # &#8230; \u7701\u7565\u524d\u9762\u7684\u7ef4&#xff0c;::-1 \u53cd\u8f6c\u6700\u540e\u4e00\u7ef4<\/p>\n<ul>\n<li>\u5982\u4f55\u7ed9\u56fe\u50cf\u52a0\u4e0a\u767d\u8272\u566a\u70b9&#xff1f;<\/li>\n<\/ul>\n<p>img_noisy <span class=\"token operator\">&#061;<\/span> img<span class=\"token punctuation\">.<\/span>copy<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\nn <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1000<\/span>    <span class=\"token comment\"># \u566a\u58f0\u70b9\u6570\u91cf<\/span><br \/>\nx <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>random<span class=\"token punctuation\">.<\/span>randint<span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> img<span class=\"token punctuation\">.<\/span>shape<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> n<span class=\"token punctuation\">)<\/span>   <span class=\"token comment\"># \u968f\u673a\u884c\u5750\u6807<\/span><br \/>\ny <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>random<span class=\"token punctuation\">.<\/span>randint<span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> img<span class=\"token punctuation\">.<\/span>shape<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> n<span class=\"token punctuation\">)<\/span>   <span class=\"token comment\"># \u968f\u673a\u5217\u5750\u6807<\/span><br \/>\nimg_noisy<span class=\"token punctuation\">[<\/span>x<span class=\"token punctuation\">,<\/span> y<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">255<\/span>   <span class=\"token comment\"># \u767d\u70b9&#xff08;\u76d0&#xff09;&#xff1b;\u6362 0 \u5c31\u662f\u9ed1\u70b9&#xff08;\u6912&#xff09;<\/span><\/p>\n<p>plt<span class=\"token punctuation\">.<\/span>subplot<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>plt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>img_noisy<span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;gray&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>title<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;img_noisy&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>title<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;noise&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>subplot<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>plt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;gray&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>title<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Original Image&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>show<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082600-6a7c2e18d9ab5.