Document Revision History

This table describes the changes to Image Unit Tutorial.

Date	Notes
2011-06-06	Corrected a broken link to the ImageUnitAnalyzer tool.
2009-05-06	Updated line 7 of listing 2-7.
2008-06-09	Updated the table of input parameters to kernel routines.
	Corrected typographical errors in the code.
2008-04-08	Corrected several technical errors in the code listings.
	Made corrections to the detective lens filter image unit methods `outputImage` and `init`.
	Made one change in the `outputImage` method of the pixellate filter.
2007-12-11	Fixed minor technical error.
	Added details on the valid classes for filter input parameters that you can declare in the `description.plist` file for an image unit. See The Image Unit Template in Xcode.
2007-03-20	New document that shows how to write and package image processing filters.