Line Overlay (Repository Composition) in Other, Filter
Creates a sketch that outlines the edges of an image in black, leaving the non-outlined portions of the image transparent. The result has alpha and is rendered in black, so it won’t look like much until you render it over another image using source over compositing.
Note that the image produced by this filter may have infinite dimensions. If this is the case, since Quartz Composer doesn’t know how to render such images, you will need to convert it to finite dimensions before rendering it – typically using the Image Crop patch.
Core Image filters might not produce any image if any of their image inputs are undefined. Be also aware that they expect coordinates expressed in image pixels and not in Quartz Composer units.
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Input Attributes
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Output Attributes
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Protocols
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