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\n<p>x &#061; np.random.randint(0, img.shape[0], n)<\/p>\n<ul>\n<li>np.random.randint \u2013 numpy \u7684\u968f\u673a\u6574\u6570\u751f\u6210\u51fd\u6570<\/li>\n<li>0 \u2013 \u6700\u5c0f\u503c&#xff08;\u5305\u542b&#xff09;\u2014\u2014\u6700\u5c0f\u7684\u6570\u662f 0<\/li>\n<li>img.shape[0] \u2013 \u6700\u5927\u503c&#xff08;\u4e0d\u5305\u542b&#xff09;\u2014\u2014\u5373\u56fe\u50cf\u884c\u6570<\/li>\n<li>n \u2013 \u751f\u6210 n \u4e2a\u6570<\/li>\n<\/ul>\n<\/li>\n<li>\n<p> img_noisy[x, y] &#061; 255<\/p>\n<ul>\n<li>\u7528\u4e24\u4e2a\u6570\u7ec4\u505a&#034;\u82b1\u5f0f\u7d22\u5f15&#034;&#xff0c;\u6279\u91cf\u7ed9\u968f\u673a\u50cf\u7d20\u8d4b\u767d\u8272<\/li>\n<li>x \u548c y \u90fd\u662f\u6570\u7ec4&#xff08;\u5404 n \u4e2a\u968f\u673a\u5750\u6807&#xff09;\u3002img_noisy[x, y] \u662f numpy \u7684\u82b1\u5f0f\u7d22\u5f15&#xff08;fancy indexing&#xff09;&#xff1a;\u4e24\u4e2a\u6570\u7ec4\u9010\u5bf9\u914d\u5bf9&#xff0c;\u4e00\u6b21\u6027\u53d6\u51fa\/\u5199\u5165 n \u4e2a\u50cf\u7d20\u4f4d\u7f6e\u3002<\/li>\n<li>\u4e24\u4e2a\u7ec6\u8282&#xff1a;\n<ul>\n<li>\n<li>\u4e0d\u662f\u7b1b\u5361\u5c14\u79ef&#xff1a;x \u6570\u7ec4 y \u6570\u7ec4\u662f\u5bf9\u5e94\u4f4d\u7f6e\u914d\u5bf9&#xff08;zip \u8bed\u4e49&#xff09;&#xff0c;\u4e0d\u662f\u6240\u6709 x\u00d7y \u7ec4\u5408<\/li>\n<\/li>\n<li>\n<li>\u5f69\u56fe\u5e7f\u64ad&#xff1a;\u5982\u679c img_noisy \u662f\u5f69\u8272\u56fe (H, W, 3)&#xff0c;\u6807\u91cf 255 \u4f1a\u81ea\u52a8\u5e7f\u64ad\u5230\u4e09\u4e2a\u901a\u9053\u2014\u2014\u6240\u4ee5 img_noisy[x, y] &#061; 255 \u548c &#061; [255,255,255] \u7ed3\u679c\u4e00\u6837<\/li>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<h3>\u5747\u503c\u6ee4\u6ce2&#xff1a;<\/h3>\n<\/li>\n<\/ul>\n<p><span class=\"token comment\">#\u5747\u503c\u6ee4\u6ce2<\/span><br \/>\n<span class=\"token comment\">#\u7b80\u5355\u7684\u5377\u79ef\u8fd0\u7b97<\/span><br \/>\nblur <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>blur<span class=\"token punctuation\">(<\/span>img_noisy<span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>blur<span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082601-6a7c2e19005f1.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\n<p>\u53ef\u4ee5\u770b\u5230&#xff0c;\u767d\u70b9\u53d8\u6de1\u4e86&#xff0c;\u4f46\u662f\u5b9e\u9645\u4e0a\u6548\u679c\u8fd8\u662f\u4e0d\u662f\u5f88\u597d\u3002<\/p>\n<\/li>\n<li>\n<h3>\u65b9\u6846\u6ee4\u6ce2&#xff1a;<\/h3>\n<\/li>\n<\/ul>\n<p><span class=\"token comment\">#\u65b9\u6846\u6ee4\u6ce2<\/span><br \/>\n<span class=\"token comment\">#\u53ef\u4ee5\u9009\u62e9\u5f52\u4e00\u5316<\/span><br \/>\nbox <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>boxFilter<span class=\"token punctuation\">(<\/span>img_noisy<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>normalize<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>box<span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082601-6a7c2e191ffed.