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- <!DOCTYPE html>
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- <title>JSDoc: Module: StackBlur</title>
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- <script src="scripts/prettify/lang-css.js"> </script>
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- <h1 class="page-title">Module: StackBlur</h1>
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- <div class="description"><p>StackBlur - a fast almost Gaussian Blur For Canvas</p>
- <p>In case you find this class useful - especially in commercial projects -
- I am not totally unhappy for a small donation to my PayPal account
- <a href="mailto:mario@quasimondo.de">mario@quasimondo.de</a></p>
- <p>Or support me on flattr:
- <a href="https://flattr.com/thing/72791/StackBlur-a-fast-almost-Gaussian-Blur-Effect-for-CanvasJavascript">https://flattr.com/thing/72791/StackBlur-a-fast-almost-Gaussian-Blur-Effect-for-CanvasJavascript</a></p></div>
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- <dt class="tag-author">Author:</dt>
- <dd class="tag-author">
- <ul>
- <li>Mario Klingemann
- Contact: mario@quasimondo.com
- Website: <a href="http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html">http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html</a>
- Twitter: @quasimondo</li>
- </ul>
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- <dt class="tag-copyright">Copyright:</dt>
- <dd class="tag-copyright"><ul class="dummy"><li>(c) 2010 Mario Klingemann
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- Permission is hereby granted, free of charge, to any person
- obtaining a copy of this software and associated documentation
- files (the "Software"), to deal in the Software without
- restriction, including without limitation the rights to use,
- copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the
- Software is furnished to do so, subject to the following
- conditions:
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- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
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- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- OTHER DEALINGS IN THE SOFTWARE.</li></ul></dd>
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- <dt class="tag-source">Source:</dt>
- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line1">line 1</a>
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- <h3 class="subsection-title">Classes</h3>
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- <dt><a href="module-StackBlur.BlurStack.html">BlurStack</a></dt>
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- <h4 class="name" id=".canvasRGB"><span class="type-signature">(static) </span>canvasRGB<span class="signature">()</span><span class="type-signature"></span></h4>
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- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line640">line 640</a>
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- <dd class="tag-see">
- <ul>
- <li><a href="module-StackBlur.html#~processCanvasRGB">module:StackBlur~processCanvasRGB</a></li>
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- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line635">line 635</a>
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- <dd class="tag-see">
- <ul>
- <li><a href="module-StackBlur.html#~processCanvasRGBA">module:StackBlur~processCanvasRGBA</a></li>
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- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line630">line 630</a>
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- <li><a href="module-StackBlur.html#~processImage">module:StackBlur~processImage</a></li>
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- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line650">line 650</a>
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- <li><a href="module-StackBlur.html#~processImageDataRGB">module:StackBlur~processImageDataRGB</a></li>
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- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line645">line 645</a>
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- <li><a href="module-StackBlur.html#~processImageDataRGBA">module:StackBlur~processImageDataRGBA</a></li>
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- <dt class="tag-source">Source:</dt>
- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line128">line 128</a>
- </li></ul></dd>
-
-
-
-
-
-
-
- </dl>
-
-
-
-
-
-
-
-
-
-
-
- <h5>Throws:</h5>
-
-
-
- <div class="param-desc">
-
-
- <span class="param-type">Error</span>
- |
-
- <span class="param-type">TypeError</span>
-
-
-
- </div>
-
-
-
-
-
- <h5>Returns:</h5>
-
-
- <div class="param-desc">
- <p>See <a href="https://html.spec.whatwg.org/multipage/canvas.html#imagedata">https://html.spec.whatwg.org/multipage/canvas.html#imagedata</a></p>
- </div>
-
-
-
- <dl>
- <dt>
- Type
- </dt>
- <dd>
-
- <span class="param-type">ImageData</span>
-
-
- </dd>
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h4 class="name" id="~processCanvasRGB"><span class="type-signature">(inner) </span>processCanvasRGB<span class="signature">(canvas, topX, topY, width, height, radius)</span><span class="type-signature"> → {undefined}</span></h4>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Parameters:</h5>
-
-
- <table class="params">
- <thead>
- <tr>
-
- <th>Name</th>
-
-
- <th>Type</th>
-
-
-
-
-
- <th class="last">Description</th>
- </tr>
- </thead>
-
- <tbody>
-
-
- <tr>
-
- <td class="name"><code>canvas</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">HTMLCanvasElement</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>topX</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>topY</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>width</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>height</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>radius</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Float</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
- </tbody>
- </table>
-
-
-
-
-
-
- <dl class="details">
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <dt class="tag-source">Source:</dt>
- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line406">line 406</a>
- </li></ul></dd>
-
-
-
-
-
-
-
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Returns:</h5>
-
-
-
-
- <dl>
- <dt>
- Type
- </dt>
- <dd>
-
- <span class="param-type">undefined</span>
-
-
- </dd>
