{"id":34,"date":"2023-11-24T14:30:17","date_gmt":"2023-11-24T06:30:17","guid":{"rendered":"https:\/\/dimtechstudio.com\/?p=34"},"modified":"2023-11-25T18:38:00","modified_gmt":"2023-11-25T10:38:00","slug":"%e5%88%a9%e7%94%a8%e4%bf%a1%e5%8f%b7%e9%87%8fsemaphoreslim%e5%ae%9e%e7%8e%b0paddleocr%e7%9a%84%e7%ba%bf%e7%a8%8b%e5%ae%89%e5%85%a8%e8%ae%bf%e9%97%ae","status":"publish","type":"post","link":"http:\/\/dimtechstudio.com\/index.php\/2023\/11\/24\/%e5%88%a9%e7%94%a8%e4%bf%a1%e5%8f%b7%e9%87%8fsemaphoreslim%e5%ae%9e%e7%8e%b0paddleocr%e7%9a%84%e7%ba%bf%e7%a8%8b%e5%ae%89%e5%85%a8%e8%ae%bf%e9%97%ae\/","title":{"rendered":"\u5229\u7528\u4fe1\u53f7\u91cfSemaphoreSlim\u5b9e\u73b0PaddleOCR\u7684\u7ebf\u7a0b\u5b89\u5168\u8bbf\u95ee"},"content":{"rendered":"

\"DimTechStudio.Com\"<\/a><\/p>\n

Wlkr.Core.ThreadUtils<\/h1>\n

\u9879\u76ee\u80cc\u666f<\/h2>\n

\u65e9\u5728PaddleOCR 2.2\u7248\u672c\u65f6\u671f\uff0c\u8ba4\u8bc6\u4e86\u5468\u6770\u5927\u4f6c\u7684PaddleSharp\u9879\u76ee\uff0c\u8bd5\u7528\u5176\u4e2dPaddleOCR\u65f6\uff0c\u53d1\u73b0\u5b83\u5728\u6539\u4e3aweb api\u8c03\u7528\u65f6\u4f1a\u62a5\u9519\uff0c\u5927\u6982\u610f\u601d\u662fOCR\u5b9e\u4f8b\u7684\u5185\u5b58\u53ea\u80fd\u7531\u5176\u521b\u5efa\u7684\u7ebf\u7a0b\u624d\u5177\u6709\u8bbf\u95ee\u6743\u9650\uff0c\u4e8e\u662f\u5c31\u6709\u4e86\u672c\u9879\u76ee\u7684\u96cf\u5f62\u3002 <\/p>\n

\u6f5c\u4f0f\u4e8e\u5927\u4f6cQ\u7fa4\u4e2d\u5f88\u957f\u65f6\u95f4\uff0c\u8fd9\u4e2a\u95ee\u9898\u66f4\u662f\u8001\u751f\u5e38\u8c08\u3002\u867d\u7136\u540e\u6765\u5927\u4f6c\u5b9e\u73b0\u4e86\u57fa\u4e8eBlockingCollection<\/code>\u7684\u7ebf\u7a0b\u5b89\u5168\u793a\u4f8b\uff0c\u4e0d\u8fc7\u4f30\u8ba1\u56e0\u4e3aREADME\u5168\u662f\u82f1\u6587\uff0c\u8fd8\u662f\u51fa\u73b0\u4e86\u5f88\u591a\u661f\u9645\u73a9\u5bb6\u3002<\/p>\n

\u98df\u7528\u65b9\u5f0f<\/h2>\n

\u9879\u76ee\u4e2d\u7684SafeThreadRunner\uff0c\u4e3a\u4e86\u5b9e\u73b0\u66f4\u76f4\u89c2\u7684\u8c03\u7528\u65b9\u5f0f\uff08var res = ocr.run(mat)<\/code>\uff09\uff0c\u4f7f\u7528\u4e863\u4e2a\u4fe1\u53f7\u91cfSemaphoreSlim<\/code>\u5b9e\u73b0\u4e86\u7ebf\u7a0b\u5b89\u5168\u7684\u8f6e\u8be2\u65b9\u6cd5\uff0c\u5b83\u4eec\u7684\u4f5c\u7528\u5206\u522b\u662f\u5426\u7a7a\u95f2\uff0c\u5524\u9192\u7ebf\u7a0b\uff0c\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n

SafeThreadRunner<Cls, In, Out><\/code>\uff0c\u53ef\u4ee5\u4ece\u6cdb\u578b\u7684\u540d\u5b57\u731c\u6d4b\uff0cCls\u5bf9\u5e94OCR\u7684\u5b9e\u4f8b\uff08\u5982All\u3001Rec\u3001Det\u7b49\u4efb\u52a1\uff09\uff0cIn<\/code>\u4e3a\u8f93\u5165\u5373Mat\uff0cOut<\/code>\u4e3a\u8f93\u51fa\u5373Restful\u89c4\u8303\u7684\u8fd4\u56de\u7ed3\u679cRestResult<Out><\/code>\u3002<\/p>\n