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\u7ed3\u679c\u548c\u5747\u503c\u6ee4\u6ce2\u6ca1\u4ec0\u4e48\u533a\u522b<\/li>\n<\/ul>\n<p>dst <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>boxFilter<span class=\"token punctuation\">(<\/span>src<span class=\"token punctuation\">,<\/span> ddepth<span class=\"token punctuation\">,<\/span><br \/>\nksize<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span> dst<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span><br \/>\nanchor<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span> normalize<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span><br \/>\nborderType<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<ul>\n<li>\u53c2\u6570&#xff1a;\n<ul>\n<li>src \u2014 \u8f93\u5165\u56fe\u50cf<\/li>\n<li>ddepth \u2014 \u8f93\u51fa\u56fe\u50cf\u6df1\u5ea6&#xff0c;-1 &#061; \u4e0e src \u76f8\u540c<\/li>\n<li>ksize \u2014 \u6838\u5927\u5c0f (\u5bbd, \u9ad8)&#xff0c;\u8d8a\u5927\u8d8a\u6a21\u7cca<\/li>\n<li>dst \u2014 \u8f93\u51fa\u56fe\u50cf&#xff08;\u53ef\u7701\u7565&#xff09;<\/li>\n<li>anchor \u2014 \u951a\u70b9&#xff08;\u6838\u5185\u5bf9\u9f50\u4f4d\u7f6e&#xff09;&#xff0c;\u9ed8\u8ba4 (-1,-1)&#061;\u6838\u4e2d\u5fc3<\/li>\n<li>normalize \u2014 \u5f52\u4e00\u5316\u5f00\u5173&#xff0c;\u9ed8\u8ba4 True<\/li>\n<li>borderType \u2014 \u8fb9\u754c\u5916\u63a8\u65b9\u5f0f&#xff0c;\u9ed8\u8ba4 BORDER_DEFAULT&#xff08;\u6ce8\u610f\u4e0d\u652f\u6301 BORDER_WRAP&#xff09;<\/li>\n<li>\u548c cv.blur \u7684\u5173\u7cfb&#xff1a;blur \u53ea\u80fd\u505a\u5f52\u4e00\u5316\u5747\u503c\u6ee4\u6ce2&#xff1b;boxFilter \u662f\u52a0\u5f3a\u7248&#xff0c;\u591a\u4e00\u4e2a normalize \u5f00\u5173&#xff0c;\u5176\u4f59\u53c2\u6570\u4e00\u6837\u3002<\/li>\n<li>\u5f52\u4e00\u5316 &#061; \u8ba9\u6838\u5143\u7d20\u4e4b\u548c\u7b49\u4e8e 1&#xff0c;\u65b9\u6846\u6838\u91cc\u6bcf\u4e2a\u5143\u7d20\u90fd\u662f 1&#xff0c;3\u00d73 \u6838\u4e00\u5171 9 \u4e2a\u5143\u7d20&#xff0c;\u548c\u4e3a 9\u3002\n<ul>\n<li>normalize&#061;True&#xff1a;\u6bcf\u4e2a\u5143\u7d20\u9664\u4ee5 9 \u2192 \u6838\u53d8\u6210 1\/9 \u7684 9 \u4e2a \u2192 \u6838\u5143\u7d20\u4e4b\u548c &#061; 1 \u2192 \u8f93\u51fa\u662f\u90bb\u57df\u5e73\u5747\u503c<\/li>\n<li>normalize&#061;False&#xff1a;\u5143\u7d20\u4fdd\u6301 1 \u2192 \u6838\u5143\u7d20\u4e4b\u548c &#061; 9 \u2192 \u8f93\u51fa\u662f\u90bb\u57df\u6c42\u548c<\/li>\n<\/ul>\n<\/li>\n<li>\u4e0d\u505a\u5f52\u4e00\u5316\u610f\u5473\u7740\u4ec0\u4e48&#xff1a;\n<li>\u6570\u503c\u88ab\u653e\u5927&#xff1a;\u6bcf\u4e2a\u8f93\u51fa\u50cf\u7d20 &#061; \u90bb\u57df\u5185\u6240\u6709\u50cf\u7d20\u7684\u603b\u548c&#xff0c;\u653e\u5927 w\u00d7h \u500d\u3002900 \u8fdc\u8d85 255&#xff0c;uint8 \u76f4\u63a5\u9971\u548c\u6210\u4e00\u7247\u767d<\/li>\n<li>\u201c\u5e73\u5747&#034;\u53d8&#034;\u6c42\u548c\u201d&#xff1a;\u5f52\u4e00\u5316\u4fdd\u7559\u4eae\u5ea6\u6c34\u5e73&#xff08;\u56fe\u50cf\u6574\u4f53\u660e\u6697\u4e0d\u53d8&#xff0c;\u53ea\u662f\u53d8\u5e73\u6ed1&#xff09;&#xff1b;\u4e0d\u5f52\u4e00\u5316\u662f\u7b97\u90bb\u57df&#034;\u603b\u80fd\u91cf&#034;&#xff0c;\u56fe\u50cf\u6574\u4f53\u5267\u70c8\u53d8\u4eae<\/li>\n<li>\u7528\u9014\u4e0d\u540c&#xff1a;\u6c42\u548c\u7ed3\u679c\u9002\u5408\u7b97\u79ef\u5206\u7279\u5f81\u2014\u2014\u90bb\u57df\u7684\u603b\u4eae\u5ea6\u3001\u603b\u80fd\u91cf\u3001\u5bfc\u6570\u4e58\u79ef\u7684\u534f\u65b9\u5dee&#xff08;\u5149\u6d41\u7b97\u6cd5\u7528&#xff09;\u3002\u6240\u4ee5\u9700\u8981\u4fdd\u7559\u771f\u5b9e\u548c\u503c\u65f6&#xff0c;ddepth \u8981\u914d\u66f4\u5927\u7684\u6df1\u5ea6&#xff08;\u5982 CV_16S \u80fd\u5230 32767&#xff09;&#xff0c;\u4e0d\u80fd -1&#xff08;\u4f1a\u6ea2\u51fa\u9971\u548c&#xff09;<\/li>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u9ad8\u65af\u6ee4\u6ce2&#xff1a;<\/h3>\n<ul>\n<li>\u9ad8\u65af\u6a21\u7cca\u7684\u5377\u79ef\u6838\u91cc\u7684\u6570\u503c\u662f\u6ee1\u8db3\u9ad8\u65af\u5206\u5e03&#xff08;\u9ad8\u65af\u5206\u5e03 &#061; \u6b63\u6001\u5206\u5e03&#xff09;&#xff0c;\u76f8\u5f53\u4e8e\u66f4\u91cd\u89c6\u4e2d\u95f4\u7684&#xff0c;\u76f8\u5f53\u4e8e\u521b\u5efa\u7684\u4e00\u4e2a\u6743\u91cd\u77e9\u9635<\/li>\n<\/ul>\n<p>gaussian <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>GaussianBlur<span class=\"token punctuation\">(<\/span>img_noisy<span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>plt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>gaussian<span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082601-6a7c2e193ff5f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\u7528&#034;\u9ad8\u65af\u5206\u5e03\u5f62\u72b6&#034;\u7684\u6743\u91cd\u6838\u505a\u5e73\u6ed1\u6ee4\u6ce2 *\u4e00\u53e5\u8bdd&#xff1a;\u9ad8\u65af\u6ee4\u6ce2 &#061; \u5377\u79ef\u6838\u7684\u6743\u91cd\u4e0d\u662f\u5e73\u5747\u7684&#xff0c;\u800c\u662f\u670d\u4ece**\u9ad8\u65af\u5206\u5e03\u2014\u2014\u4e2d\u5fc3\u50cf\u7d20\u6743\u91cd\u6700\u5927&#xff0c;\u8d8a\u5f80\u8fb9\u7f18\u6743\u91cd\u8d8a\u5c0f&#xff0c;\u5bf9\u90bb\u57df\u505a\u52a0\u6743\u5e73\u5747\u6765\u5e73\u6ed1\u53bb\u566a\u3002<\/li>\n<li>dst &#061; cv.GaussianBlur(src, ksize, sigmaX)\n<ul>\n<li>ksize&#xff1a;\u6838\u5927\u5c0f&#xff0c;\u5fc5\u987b\u6b63\u5947\u6570&#xff0c;\u5982 (3,3)\u3001(5,5)<\/li>\n<li>sigmaX&#xff1a;X \u65b9\u5411\u9ad8\u65af\u6807\u51c6\u5dee&#xff0c;\u8d8a\u5927\u8d8a\u6a21\u7cca&#xff1b;\u586b 0 \u65f6\u7531 ksize \u81ea\u52a8\u8ba1\u7b97&#xff08;sigma &#061; 0.3\u00d7((ksize-1)\u00d70.5-1)&#043;0.8&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>\u5e38\u89c1\u7528\u9014&#xff1a;\u53bb\u566a&#xff1b;Canny \u8fb9\u7f18\u68c0\u6d4b\u7684\u7b2c\u4e00\u6b65\u9884\u5904\u7406&#xff1b;\u9700\u8981&#034;\u5e73\u6ed1\u4f46\u4fdd\u7559\u8fb9\u7f18&#034;\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n<p>\u95ee\u9898 1&#xff1a;\u5377\u79ef\u6838\u5927\u5c0f\u51b3\u5b9a\u4ec0\u4e48&#xff1f; \u6838\u5927\u5c0f &#061; \u201c\u6bcf\u4e2a\u50cf\u7d20\u770b\u591a\u8fdc &#043; \u5e73\u5747\u8303\u56f4\u591a\u5927\u201d&#xff0c;\u5b83\u540c\u65f6\u51b3\u5b9a&#xff1a;<\/p>\n<table>\n<tr>\u51b3\u5b9a\u4ec0\u4e48\u6838\u8d8a\u5927<\/tr>\n<tbody>\n<tr>\n<td>\u5e73\u6ed1\u5f3a\u5ea6<\/td>\n<td>\u6a21\u7cca\u8d8a\u5f3a&#xff08;\u53c2\u4e0e\u5e73\u5747\u7684\u90bb\u57df\u66f4\u5927&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u611f\u53d7\u91ce<\/td>\n<td>\u6bcf\u4e2a\u8f93\u51fa\u50cf\u7d20\u80fd&#034;\u770b\u5230&#034;\u7684\u90bb\u5c45\u8303\u56f4\u8d8a\u5927<\/td>\n<\/tr>\n<tr>\n<td>\u80fd\u53bb\u7684\u566a\u58f0<\/td>\n<td>\u80fd\u62b9\u6389\u8d8a\u5927\u7684\u566a\u70b9&#xff08;\u5c0f\u6838\u53ea\u80fd\u53bb\u5c0f\u566a\u70b9&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u7ec6\u8282\u635f\u5931<\/td>\n<td>\u8fb9\u7f18\u3001\u7eb9\u7406\u88ab\u5e73\u5747\u5f97\u8d8a\u5389\u5bb3&#xff0c;\u4e22\u5f97\u8d8a\u591a<\/td>\n<\/tr>\n<tr>\n<td>\u8fb9\u754c\u6548\u5e94<\/td>\n<td>\u56fe\u50cf\u8fb9\u7f18\u5904\u7406\u4e0d\u5230\u7684\u6761\u5e26\u8d8a\u5bbd<\/td>\n<\/tr>\n<tr>\n<td>\u8ba1\u7b97\u91cf<\/td>\n<td>\u8d8a\u5927&#xff08;\u6bcf\u50cf\u7d20 w\u00d7h \u6b21\u4e58\u52a0&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u76f4\u89c9&#xff1a;\u6838\u5927\u5c0f\u662f&#034;\u5e73\u6ed1\u5f3a\u5ea6&#034;\u548c&#034;\u7ec6\u8282\u4fdd\u7559&#034;\u7684\u65cb\u94ae\u2014\u20143\u00d73 \u53ea\u770b\u5468\u56f4\u4e00\u5708&#xff0c;5\u00d75 \u770b\u5468\u56f4\u4e24\u5708&#xff0c;\u8d8a\u5927\u8d8a\u7cca\u3001\u8d8a\u4e22\u7ec6\u8282\u3002<\/p>\n<p>\u95ee\u9898 2&#xff1a;\u4e3a\u4ec0\u4e48\u53bb\u566a\u65f6\u4e2d\u95f4\u6743\u91cd\u66f4\u5927&#xff1f;<\/p>\n<p>\u6838\u5fc3\u539f\u56e0&#xff1a;\u81ea\u7136\u56fe\u50cf\u91cc&#xff0c;\u79bb\u4e2d\u5fc3\u8d8a\u8fd1\u7684\u50cf\u7d20\u8d8a&#034;\u53ef\u4fe1&#034;&#xff0c;\u8d8a\u8fdc\u7684\u8d8a\u53ef\u80fd\u662f&#034;\u53e6\u4e00\u56de\u4e8b&#034;\u3002<\/p>\n<li>\u7a7a\u95f4\u76f8\u5173\u6027&#xff1a;\u81ea\u7136\u56fe\u50cf\u76f8\u90bb\u50cf\u7d20\u9ad8\u5ea6\u76f8\u5173\u2014\u2014\u8fd1\u5904\u50cf\u7d20\u5927\u6982\u7387\u5c5e\u4e8e\u540c\u4e00\u4e2a\u7269\u4f53\/\u533a\u57df&#xff0c;\u503c\u63a5\u8fd1&#xff1b;\u8fdc\u5904\u50cf\u7d20\u53ef\u80fd\u8de8\u8fc7\u8fb9\u7f18\u3001\u5c5e\u4e8e\u53e6\u4e00\u4e2a\u7269\u4f53<\/li>\n<li>\u4fe1\u4efb\u6a21\u578b&#xff1a;\u53bb\u566a &#061; \u7528\u90bb\u5c45\u4f30\u8ba1\u4e2d\u5fc3\u50cf\u7d20\u7684\u771f\u5b9e\u503c\u3002\u90bb\u5c45\u8d8a\u8fd1\u8d8a&#034;\u8bf4\u771f\u8bdd&#034;&#xff08;\u76f8\u5173\u6027\u5f3a&#xff09;&#xff0c;\u8d8a\u8fdc\u8d8a\u53ef\u80fd\u5e26\u6765\u9519\u8bef\u4fe1\u606f&#xff08;\u6bd4\u5982\u8fb9\u7f18\u53e6\u4e00\u8fb9\u7684\u503c&#xff09;&#xff0c;\u6240\u4ee5\u7ed9\u8fd1\u7684\u6743\u91cd\u5927\u3001\u8fdc\u7684\u6743\u91cd\u5c0f<\/li>\n<li>\u4fdd\u8fb9\u7f18&#xff08;\u5173\u952e\u533a\u522b&#xff09;&#xff1a;\u5747\u503c\u6ee4\u6ce2\u7b49\u6743\u91cd&#xff0c;\u8fb9\u7f18\u4e24\u8fb9\u50cf\u7d20\u5404\u5360\u4e00\u534a \u2192 \u8fb9\u7f18\u88ab\u5e73\u5747\u7cca\u6389&#xff1b;\u9ad8\u65af\u6ee4\u6ce2\u4e0b&#xff0c;\u8fb9\u7f18\u53e6\u4e00\u8fb9\u7684&#034;\u8fdc\u5904&#034;\u50cf\u7d20\u6743\u91cd\u5f88\u5c0f \u2192 \u8fb9\u7f18\u4fdd\u7559\u3002\u8fd9\u5c31\u662f\u9ad8\u65af\u6ee4\u6ce2&#034;\u4fdd\u8fb9\u66f4\u597d&#034;\u7684\u539f\u56e0<\/li>\n<h3>\u4e2d\u503c\u6ee4\u6ce2&#xff1a;<\/h3>\n<p><span class=\"token comment\">#\u4e2d\u503c\u6ee4\u6ce2<\/span><br \/>\n<span class=\"token comment\">#\u76f8\u5f53\u4e8e\u7528\u4e2d\u503c\u4ee3\u66ff<\/span><br \/>\nmedian <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>medianBlur<span class=\"token punctuation\">(<\/span>img_noisy<span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>median<span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082601-6a7c2e19604c8.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\u770b\u8d77\u6765\u4e2d\u503c\u6ee4\u6ce2\u7684\u6548\u679c\u66f4\u597d\n<ul>\n<li>\u4e3a\u4ec0\u4e48&#xff1a;\u5f53\u524d\u566a\u58f0\u662f\u6912\u76d0\u566a\u58f0&#xff08;\u968f\u673a\u9ed1\u767d\u70b9&#xff0c;\u89c1\u524d\u6587 img_noisy[x, y] &#061; 255 \u6492\u70b9&#xff09;\u3002\u4e2d\u503c\u6ee4\u6ce2\u628a\u90bb\u57df\u50cf\u7d20\u6392\u5e8f\u540e\u53d6\u4e2d\u503c\u2014\u2014\u767d\u70b9 255 \/ \u9ed1\u70b9 0 \u8fd9\u7c7b\u79bb\u7fa4\u503c\u6392\u5e8f\u540e\u88ab\u6324\u5230\u4e24\u7aef&#xff0c;\u53d6\u4e0d\u5230\u4e2d\u503c&#xff0c;\u6240\u4ee5\u6912\u76d0\u70b9\u88ab\u76f4\u63a5\u5254\u9664&#xff0c;\u4e14\u4e0d\u7cca\u8fb9\u7f18&#xff08;\u76f8\u6bd4\u5747\u503c\/\u9ad8\u65af\u6ee4\u6ce2&#xff09;<\/li>\n<li>cv.medianBlur(src, ksize)&#xff1a;ksize \u540c\u6837\u5fc5\u987b\u6b63\u5947\u6570&#xff1b;\u5bf9\u6912\u76d0\u566a\u58f0\u6548\u679c\u6700\u597d<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u53cc\u8fb9\u6ee4\u6ce2&#xff1a;<\/h3>\n<p>bilateral <span class=\"token operator\">&#061;<\/span> cv<span class=\"token punctuation\">.<\/span>bilateralFilter<span class=\"token punctuation\">(<\/span>img_noisy<span class=\"token punctuation\">,<\/span><span class=\"token number\">9<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">75<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">75<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>bilateral<span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082601-6a7c2e197d916.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>dst &#061; cv.bilateralFilter(src, d, sigmaColor, sigmaSpace)\n<ul>\n<li>\u53c2\u6570&#xff1a;\n<ul>\n<li>d \u2014 \u90bb\u57df\u76f4\u5f84&#xff08;\u6838\u5927\u5c0f&#xff09;&#xff0c;\u5e38\u7528 5 \u6216 9&#xff1b;\u975e\u6b63\u65f6\u7531 sigmaSpace \u81ea\u52a8\u7b97<\/li>\n<li>sigmaColor \u2014 \u989c\u8272\u76f8\u4f3c\u5ea6\u6807\u51c6\u5dee\u2014\u2014\u7070\u5ea6\u5dee\u8d85\u8fc7\u5b83\u7684\u50cf\u7d20\u4e0d\u53c2\u4e0e\u52a0\u6743&#xff08;\u4fdd\u8fb9\u5173\u952e&#xff09;<\/li>\n<li>sigmaSpace \u2014 \u7a7a\u95f4\u8ddd\u79bb\u6807\u51c6\u5dee\u2014\u2014\u548c GaussianBlur \u7684 sigma \u7c7b\u4f3c&#xff0c;\u63a7\u5236\u8ddd\u79bb\u8870\u51cf<\/li>\n<\/ul>\n<\/li>\n<li>\u4e24\u79cd\u6743\u91cd&#xff08;\u8fd9\u624d\u662f&#034;\u53cc\u8fb9&#034;\u7684\u542b\u4e49&#xff09;&#xff1a;\n<li>\u7a7a\u95f4\u6743\u91cd&#xff1a;\u79bb\u4e2d\u5fc3\u8fd1\u7684\u50cf\u7d20\u5f71\u54cd\u5927<\/li>\n<li>\u989c\u8272\u6743\u91cd&#xff1a;\u7070\u5ea6\/\u989c\u8272\u548c\u4e2d\u5fc3\u50cf\u7d20\u63a5\u8fd1\u7684\u50cf\u7d20\u5f71\u54cd\u5927<\/li>\n<\/li>\n<li>\u7528\u9014&#xff1a;\u4eba\u50cf\u78e8\u76ae\/\u7f8e\u989c&#xff08;\u6838\u5fc3\u6280\u672f&#xff09;\u3001\u53bb\u566a\u540c\u65f6\u4fdd\u7ec6\u8282\u3001\u7eb9\u7406\u4fdd\u7559\u7b49\u3002\u53c2\u6570\u76f4\u89c9&#xff1a;sigmaColor \u8d8a\u5927\u8d8a\u5e73\u6ed1&#xff08;\u5bb9\u5fcd\u66f4\u591a\u8272\u5dee&#xff09;\u3001\u8d8a\u5c0f\u4fdd\u8fb9\u8d8a\u5f3a\u4f46\u53bb\u566a\u5f31\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u56fe\u50cf\u62fc\u63a5&#xff1a;<\/h3>\n<p>res <span class=\"token operator\">&#061;<\/span> np<span class=\"token punctuation\">.<\/span>hstack<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>img_noisy<span class=\"token punctuation\">,<\/span> blur<span class=\"token punctuation\">,<\/span> box<span class=\"token punctuation\">,<\/span> gaussian<span class=\"token punctuation\">,<\/span> median<span class=\"token punctuation\">,<\/span> bilateral<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\nplt<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span>res<span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260812082601-6a7c2e19a023d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>hstack \u5c06\u56fe\u50cf\u6a2a\u5411\u62fc\u63a5<\/li>\n<li>vstack \u7ad6\u5411\u62fc\u63a5<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>date: 2026-08-12<br \/>\n\u76ee\u5f55<br \/>\n1.\u56fe\u50cf\u57fa\u672c\u64cd\u4f5c \u2014 \u6570\u503c\u8ba1\u7b97 \u2014 \u6570\u503c\u8ba1\u7b97\u3001\u6ea2\u51fa\u5904\u7406&#xff08;\u53d6\u6a21 vs \u9971\u548c&#xff09;2.\u56fe\u50cf\u878d\u5408&#xff1a; \u2014 resize \u6539\u53d8 shape\u3001addWeighted \u878d\u5408\u56fe\u50cf\u9608\u503c&#xff1a; \u2014 threshold \u4e94\u79cd\u4e8c\u503c\u5316\u7c7b\u578b\u56fe\u50cf\u5e73\u6ed1\u5904\u7406&#xff1a; \u2014 \u5747\u503c\/\u65b9\u6846\/\u9ad8\u65af\/\u4e2d\u503c\/\u53cc\u8fb9\u6ee4\u6ce2\u56fe\u50cf\u62fc\u63a5&#xff1a; \u2014 np.hstack \/ np.vstack\u2014<br \/>\n1.\u56fe\u50cf\u57fa\u672c\u64cd\u4f5c \u2014 \u6570\u503c\u8ba1\u7b97 <\/p>\n","protected":false},"author":2,"featured_media":93449,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[10187,1460,50,523],"topic":[],"class_list":["post-93462","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-codingplan","tag-opencv","tag-50","tag-523"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OpenCV\u5165\u95e8 - 2 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/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:\/\/www.wsisp.com\/helps\/93462.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OpenCV\u5165\u95e8 - 2 - 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