24 lines
855 B
HTML
24 lines
855 B
HTML
---
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layout: example.html
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title: Image Filters
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shortdesc: Apply a filter to imagery
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docs: >
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<p>Layer rendering can be manipulated in <code>prerender</code> and <code>postrender</code> event listeners.
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These listeners get an event with a reference to the Canvas rendering context.
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In this example, the <code>postrender</code> listener applies a filter to the image data.</p>
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tags: "filter, image manipulation, maptiler"
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cloak:
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- key: get_your_own_D6rA4zTHduk6KOKTXzGB
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value: Get your own API key at https://www.maptiler.com/cloud/
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---
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<div id="map" class="map"></div>
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<select id="kernel" name="kernel">
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<option>none</option>
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<option selected>sharpen</option>
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<option value="sharpenless">sharpen less</option>
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<option>blur</option>
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<option>shadow</option>
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<option>emboss</option>
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<option value="edge">edge detect</option>
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</select>
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