425 lines
28 KiB
HTML
425 lines
28 KiB
HTML
<!doctype html>
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<title>光学字符识别 (OCR) | AutoJs6 文档 - 6.3.0</title>
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<div id="column1" data-id="ocr" class="interior">
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<header>
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<h1>AutoJs6 文档 - 6.3.0</h1>
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<div id="gtoc">
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<p class="index">
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<a href="index.html" name="toc">索引</a> |
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<a href="all.html">查看全部</a>
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<hr>
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</header>
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<div id="toc">
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<h2>目录</h2>
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<ul>
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<li><span class="stability_undefined"><a href="#ocr_ocr">光学字符识别 (OCR)</a></span><ul>
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<li><span class="stability_undefined"><a href="#ocr_ocr_1">[@] ocr</a></span><ul>
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<li><span class="stability_undefined"><a href="#ocr_ocr_img_options">ocr(img, options?)</a></span></li>
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<li><span class="stability_undefined"><a href="#ocr_ocr_img_region">ocr(img, region)</a></span></li>
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<li><span class="stability_undefined"><a href="#ocr_ocr_imgpath_options">ocr(imgPath, options?)</a></span></li>
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<li><span class="stability_undefined"><a href="#ocr_ocr_imgpath_region">ocr(imgPath, region)</a></span></li>
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</ul>
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</li>
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<li><span class="stability_undefined"><a href="#ocr_m_recognizetext">[m] recognizeText</a></span><ul>
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<li><span class="stability_undefined"><a href="#ocr_recognizetext_img_options">recognizeText(img, options?)</a></span></li>
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<li><span class="stability_undefined"><a href="#ocr_recognizetext_img_region">recognizeText(img, region)</a></span></li>
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<li><span class="stability_undefined"><a href="#ocr_recognizetext_imgpath_options">recognizeText(imgPath, options?)</a></span></li>
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<li><span class="stability_undefined"><a href="#ocr_recognizetext_imgpath_region">recognizeText(imgPath, region)</a></span></li>
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</ul>
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</li>
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<li><span class="stability_undefined"><a href="#ocr_m_detect">[m] detect</a></span><ul>
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<li><span class="stability_undefined"><a href="#ocr_detect_img_options">detect(img, options?)</a></span></li>
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<li><span class="stability_undefined"><a href="#ocr_detect_img_region">detect(img, region)</a></span></li>
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<li><span class="stability_undefined"><a href="#ocr_detect_imgpath_options">detect(imgPath, options?)</a></span></li>
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<li><span class="stability_undefined"><a href="#ocr_detect_imgpath_region">detect(imgPath, region)</a></span></li>
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</ul>
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</li>
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</ul>
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</li>
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</ul>
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</div>
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<div id="apicontent">
