{"json_modified": "2016-07-02T13:03:40.927900", "uuid": "3ee29ec7-9e1a-46e0-b929-c71ef38c63c2", "title": "CanvasRenderingContext2D.getImageData()", "url": "/en-US/docs/Web/API/CanvasRenderingContext2D/getImageData", "tags": ["Canvas", "API", "Reference", "CanvasRenderingContext2D", "Method"], "translations": [{"uuid": "99d4256d-d3b2-43d0-af00-7051e1de126b", "title": "CanvasRenderingContext2D.getImageData()", "url": "/zh-CN/docs/Web/API/CanvasRenderingContext2D/getImageData", "tags": [], "summary": "<code><strong>CanvasRenderingContext2D</strong></code><strong><code>.getImageData()</code></strong> \u8fd4\u56de\u4e00\u4e2a<a href=\"/zh-CN/docs/Web/API/ImageData\" title=\"&#x5728; &lt;canvas&gt; &#x5143;&#x7D20;&#x4E0A;&#x4F7F;&#x7528;. &#x7531; CanvasRenderingContext2D&#x5BF9;&#x8C61;&#x7684;createImageData&#x548C;getImageData&#x65B9;&#x6CD5;&#x8FD4;&#x56DE;(&#x4E5F;&#x53EF;&#x4F5C;&#x4E3A;putImageData&#x65B9;&#x6CD5;&#x7684;&#x7B2C;&#x4E00;&#x4E2A;&#x53C2;&#x6570;)\"><code>ImageData</code></a>\u5bf9\u8c61\uff0c\u7528\u6765\u63cf\u8ff0canvas\u533a\u57df\u9690\u542b\u7684\u50cf\u7d20\u6570\u636e\uff0c\u8fd9\u4e2a\u533a\u57df\u901a\u8fc7\u77e9\u5f62\u8868\u793a\uff0c\u8d77\u59cb\u70b9\u4e3a<em>(sx, sy)\u3001</em>\u5bbd\u4e3a<em>sw\u3001</em>\u9ad8\u4e3a<em>sh\u3002</em>", "localization_tags": [], "locale": "zh-CN", "last_edit": "2015-06-08T01:06:06", "review_tags": []}], "modified": "2016-07-02T13:03:40", "label": "CanvasRenderingContext2D.getImageData()", "localization_tags": [], "locale": "en-US", "id": 130669, "last_edit": "2015-11-13T03:53:11", "summary": "The <code><strong>CanvasRenderingContext2D</strong></code><strong><code>.getImageData()</code></strong> method of the Canvas 2D API returns an <a href=\"/en-US/docs/Web/API/ImageData\" title=\"The ImageData interface represents the underlying pixel data of an area of a &lt;canvas&gt; element. It is created using the ImageData() constructor or creator methods on the CanvasRenderingContext2D object associated with a canvas: createImageData() and getImageData(). It can also be used to set a part of the canvas by using putImageData().\"><code>ImageData</code></a> object representing the underlying pixel data for the area of the canvas denoted by the rectangle which starts at <em>(sx, sy)</em> and has an <em>sw</em> width and <em>sh</em> height.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Parameters", "title": "Parameters"}, {"id": "Return_value", "title": "Return value"}, {"id": "Errors_thrown", "title": "Errors thrown"}, {"id": "Examples", "title": "Examples"}, {"id": "Using_the_getImageData_method", "title": "Using the "}, {"id": "HTML", "title": "HTML"}, {"id": "JavaScript", "title": "JavaScript"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/CanvasRenderingContext2D/getImageData", "review_tags": []}