{"id":207052,"date":"2025-07-08T09:20:49","date_gmt":"2025-07-08T01:20:49","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207052\/"},"modified":"2025-07-08T09:20:49","modified_gmt":"2025-07-08T01:20:49","slug":"%e5%9e%83%e5%9c%be%e6%94%b6%e9%9b%86%e4%b8%8d%e9%80%82%e7%94%a8%e4%ba%8e-gocv-mat","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207052\/","title":{"rendered":"\u5783\u573e\u6536\u96c6\u4e0d\u9002\u7528\u4e8e gocv.Mat"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5783\u573e\u6536\u96c6\u4e0d\u9002\u7528\u4e8e gocv.Mat<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-19 18:09:35<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\u300a\u5783\u573e\u6536\u96c6\u4e0d\u9002\u7528\u4e8e gocv.Mat\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9…\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u5047\u8bbe\u4ee3\u7801\u4e2dimg\u662f\u4e00\u4e2a3\u901a\u9053mat\u3002 \u4ee3\u7801\u5b58\u5728\u5185\u5b58\u6cc4\u6f0f\u3002 \u6211\u731c\u60f3\u5207\u7247\u201cmatsplits\u201d\u4e2d\u7684\u6307\u9488\uff08\u5f15\u7528\uff09\u4e0d\u4f1a\u88abgo\u4e2d\u7684\u5783\u573e\u6536\u96c6\u5220\u9664\u3002\u6211\u8be5\u5982\u4f55\u4fee\u590d\u5b83\uff1f<\/p>\n

for{\n    matsplits := gocv.split(img)\n    matsplits[0].close()\n    matsplits[1].close()\n    matsplits[2].close()\n}<\/pre>\n
\u4e0a\u8ff0\u4ee3\u7801\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002\u6211\u786e\u4fe1imgarr\u4e2d\u7684mat\u5bf9\u8c61\u5df2\u5173\u95ed\uff0c\u4f46\u5185\u5b58\u4f7f\u7528\u91cf\u4ecd\u5728\u589e\u957f\u3002\u4e3a\u4ec0\u4e48\uff1f<\/p>\n
\u66f4\u65b0\uff1a\u6211\u7684\u9879\u76ee\u4e2d\u7684\u90e8\u5206\u4ee3\u7801<\/p>\n
processed := 0\nfor processed < proc.imgNumber {\n    grayhconcatImg := <-proc.processedImg[0][chindex]\n    var roiList roilist\n    var numStartPosList numStartPos\n    for x := 0; x < 11520-w; x++ {\n        test := gocv.NewMat()\n        testRegion := grayhconcatImg.img.Region(image.Rect(x, 0, x+w, h))\n        gocv.BitwiseXor(chimg, testRegion, &test)\n        testRegion.Close()\n        \/\/testsplit := gocv.Split(test)\n        test.Close()\n        \/\/testsplit[0].Close()\n        \/\/testsplit[1].Close()\n\n    processed++\n}<\/pre>\n
\u5982\u679c\u201ctestsplit\u201d\u672a\u6807\u8bb0\uff0c\u5219\u4f1a\u53d1\u751f\u5185\u5b58\u6cc4\u6f0f\u3002 len(testsplit) \u662f 2\u3002 \u6211\u5df2\u7ecf\u68c0\u67e5\u8fc7\u5728testsplit[i].close()\u4e4b\u540etestsplit[0]\u548ctestsplit[1]\u662f\u5426\u5df2\u6b63\u786e\u5173\u95ed\u3002 <\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
close()\u540e\uff0cgc\u5230\u6765\u540e\uff0c\u5185\u5b58\u4f1a\u88ab\u90e8\u5206\u6e05\u9664\u3002 \u68c0\u67e5\u4e00\u4e0b\u5c31\u50cf<\/p>\n
matsplits := gocv.Split(img)\n    matsplits[0].Close()\n    matsplits[1].Close()\n    matsplits[2].Close()\n    runtime.GC()<\/pre>\n
\u50cf godebug=gctrace=1 \u4e00\u6837\u6267\u884c go run main.go 2>xx.log<\/code> \u60a8\u53ef\u4ee5\u5728 xx.log \u4e2d\u627e\u5230 gc \u5b9e\u9645\u6267\u884c\u7684\u64cd\u4f5c<\/p>\n
\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a\u5783\u573e\u6536\u96c6\u4e0d\u9002\u7528\u4e8e gocv.Mat\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207052","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207052","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207052"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207052\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}