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Scrawl-canvas v8 - Filters test 018

Parameters for: emboss filter

Where red represents the background color -
only shows through where pixels have been removed by the filter

To change image, drag-and-drop an image file over the canvas

Angle
Strength
Use natural grayscale
Smoothing
Clamp
Post-process results
Tolerance
Keep changed areas
Opacity
Memoize filter
Screen capture image of the demo canvas

To note: Javascript is not running in this browser environment. The canvas element is ignored; instead a placeholder image displays where the canvas would have appeared.

Test purpose

Known issue - runs very slowly in Webkit browsers

Touch test: not required

Annotated code