{"json_modified": "2016-03-28T08:24:41.678900", "uuid": "a8cfe2d9-b855-4b86-9b3d-29c4f86da3f8", "title": "preserveAlpha", "url": "/en-US/docs/Web/SVG/Attribute/preserveAlpha", "tags": ["Filters", "SVG Attribute", "SVG", "NeedsCompatTable", "NeedsExample"], "translations": [], "modified": "2014-03-24T08:27:51", "label": "preserveAlpha", "localization_tags": [], "locale": "en-US", "id": 58171, "last_edit": "2013-06-08T05:20:45", "summary": "the <code>preserveAlpha</code> attribute indicates how a <a href=\"/en-US/docs/Web/SVG/Element/feConvolveMatrix\" title=\"the feConvolveMatrix element applies a matrix convolution filter effect. A convolution combines pixels in the input image with neighboring pixels to produce a resulting image. A wide variety of imaging operations can be achieved through convolutions, including blurring, edge detection, sharpening, embossing and beveling.\"><code>&lt;feconvolvematrix&gt;</code></a> element handled alpha transparency.<br/><br/>\n  A value of <code><span class=\"attr-value\">false</span></code> indicates that the convolution matrix will apply to all channels, including the alpha channel. This is the default value.", "sections": [{"id": "Usage_context", "title": "Usage context"}, {"id": "Example", "title": "Example"}, {"id": "Elements", "title": "Elements"}], "slug": "Web/SVG/Attribute/preserveAlpha", "review_tags": []}