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h4 class="name" id="~processCanvasRGBA"><span class="type-signature">(inner) </span>processCanvasRGBA<span class="signature">(canvas, topX, topY, width, height, radius)</span><span class="type-signature"> → {undefined}</span></h4>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Parameters:</h5>
-
-
- <table class="params">
- <thead>
- <tr>
-
- <th>Name</th>
-
-
- <th>Type</th>
-
-
-
-
-
- <th class="last">Description</th>
- </tr>
- </thead>
-
- <tbody>
-
-
- <tr>
-
- <td class="name"><code>canvas</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">HTMLCanvasElement</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>topX</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>topY</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>width</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>height</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>radius</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Float</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
- </tbody>
- </table>
-
-
-
-
-
-
- <dl class="details">
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <dt class="tag-source">Source:</dt>
- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line154">line 154</a>
- </li></ul></dd>
-
-
-
-
-
-
-
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Returns:</h5>
-
-
-
-
- <dl>
- <dt>
- Type
- </dt>
- <dd>
-
- <span class="param-type">undefined</span>
-
-
- </dd>
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h4 class="name" id="~processImage"><span class="type-signature">(inner) </span>processImage<span class="signature">(img, canvas, radius, blurAlphaChannel)</span><span class="type-signature"> → {undefined}</span></h4>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Parameters:</h5>
-
-
- <table class="params">
- <thead>
- <tr>
-
- <th>Name</th>
-
-
- <th>Type</th>
-
-
-
-
-
- <th class="last">Description</th>
- </tr>
- </thead>
-
- <tbody>
-
-
- <tr>
-
- <td class="name"><code>img</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">string</span>
- |
-
- <span class="param-type">HTMLImageElement</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>canvas</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">string</span>
- |
-
- <span class="param-type">HTMLCanvasElement</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>radius</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Float</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>blurAlphaChannel</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">boolean</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
- </tbody>
- </table>
-
-
-
-
-
-
- <dl class="details">
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <dt class="tag-source">Source:</dt>
- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line84">line 84</a>
- </li></ul></dd>
-
-
-
-
-
-
-
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Returns:</h5>
-
-
-
-
- <dl>
- <dt>
- Type
- </dt>
- <dd>
-
- <span class="param-type">undefined</span>
-
-
- </dd>
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h4 class="name" id="~processImageDataRGB"><span class="type-signature">(inner) </span>processImageDataRGB<span class="signature">(imageData, topX, topY, width, height, radius)</span><span class="type-signature"> → {ImageData}</span></h4>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Parameters:</h5>
-
-
- <table class="params">
- <thead>
- <tr>
-
- <th>Name</th>
-
-
- <th>Type</th>
-
-
-
-
-
- <th class="last">Description</th>
- </tr>
- </thead>
-
- <tbody>
-
-
- <tr>
-
- <td class="name"><code>imageData</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">ImageData</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>topX</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>topY</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>width</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>height</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>radius</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Float</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
- </tbody>
- </table>
-
-
-
-
-
-
- <dl class="details">
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <dt class="tag-source">Source:</dt>
- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line425">line 425</a>
- </li></ul></dd>
-
-
-
-
-
-
-
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Returns:</h5>
-
-
-
-
- <dl>
- <dt>
- Type
- </dt>
- <dd>
-
- <span class="param-type">ImageData</span>
-
-
- </dd>
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h4 class="name" id="~processImageDataRGBA"><span class="type-signature">(inner) </span>processImageDataRGBA<span class="signature">(imageData, topX, topY, width, height, radius)</span><span class="type-signature"> → {ImageData}</span></h4>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Parameters:</h5>
-
-
- <table class="params">
- <thead>
- <tr>
-
- <th>Name</th>
-
-
- <th>Type</th>
-
-
-
-
-
- <th class="last">Description</th>
- </tr>
- </thead>
-
- <tbody>
-
-
- <tr>
-
- <td class="name"><code>imageData</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">ImageData</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>topX</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>topY</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>width</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>height</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Integer</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
-
- <tr>
-
- <td class="name"><code>radius</code></td>
-
-
- <td class="type">
-
-
- <span class="param-type">Float</span>
-
-
-
- </td>
-
-
-
-
-
- <td class="description last"></td>
- </tr>
-
-
- </tbody>
- </table>
-
-
-
-
-
-
- <dl class="details">
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- <dt class="tag-source">Source:</dt>
- <dd class="tag-source"><ul class="dummy"><li>
- <a href="stackblur.js.html">stackblur.js</a>, <a href="stackblur.js.html#line174">line 174</a>
- </li></ul></dd>
-
-
-
-
-
-
-
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- <h5>Returns:</h5>
-
-
-
-
- <dl>
- <dt>
- Type
- </dt>
- <dd>
-
- <span class="param-type">ImageData</span>
-
-
- </dd>
- </dl>
-
-
-
-
-
-
-
-
-
-
-
-
-
- </article>
-
- </section>
-
-
-
-
- </div>
-
- <nav>
- <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-StackBlur.html">StackBlur</a></li></ul><h3>Classes</h3><ul><li><a href="module-StackBlur.BlurStack.html">BlurStack</a></li></ul>
- </nav>
-
- <br class="clear">
-
- <footer>
- Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.5.5</a> on Thu Dec 13 2018 09:27:19 GMT+0800 (China Standard Time)
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