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<h1>光学字符识别 (OCR)<span><a class="mark" href="#ocr_ocr" id="ocr_ocr">#</a></span></h1>
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<p>ocr 模块用于识别图像中的文本.</p>
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<p>AutoJs6 的 OCR 特性是基于 <a href="https://developers.google.com/ml-kit?hl=zh-cn">Google ML Kit</a> 的 <a href="https://developers.google.com/ml-kit/vision/text-recognition/android?hl=zh-cn">文字识别 API</a> 实现的.</p>
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<h2>[@] ocr<span><a class="mark" href="#ocr_ocr_1" id="ocr_ocr_1">#</a></span></h2>
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<p>ocr 可作为全局对象使用:</p>
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<pre><code class="lang-js">typeof ocr; // "function"
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typeof ocr.detect; // "function"
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typeof ocr.recognizeText; // "function"
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</code></pre>
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<h3>ocr(img, options?)<span><a class="mark" href="#ocr_ocr_img_options" id="ocr_ocr_img_options">#</a></span></h3>
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<p><strong><code>6.3.0</code></strong> <strong><code>Overload [1-2]/6</code></strong></p>
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<ul>
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<li><strong>img</strong> { <span class="type"><a href="imageWrapper.html">ImageWrapper</a></span> } - 包装图像对象</li>
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<li><strong>[ options ]</strong> { <span class="type"><a href="ocrOptionsType.html">OcrOptions</a></span> } - OCR 识别选项</li>
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<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
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</ul>
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<p>识别图像包含的所有文本, 返回文本数组.</p>
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<p><a href="#ocr_m_recognizetext">ocr.recognizeText(img, options?)</a> 的别名方法.</p>
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<pre><code class="lang-js">/* 申请屏幕截图权限. */
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images.requestScreenCapture();
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/* 截屏并获取包装图像对象. */
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let img = images.captureScreen();
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/* OCR 识别并获取结果, 结果为字符串数组. */
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let results = ocr(img);
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/* 结果过滤, 筛选出文本中可部分匹配 "app" 的结果, 如 "apple", "disappear" 等. */
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results.filter(text => text.includes('app'));
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</code></pre>
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<h3>ocr(img, region)<span><a class="mark" href="#ocr_ocr_img_region" id="ocr_ocr_img_region">#</a></span></h3>
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<p><strong><code>6.3.0</code></strong> <strong><code>Overload 3/6</code></strong></p>
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<ul>
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<li><strong>img</strong> { <span class="type"><a href="imageWrapper.html">ImageWrapper</a></span> } - 包装图像对象</li>
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<li><strong>region</strong> { <span class="type"><a href="omniTypes.html#omnitypes_omniregion">OmniRegion</a></span> } - OCR 识别区域</li>
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<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
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</ul>
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<p>识别指定区域内图像包含的所有文本, 返回文本数组.</p>
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<p><a href="#ocr__ocr">ocr(img, { <span class="type">region: region</span> })</a> 的便捷方法.</p>
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<p><a href="#ocr_m_recognizetext">ocr.recognizeText(img, region)</a> 的别名方法.</p>
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<pre><code class="lang-js">/* 申请屏幕截图权限. */
