QuickTime 3 Reference

Edge Detection Filter (`edge')

This effect applies an edge detection convolution to a single source. The performance of the edge detection is determined by the convolution kernel. This is a matrix of values applied to each pixel of the source to produce the resulting image.

Example:

This effect takes a maximum of one source, and has two parameters.

Parameters

Name	Code	Type	Description
Edge Thickness	`ksiz'	enum	The size of the kernel to apply. This value must be one of 3, 5, 7, 9, 11, 13 or 15. Larger kernels will produce thicker edges in the resulting image.
Colorize	`colz'	BitField	If this parameter is set to true, the edges produces are assigned color, based on the color of the source pixels around them. Otherwise, edges are rendered as light grey against a dark grey background.