\u6838\u5fc3\u4ee3\u7801<\/h3>\n

\u4ee3\u7801\u5f88\u7b80\u5355\uff0c\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\uff0c\u901a\u8fc7\u4fe1\u53f7\u91cf\u8d1f\u8d23\u68c0\u67e5\u7ebf\u7a0b\u662f\u5426\u7a7a\u95f2\u3002\u5982\u679c\u7a7a\u95f2\uff0c \u5219\u8bbe\u7f6e\u5165\u53c2\uff0c\u5524\u9192\u7ebf\u7a0b\u3002 <\/p>\n

public RestResult<Out> Run(In src)\n{\n    \/\/\u662f\u5426\u7a7a\u95f2\n    safeSrcSlim.Wait();\n    \/\/\u8bbe\u7f6eSource\n    Source = src;\n    \/\/\u6062\u590d\u7ebf\u7a0b\uff0c\u8fd0\u884crunFunc\n    safeRunSlim.Release();\n    \/\/\u7b49\u5f85runFunc\u7ed3\u679c\n    safeResSlim.Wait();\n    \/\/\u91ca\u653e\u4fe1\u53f7\u91cf\uff0c\u8bbe\u4e3a\u7a7a\u95f2\n    safeSrcSlim.Release();\n    return Result;\n}<\/code><\/pre>\n
\u5524\u9192\u540e\u5219\u6267\u884c\u8bc6\u522b\uff0c\u544a\u8bc9\u8c03\u7528\u8005\u8bc6\u522b\u5b8c\u6210\uff0c\u8f93\u51fa\u7ed3\u679c\u3002\uff08Dispose\u540c\u7406\uff09  <\/p>\n
private void RunByThread()\n{\n    using Cls cls = initFunc();\n    while (true)\n    {\n        safeRunSlim.Wait();\n        if (IsDisposed)\n            return;\n        try\n        {\n            Result = runFunc(cls, Source);\n        }\n        catch (Exception ex)\n        {\n            Result = new RestResult<Out>()\n            {\n                code = "500",\n                msg = ex.Message\n            };\n        }\n        finally\n        {\n            safeResSlim.Release();\n        }\n    }\n}<\/code><\/pre>\n
nuget\u5b89\u88c5\u53c2\u8003\u547d\u4ee4<\/h3>\n
# \u65b0\u5efa\u4e00\u4e2aconsole\u9879\u76ee\ndotnet new console\n# \u6dfb\u52a0nuget\u5305\ndotnet add package Wlkr.SafePaddleOCR<\/code><\/pre>\n
CPU\u52a0\u901f\u793a\u4f8b<\/h3>\n
\u672c\u9879\u76ee\u5b9e\u73b0\u7684SafePaddleOCR\u4e3aPaddleOcrAll\u5f00\u542fMkldnn\u7684\u5b9e\u4f8b\uff0c\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n
\/\/Warmup\nSafePaddleOCR safePaddleOCR = new SafePaddleOCR();\nstring imgPath = @"..\/..\/..\/..\/vx_images\/DimTechStudio-Logo.png";\nvar res = safePaddleOCR.Run(imgPath);\nConsole.Write(@"res: {res.data.Text}");<\/code><\/pre>\n
\u5b9a\u5236\u793a\u4f8b<\/h3>\n
\u5982\u9700\u8981\u5b9a\u5236\u81ea\u5df1\u7684\u7ebf\u7a0b\u5b89\u5168\u5b9e\u4f8b\uff0c\u53ef\u53c2\u8003\uff1a<\/p>\n
\/\/\u5b9e\u4f8b\u7684\u521d\u59cb\u5316\u65b9\u6cd5\nFunc<PaddleOcrAll> initFuc = () =>\n{\n    Action<PaddleConfig> device = PaddleDevice.Mkldnn();\n    var poa = new PaddleOcrAll(LocalFullModels.ChineseV3, device)\n    {\n        Enable180Classification = true,\n        AllowRotateDetection = true,\n    };\n    return poa;\n};\n\/\/\u5b9e\u4f8b\u7684\u6267\u884c\u65b9\u6cd5\nFunc<PaddleOcrAll, Mat, RestResult<PaddleOcrResult>> mthdFunc = (cls, source) =>\n{\n    var res = cls.Run(source);\n    return new RestResult<PaddleOcrResult>(res);\n};\n\/\/\u58f0\u660e\nSafeThreadRunner<PaddleOcrAll, Mat, PaddleOcrResult> safeThreadRunner = new SafeThreadRunner<PaddleOcrAll, Mat, PaddleOcrResult>(OCRFactory.BuildAllWithMkldnn, OCRFactory.RunAll);\n\/\/\u8fd0\u884c\nstring imgPath = @"..\/..\/..\/..\/vx_images\/DimTechStudio-Logo.png";\nusing var mat = Cv2.ImRead(filePath, ImreadModes.AnyColor);\nvar res = safeThreadRunner.Run(mat);<\/code><\/pre>\n
SemaphoreSlim<\/code>\u4e0eBlockingCollection<\/code>\u5bf9\u6bd4<\/h2>\n