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images.requestScreenCapture();
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/* 截屏并获取包装图像对象. */
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let img = images.captureScreen();
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/* 在区域 [ 0, 0, 100, 150 ] 内进行 OCR 识别并获取结果, 结果为字符串数组. */
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let results = ocr(img, [ 0, 0, 100, 150 ]);
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/* 结果过滤, 筛选出文本中可部分匹配 "app" 的结果, 如 "apple", "disappear" 等. */
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results.filter(text => text.includes('app'));
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</code></pre>
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<p>关于 OCR 区域参数 <code>region</code> 的更多用法, 参阅 <a href="ocrOptionsType.html#ocroptionstype_p_region">OcrOptions#region</a> 小节.</p>
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<h3>ocr(imgPath, options?)<span><a class="mark" href="#ocr_ocr_imgpath_options" id="ocr_ocr_imgpath_options">#</a></span></h3>
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<p><strong><code>6.3.0</code></strong> <strong><code>Overload [4-5]/6</code></strong></p>
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<ul>
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<li><strong>imgPath</strong> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a></span> } - 图像路径</li>
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<li><strong>[ options ]</strong> { <span class="type"><a href="ocrOptionsType.html">OcrOptions</a></span> } - OCR 识别选项</li>
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<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
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</ul>
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<p>识别指定路径对应图像包含的所有文本, 返回文本数组.</p>
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<p>当指定路径无法解析为包装图像对象时, 将抛出 <code>TypeError</code> 异常.</p>
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<p><a href="#ocr_m_recognizetext">ocr.recognizeText(imgPath, options?)</a> 的别名方法.</p>
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<pre><code class="lang-js">ocr('./picture.jpg'); /* 获取本地图像文件中的所有文本. */
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</code></pre>
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<h3>ocr(imgPath, region)<span><a class="mark" href="#ocr_ocr_imgpath_region" id="ocr_ocr_imgpath_region">#</a></span></h3>
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<p><strong><code>6.3.0</code></strong> <strong><code>Overload 6/6</code></strong></p>
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<ul>
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<li><strong>imgPath</strong> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a></span> } - 图像路径</li>
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<li><strong>region</strong> { <span class="type"><a href="omniTypes.html#omnitypes_omniregion">OmniRegion</a></span> } - OCR 识别区域</li>
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<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
|
|
</ul>
|
|
<p>识别指定路径对应图像在指定区域内包含的所有文本, 返回文本数组.</p>
|
|
<p>当指定路径无法解析为包装图像对象时, 将抛出 <code>TypeError</code> 异常.</p>
|
|
<p><a href="#ocr__ocr">ocr(imgPath, { <span class="type">region: region</span> })</a> 的便捷方法.</p>
|
|
<p><a href="#ocr_m_recognizetext">ocr.recognizeText(imgPath, region)</a> 的别名方法.</p>
|
|
<pre><code class="lang-js">/* 获取本地图像文件在区域 [ 0, 0, 100, 150 ] 内的所有文本. */
|
|
ocr('./picture.jpg', [ 0, 0, 100, 150 ]);
|
|
</code></pre>
|
|
<p>关于 OCR 区域参数 <code>region</code> 的更多用法, 参阅 <a href="ocrOptionsType.html#ocroptionstype_p_region">OcrOptions#region</a> 小节.</p>
|
|
<h2>[m] recognizeText<span><a class="mark" href="#ocr_m_recognizetext" id="ocr_m_recognizetext">#</a></span></h2>
|
|
<h3>recognizeText(img, options?)<span><a class="mark" href="#ocr_recognizetext_img_options" id="ocr_recognizetext_img_options">#</a></span></h3>
|
|
<p><strong><code>6.3.0</code></strong> <strong><code>Overload [1-2]/6</code></strong></p>
|
|
<ul>
|
|
<li><strong>img</strong> { <span class="type"><a href="imageWrapper.html">ImageWrapper</a></span> } - 包装图像对象</li>
|
|
<li><strong>[ options ]</strong> { <span class="type"><a href="ocrOptionsType.html">OcrOptions</a></span> } - OCR 识别选项</li>
