Node.js比使用Tesseract.Js的浏览器（Safari）慢20倍
新来的JS和非常新的节点。 在Safari中运行Tesseract.js（文本识别软件： http ： //tesseract.projectnaptha.com ）大约需要10秒，并立即开始输出进度。
节点（v6.9.1）（从terminal运行或通过电子运行）在CPU开始输出到控制台之前，运行CPU到100％4分钟20秒。 然后在几乎同一时间结束。
什么故障排除步骤build议？ 这是常见的节点？
只有在日志中看到的差异是Safari“在cachingeng.traineddata中find”清除和禁用caching只影响最小的时间。 已经尝试了一些.JPG和.PNG（300-600kb）的文件，但是BMP（3.7MB）却给出了17秒的快速响应 – 然后错误并没有完成。 （这是“下一个打勾”问题？）
var Tesseract = require('tesseract.js'); var image = "./images/sample.jpg"; function tesseract(){ Tesseract.recognize(image) .progress(function(message){console.log(message)}) .then(result => console.log(result.text)) } tesseract(); （编辑器强制将输出格式化为代码）
NODE console.Log
>Bash-3.2$ node JustTess.js *Waits 4+ min and Then* { status: 'loading tesseract core' } { status: 'loaded tesseract core' } { status: 'initializing tesseract', progress: 0 } pre-main prep time:108 ms { status: 'initializing tesseract', progress: 1 } { status: 'loading eng.traineddata', progress: 0 } { status: 'loading eng.traineddata', progress: 1 } { status: 'initializing api', progress: 0 } { status: 'initializing api', progress: 0.3 } { status: 'initializing api', progress: 0.6 } { status: 'initializing api', progress: 1 } { status: 'recognizing text', progress: 0 } { status: 'recognizing text', progress: 0.014285714 }...
SAFARI console.log
>[Log] – {status: "loading tesseract core"} [Log] – {status: "loaded tesseract core"} [Log] – {status: "initializing tesseract api"} [Log] pre-main prep time: 115 ms (index.js, line 10) [Log] – {status: "initialized tesseract api"} [Log] – {status: "found in cache eng.traineddata"} [Log] – {status: "loaded eng.traineddata"} [Log] – {status: "initialized with language"} [Log] – {status: "recognizing text", progress: 0} [Log] – {status: "recognizing text", progress: 0.0142}...
节点与BMP
bash-3.2$ node JustTess.js *After 17 sec* { status: 'initializing tesseract', progress: 0 } pre-main prep time: 118 ms { status: 'initializing tesseract', progress: 1 } { status: 'loading eng.traineddata', progress: 0 } { status: 'loading eng.traineddata', progress: 1 } { status: 'initializing api', progress: 0 } { status: 'initializing api', progress: 0.3 } { status: 'initializing api', progress: 0.6 } Error in pixRemoveColormap: pixs must be {1,2,4,8} bpp Error in pixGetDepth: pix not defined Error in pixGetWpl: pix not defined Error in pixCreateHeader: depth must be {1, 2, 4, 8, 16, 24, 32} Error in pixCreateNoInit: pixd not made Error in pixCreateTemplateNoInit: pixd not made Error in pixCreateTemplate: pixd not made Error in pixCopy: pixd not made { status: 'initializing api', progress: 1 } 3 3 /Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programming/GitHub/ba/node_modules/tesser act.js-core/index.js:4 function f(a){throw a;}var h=void 0,i=!0,j=null,k=!1;function aa(){return function(){}}function ba( a){return function(){return a}}var n,Module;Module||(Module=eval("(function() { try { return Tesser actCore || {} } catch(e) { return {} } })()"));var ca={},da;for(da in Module)Module.hasOwnProperty( da)&&(ca[da]=Module[da]);var ea=i,fa=!ea&&i; ^ abort(3) at Error at Error (native) at Na (/Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programming/GitHub/ba/node_mod ules/tesseract.js-core/index.js:32:26) at ka (/Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programming/GitHub/ba/node_mod ules/tesseract.js-core/index.js:507:108) at Array.JHa (/Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programming/GitHub/ba/n ode_modules/tesseract.js-core/index.js:402:25808) at xd (/Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programming/GitHub/ba/node_mod ules/tesseract.js-core/index.js:382:924) at R.TesseractCore.V.Begin (/Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programmi ng/GitHub/ba/node_modules/tesseract.js-core/index.js:511:288) at DumpLiterallyEverything (/Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programmi ng/GitHub/ba/node_modules/tesseract.js/src/common/dump.js:13:8) at /Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programming/GitHub/ba/node_modules /tesseract.js/src/common/worker.js:121:22 at /Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programming/GitHub/ba/node_modules /tesseract.js/src/common/worker.js:92:9 at /Users/brent/Library/Mobile Documents/com~apple~CloudDocs/Programming/GitHub/ba/node_modules /tesseract.js/src/node/lang.js:14:25 If this abort() is unexpected, build with -s ASSERTIONS=1 which can give more information.
我无法回答这个问题。 然而，其他的答案并没有说明问题。 查看http://www.jsbenchmarks.com/?anywhichway/lookup/master/benchmark.js/ ，了解NodeJS和浏览器如何在许多function上有显着差异的例子。 请注意，虽然本网站上的浏览器结果来自多个访问者，并且Node结果来自单个服务器，但在隔离环境中的testing显示的是相同的结果。
这个问题已经通过对Tesseract.Js软件的更新得到解决。