https://leafcxy.github.io/tags/orc/Recent content in Orc on LeafCxy's BlogHugozh-cnMon, 21 Jul 2025 09:34:25 +0000https://leafcxy.github.io/posts/2025-07-21-2/Mon, 21 Jul 2025 09:34:25 +0000https://leafcxy.github.io/posts/2025-07-21-2/<h2 id="怎么开始使用">怎么开始使用？</h2> <ul> <li>Q:这个开源库要怎么开始使用？https://github.com/tesseract-ocr/tesseract</li> </ul> <!-- more --> <ul> <li>A:要开始使用Tesseract OCR开源库，您需要经过以下几个步骤：</li> </ul> <ol> <li>下载与安装Tesseract <ul> <li>访问Tesseract的GitHub页面: <a href="https://github.com/tesseract-ocr/tesseract">https://github.com/tesseract-ocr/tesseract</a></li> <li>根据您的操作系统选择合适的安装方法。对于Windows用户，您可以直接下载预编译的可执行文件，通常推荐从UB Mannheim的发布页面下载稳定版本：Tesseract Releases</li> </ul> </li> <li>设置环境变量 <ul> <li>添加Tesseract可执行文件的路径到系统的PATH环境变量中，以便在命令行任何位置调用tesseract命令。</li> <li>同样，需要设置TESSDATA_PREFIX环境变量指向包含tessdata文件夹的路径，该文件夹内存储了语言数据包</li> </ul> </li> <li>安装语言数据包 <ul> <li>Tesseract需要相应的语言数据包才能进行识别。您可以从这里下载所需的语言包（.traineddata文件）。</li> <li>将下载的.traineddata文件放置到&lt;TESSDATA_PREFIX&gt;/tessdata目录下。例如，对于英文识别，您需要eng.traineddata。</li> </ul> </li> <li>测试安装 <ul> <li>打开命令提示符或终端，输入 tesseract &ndash;version 来确认Tesseract已成功安装及其版本信息。</li> <li>运行 tesseract &ndash;list-langs 来查看已安装的语言包列表。</li> </ul> </li> <li>使用Tesseract进行识别 <ul> <li>基本命令格式为：tesseract &lt;input_image&gt; &lt;output_text&gt; [-l <language>] &lt;input_image&gt; 是您要识别的图片文件路径。 &lt;output_text&gt; 是输出文本文件的名称。 -l <language> 是指定识别的语言，默认为英文。</li> </ul> </li> <li>在C#项目中集成Tesseract 要在C#项目中使用Tesseract，您可以使用第三方封装库，如Tesseract.SPI或Tesseract。首先，在Visual Studio中打开您的项目，然后通过NuGet包管理器安装这些库之一。 Install-Package Tesseract -Version 4.1.1 接着，按照前面提到的C#示例代码来调用Tesseract进行OCR识别。</li> </ol> <p>通过以上步骤，您就可以开始在您的项目中使用Tesseract OCR进行文字识别了。记得根据实际需求调整配置以优化识别效果。</p> <h2 id="test">test</h2> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span>D:<span style="color:#ae81ff">\T</span>esseract-OCR&gt;tesseract.exe --version </span></span><span style="display:flex;"><span>tesseract v5.4.0.20240606 </span></span><span style="display:flex;"><span> leptonica-1.84.1 </span></span><span style="display:flex;"><span> libgif 5.2.1 : libjpeg 8d <span style="color:#f92672">(</span>libjpeg-turbo 3.0.1<span style="color:#f92672">)</span> : libpng 1.6.43 : libtiff 4.6.0 : zlib 1.3 : libwebp 1.4.0 : libopenjp2 2.5.2 </span></span><span style="display:flex;"><span> Found AVX512BW </span></span><span style="display:flex;"><span> Found AVX512F </span></span><span style="display:flex;"><span> Found AVX512VNNI </span></span><span style="display:flex;"><span> Found AVX2 </span></span><span style="display:flex;"><span> Found AVX </span></span><span style="display:flex;"><span> Found FMA </span></span><span style="display:flex;"><span> Found SSE4.1 </span></span><span style="display:flex;"><span> Found libarchive 3.7.4 zlib/1.3.1 liblzma/5.6.1 bz2lib/1.0.8 liblz4/1.9.4 libzstd/1.5.6 </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span>D:<span style="color:#ae81ff">\T</span>esseract-OCR&gt;tesseract --version </span></span><span style="display:flex;"><span>tesseract v5.4.0.20240606 </span></span><span style="display:flex;"><span> leptonica-1.84.1 </span></span><span style="display:flex;"><span> libgif 5.2.1 : libjpeg 8d <span style="color:#f92672">(</span>libjpeg-turbo 3.0.1<span style="color:#f92672">)</span> : libpng 1.6.43 : libtiff 4.6.0 : zlib 1.3 : libwebp 1.4.0 : libopenjp2 2.5.2 </span></span><span style="display:flex;"><span> Found AVX512BW </span></span><span style="display:flex;"><span> Found AVX512F </span></span><span style="display:flex;"><span> Found AVX512VNNI </span></span><span style="display:flex;"><span> Found AVX2 </span></span><span style="display:flex;"><span> Found AVX </span></span><span style="display:flex;"><span> Found FMA </span></span><span style="display:flex;"><span> Found SSE4.1 </span></span><span style="display:flex;"><span> Found libarchive 3.7.4 zlib/1.3.1 liblzma/5.6.1 bz2lib/1.0.8 liblz4/1.9.4 libzstd/1.5.6 </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span>D:<span style="color:#ae81ff">\T</span>esseract-OCR&gt;tesseract --list-langs </span></span><span style="display:flex;"><span>List of available languages in <span style="color:#e6db74">&#34;D:\Tesseract-OCR/tessdata/&#34;</span> <span style="color:#f92672">(</span>7<span style="color:#f92672">)</span>: </span></span><span style="display:flex;"><span>chi_sim </span></span><span style="display:flex;"><span>chi_sim_vert </span></span><span style="display:flex;"><span>chi_tra </span></span><span style="display:flex;"><span>chi_tra_vert </span></span><span style="display:flex;"><span>eng </span></span><span style="display:flex;"><span>enm </span></span><span style="display:flex;"><span>osd </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span>D:<span style="color:#ae81ff">\T</span>esseract-OCR&gt;tesseract D:<span style="color:#ae81ff">\T</span>esseract-OCR<span style="color:#ae81ff">\i</span>nput<span style="color:#ae81ff">\t</span>est.png test.txt -l eng </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span>D:<span style="color:#ae81ff">\T</span>esseract-OCR&gt;tesseract D:<span style="color:#ae81ff">\T</span>esseract-OCR<span style="color:#ae81ff">\i</span>nput<span style="color:#ae81ff">\t</span>estforchs.png D:<span style="color:#ae81ff">\T</span>esseract-OCR<span style="color:#ae81ff">\o</span>utput<span style="color:#ae81ff">\t</span>estforchs -l chi_sim </span></span></code></pre></div>