|
|
<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
|
|
</ul>
|
|
<p>识别图像包含的所有文本, 返回文本数组.</p>
|
|
<p><code>ocr.recognizeText(img, options?)</code> 与 <code>ocr(img, options?)</code> 等价.</p>
|
|
<pre><code class="lang-js">images.requestScreenCapture(); /* 申请屏幕截图权限. */
|
|
let img = images.captureScreen(); /* 截屏并获取包装图像对象. */
|
|
ocr.recognizeText(img).filter(text => text.includes('app')); /* 过滤结果. */
|
|
</code></pre>
|
|
<h3>recognizeText(img, region)<span><a class="mark" href="#ocr_recognizetext_img_region" id="ocr_recognizetext_img_region">#</a></span></h3>
|
|
<p><strong><code>6.3.0</code></strong> <strong><code>Overload 3/6</code></strong></p>
|
|
<ul>
|
|
<li><strong>img</strong> { <span class="type"><a href="imageWrapper.html">ImageWrapper</a></span> } - 包装图像对象</li>
|
|
<li><strong>region</strong> { <span class="type"><a href="omniTypes.html#omnitypes_omniregion">OmniRegion</a></span> } - OCR 识别区域</li>
|
|
<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
|
|
</ul>
|
|
<p>识别指定区域内图像包含的所有文本, 返回文本数组.</p>
|
|
<p><a href="#ocr_m_recognizeText">ocr.recognizeText(img, { <span class="type">region: region</span> })</a> 的便捷方法.</p>
|
|
<p><code>ocr.recognizeText(img, region)</code> 与 <code>ocr(img, region)</code> 等价.</p>
|
|
<pre><code class="lang-js">images.requestScreenCapture(); /* 申请屏幕截图权限. */
|
|
let img = images.captureScreen(); /* 截屏并获取包装图像对象. */
|
|
ocr.recognizeText(img, [ 0, 0, 100, 150 ]).filter(text => text.includes('app')); /* 过滤结果. */
|
|
</code></pre>
|
|
<p>关于 OCR 区域参数 <code>region</code> 的更多用法, 参阅 <a href="ocrOptionsType.html#ocroptionstype_p_region">OcrOptions#region</a> 小节.</p>
|
|
<h3>recognizeText(imgPath, options?)<span><a class="mark" href="#ocr_recognizetext_imgpath_options" id="ocr_recognizetext_imgpath_options">#</a></span></h3>
|
|
<p><strong><code>6.3.0</code></strong> <strong><code>Overload [4-5]/6</code></strong></p>
|
|
<ul>
|
|
<li><strong>imgPath</strong> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a></span> } - 图像路径</li>
|
|
<li><strong>[ options ]</strong> { <span class="type"><a href="ocrOptionsType.html">OcrOptions</a></span> } - OCR 识别选项</li>
|
|
<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
|
|
</ul>
|
|
<p>识别指定路径对应图像包含的所有文本, 返回文本数组.</p>
|
|
<p>当指定路径无法解析为包装图像对象时, 将抛出 <code>TypeError</code> 异常.</p>
|
|
<p><code>ocr.recognizeText(imgPath, options?)</code> 与 <code>ocr(imgPath, options?)</code> 等价.</p>
|
|
<pre><code class="lang-js">ocr.recognizeText('./picture.jpg'); /* 获取本地图像文件中的所有文本. */
|
|
</code></pre>
|
|
<h3>recognizeText(imgPath, region)<span><a class="mark" href="#ocr_recognizetext_imgpath_region" id="ocr_recognizetext_imgpath_region">#</a></span></h3>
|
|
<p><strong><code>6.3.0</code></strong> <strong><code>Overload 6/6</code></strong></p>
|
|
<ul>
|
|
<li><strong>imgPath</strong> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a></span> } - 图像路径</li>
|
|
<li><strong>region</strong> { <span class="type"><a href="omniTypes.html#omnitypes_omniregion">OmniRegion</a></span> } - OCR 识别区域</li>
|
|
<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
|
|
</ul>
|
|
<p>识别指定路径对应图像在指定区域内包含的所有文本, 返回文本数组.</p>
|
|
<p>当指定路径无法解析为包装图像对象时, 将抛出 <code>TypeError</code> 异常.</p>
|
|
<p><a href="#ocr_m_recognizetext">ocr.recognizeText(imgPath, { <span class="type">region: region</span> })</a> 的便捷方法.</p>
|
|
<p><code>ocr.recognizeText(imgPath, region)</code> 与 <code>ocr(imgPath, region)</code> 等价.</p>
|
|
<pre><code class="lang-js">/* 获取本地图像文件在区域 [ 0, 0, 100, 150 ] 内的所有文本. */
|
|
ocr.recognizeText('./picture.jpg', [ 0, 0, 100, 150 ]);
|
|
</code></pre>
|
|
<p>关于 OCR 区域参数 <code>region</code> 的更多用法, 参阅 <a href="ocrOptionsType.html#ocroptionstype_p_region">OcrOptions#region</a> 小节.</p>
|
|
<h2>[m] detect<span><a class="mark" href="#ocr_m_detect" id="ocr_m_detect">#</a></span></h2>
|
|
<h3>detect(img, options?)<span><a class="mark" href="#ocr_detect_img_options" id="ocr_detect_img_options">#</a></span></h3>
|
|
<p><strong><code>6.3.0</code></strong> <strong><code>Overload [1-2]/6</code></strong></p>
|
|
<ul>
|
|
<li><strong>img</strong> { <span class="type"><a href="imageWrapper.html">ImageWrapper</a></span> } - 包装图像对象</li>
|
|
<li><strong>[ options ]</strong> { <span class="type"><a href="ocrOptionsType.html">OcrOptions</a></span> } - OCR 识别选项</li>
|
|
<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_ocrresult">OcrResult</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
|
|
</ul>
|
|
<p>识别图像包含的所有文本, 返回 <a href="dataTypes.html#datatypes_ocrresult">OcrResult</a> 数组.</p>
|
|
<pre><code class="lang-js">/* 申请屏幕截图权限. */
|
|
images.requestScreenCapture();
|
|
|
|
/* 截屏并获取包装图像对象. */
|
|
let img = images.captureScreen();
|
|
|
|
/* 获取本地图像文件中的所有识别结果. */
|
|
let result = ocr.detect(img);
|
|
|
|
/* 筛选置信度高于 0.8 的结果. */
|
|
result.filter(o => o.confidence >= 0.8);
|
|
</code></pre>
|
|
<h3>detect(img, region)<span><a class="mark" href="#ocr_detect_img_region" id="ocr_detect_img_region">#</a></span></h3>
|
|
<p><strong><code>6.3.0</code></strong> <strong><code>Overload 3/6</code></strong></p>
|
|
<ul>
|
|
<li><strong>img</strong> { <span class="type"><a href="imageWrapper.html">ImageWrapper</a></span> } - 包装图像对象</li>
|
|
<li><strong>region</strong> { <span class="type"><a href="omniTypes.html#omnitypes_omniregion">OmniRegion</a></span> } - OCR 识别区域</li>
|
|
<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_ocrresult">OcrResult</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
|
|
</ul>
|
|
<p>识别指定路径对应图像在指定区域内包含的所有文本, 返回 <a href="dataTypes.html#datatypes_ocrresult">OcrResult</a> 数组.</p>
|
|
<p><a href="#ocr_m_detect">ocr.detect(img, { <span class="type">region: region</span> })</a> 的便捷方法.</p>
|
|
<pre><code class="lang-js">/* 申请屏幕截图权限. */
|
|
images.requestScreenCapture();
|
|
|
|
/* 截屏并获取包装图像对象. */
|
|
let img = images.captureScreen();
|
|
|
|
/* 获取本地图像文件在区域 [ 0, 0, 100, 150 ] 内的所有识别结果. */
|
|
let result = ocr.detect(img, [ 0, 0, 100, 150 ]);
|
|
|
|
/* 筛选置信度高于 0.8 的结果. */
|
|
result.filter(o => o.confidence >= 0.8);
|
|
</code></pre>
|
|
<p>关于 OCR 区域参数 <code>region</code> 的更多用法, 参阅 <a href="ocrOptionsType.html#ocroptionstype_p_region">OcrOptions#region</a> 小节.</p>
|
|
<h3>detect(imgPath, options?)<span><a class="mark" href="#ocr_detect_imgpath_options" id="ocr_detect_imgpath_options">#</a></span></h3>
|
|
<p><strong><code>6.3.0</code></strong> <strong><code>Overload [4-5]/6</code></strong></p>
|
|
<ul>
|
|
<li><strong>imgPath</strong> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a></span> } - 图像路径</li>
|
|
<li><strong>[ options ]</strong> { <span class="type"><a href="ocrOptionsType.html">OcrOptions</a></span> } - OCR 识别选项</li>
|
|
<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_ocrresult">OcrResult</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
|
|
</ul>
|
|
<p>识别指定路径对应图像包含的所有文本, 返回 <a href="dataTypes.html#datatypes_ocrresult">OcrResult</a> 数组.</p>
|
|
<p>当指定路径无法解析为包装图像对象时, 将抛出 <code>TypeError</code> 异常.</p>
|
|
<pre><code class="lang-js">let result = ocr.detect('./picture.jpg'); /* 获取本地图像文件中的所有识别结果. */
|
|
result.filter(o => o.confidence >= 0.8); /* 筛选置信度高于 0.8 的结果. */
|
|
</code></pre>
|
|
<h3>detect(imgPath, region)<span><a class="mark" href="#ocr_detect_imgpath_region" id="ocr_detect_imgpath_region">#</a></span></h3>
|
|
<p><strong><code>6.3.0</code></strong> <strong><code>Overload 6/6</code></strong></p>
|
|
<ul>
|
|
<li><strong>imgPath</strong> { <span class="type"><a href="dataTypes.html#datatypes_string">string</a></span> } - 图像路径</li>
|
|
<li><strong>region</strong> { <span class="type"><a href="omniTypes.html#omnitypes_omniregion">OmniRegion</a></span> } - OCR 识别区域</li>
|
|
<li><ins><strong>returns</strong></ins> { <span class="type"><a href="dataTypes.html#datatypes_ocrresult">OcrResult</a><a href="dataTypes.html#datatypes_array">[]</a></span> }</li>
|
|
</ul>
|
|
<p>识别指定路径对应图像在指定区域内包含的所有文本, 返回 <a href="dataTypes.html#datatypes_ocrresult">OcrResult</a> 数组.</p>
|
|
<p>当指定路径无法解析为包装图像对象时, 将抛出 <code>TypeError</code> 异常.</p>
|
|
<p><a href="#ocr_m_detect">ocr.detect(imgPath, { <span class="type">region: region</span> })</a> 的便捷方法.</p>
|
|
<pre><code class="lang-js">/* 获取本地图像文件在区域 [ 0, 0, 100, 150 ] 内的所有识别结果. */
|
|
let result = ocr.detect('./picture.jpg', [ 0, 0, 100, 150 ]);
|
|
|
|
/* 筛选置信度高于 0.8 的结果. */
|
|
result.filter(o => o.confidence >= 0.8);
|
|
</code></pre>
|
|
<p>关于 OCR 区域参数 <code>region</code> 的更多用法, 参阅 <a href="ocrOptionsType.html#ocroptionstype_p_region">OcrOptions#region</a> 小节.</p>
|
|
|
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